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Start on Cloud

A unified distributed database ready for your transactional, analytical, and AI workloads.

DEPLOY YOUR WAY

OceanBase Cloud

The best way to deploy and scale OceanBase

OceanBase Enterprise

Run and manage OceanBase on your infra

TRY OPEN SOURCE

OceanBase Community Edition

The free, open-source distributed database

OceanBase seekdb

Open source AI native search database

Customer Stories

Real-world success stories from enterprises across diverse industries.

View All
BY USE CASES

Mission-Critical Transactions

Global & Multicloud Application

Elastic Scaling for Peak Traffic

Real-time Analytics

Active Geo-redundancy

Database Consolidation

Comprehensive knowledge hub for OceanBase.

Blog

Live Demos

Training & Certification

Documentation

Official technical guides, tutorials, API references, and manuals for all OceanBase products.

View All
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OceanBase Database

SQL - V4.2.5

  • What is OceanBase Database
    • Overview
    • Differences between Enterprise Edition and Community Edition
    • System architecture
    • Compatibility with Oracle
      • Overview
      • SQL data types
      • Built-in functions
      • System views
    • Compatibility with MySQL
    • Limitations
  • Get Started
    • Quick start with OceanBase Database Community Edition
    • Learn OceanBase SQL
      • Before you begin
      • Basic SQL operations (MySQL mode)
      • Basic SQL operations (Oracle mode)
    • Build a sample application (MySQL mode)
      • Build a Python application
      • Build a Java application
      • Build a C application
      • Build a Go application
    • Build a sample application (Oracle mode)
      • Build a Java application
      • Build a C application
    • Try out advanced features of OceanBase Database
      • Scalable OLTP
        • Run the TPC-C benchmark in OceanBase Database
        • Try out the hot row update capability of OceanBase Database
      • Try out operational OLAP
      • Try out parallel import and data compression
      • Try out the multi-tenant feature
  • Develop
    • Develop applications (MySQL mode)
      • Connect to OceanBase Database
        • Overview
        • Connect to an OceanBase tenant by using the mysql client
        • Connect to an OceanBase tenant by using OBClient
        • Connect to OceanBase Database by using ODC
        • Use database connection pool
          • Database connection pool configuration
          • Tomcat
          • c3p0
          • Proxool
          • HikariCP
          • DBCP
          • Commons Pool
          • Druid
          • Configuration example of JDBC connections
      • Sample applications
        • Java
          • Spring Boot
          • Spring Batch
          • Spring Data JDBC
          • Spring Data JPA
          • Hibernate
          • MyBatis
        • Python
          • mysqlclient
          • PyMySQL
        • Go
          • Go-SQL-Driver/MySQL
          • GORM
      • Plan database objects
        • Create a database
        • Create a table group
        • Create a table
        • Create an index
        • Create an external table
      • Write data
        • Insert data
        • Update data
        • Delete data
        • Replace data
      • Read data
        • Single-table queries
        • Join tables
          • INNER JOIN queries
          • FULL JOIN queries
          • LEFT JOIN queries
          • RIGHT JOIN queries
          • Subqueries
          • Lateral derived table
        • Use operators and functions in queries
          • Use arithmetic operators in queries
          • Use numerical functions in queries
          • Use string concatenation operators in queries
          • Use string functions in queries
          • Use datetime functions in queries
          • Use type conversion functions in queries
          • Use aggregate functions in queries
          • Use NULL-related functions in queries
          • Use the CASE conditional operator in queries
          • Use the SELECT ... FOR UPDATE statement to lock query results
          • Use the SELECT ... LOCK IN SHARE MODE statement to lock query results
        • Use a DBLink in queries
        • Set operations
      • Transactions
        • Overview
        • Start a transaction
        • Savepoints
          • Mark a savepoint
          • Roll back a transaction to a savepoint
          • Release a savepoint
        • Commit a transaction
        • Roll back a transaction
      • Application errors
        • Troubleshooting guidelines
          • About error codes
          • Error handling for MySQL-compatible applications
        • Common errors and troubleshooting practices
          • Disconnected from the server, with ERROR 2013 reported
          • Idle transaction timed out, with ERROR 6002 reported
          • Transaction timed out, with ERROR 4012 reported
          • User locked, with ERROR 3118 reported
          • Incorrect user password, with ERROR 1045 reported
          • Table already exists, with ERROR 1050 reported
          • Table does not exist, with ERROR 1146 reported
          • Duplicate data inserted, with ERROR 1062 reported
          • ERROR 1215 reported in foreign key addition
          • Data truncated while being inserted, with ERROR 1265 reported
    • Develop applications (Oracle mode)
      • Connect to OceanBase Database
        • Overview
        • Connect to an OceanBase tenant by using OBClient
        • Connect to OceanBase Database by using ODC
        • Use database connection pool
          • Database connection pool configuration
          • Tomcat
          • c3p0
          • Proxool
          • HikariCP
          • DBCP
          • Commons Pool
          • Druid
      • Sample applications
        • Java
          • OceanBase Connector/J
          • Spring Boot
          • Spring Batch
          • Spring Data JDBC
          • Spring Data JPA
          • Hibernate
          • MyBatis
          • JFinal
        • C/C++
          • OceanBase Connector/C
          • OceanBase Connector/ODBC
          • SqlSugar
      • Plan database objects
        • Create a table group
        • Create a table
        • Create an index
        • Create an external table
      • Write data
        • Insert data
        • Update data
        • Delete data
        • Replace data
      • Read data
        • Single-table queries
        • Join tables
          • INNER JOIN queries
          • FULL JOIN queries
          • LEFT JOIN queries
          • RIGHT JOIN queries
          • Subqueries
          • Lateral derived table
        • Use operators and functions in queries
          • Use arithmetic operators in queries
          • Use numerical functions in queries
          • Use string concatenation operators in queries
          • Use string functions in queries
          • Use datetime functions in queries
          • Use type conversion functions in queries
          • Use aggregate functions in queries
          • Use NULL-related functions in queries
          • Use CASE functions in queries
          • Use the SELECT...FOR UPDATE statement to lock query results
        • Use a DBLink in queries
        • Set operations
      • Transactions
        • Overview
        • Start a transaction
        • Savepoints
          • Mark a savepoint
          • Roll back a transaction to a savepoint
        • Commit a transaction
        • Roll back a transaction
      • Application errors
        • Troubleshooting guidelines
          • About error codes
          • Error handling specifications for Oracle-compatible applications
        • Common errors and troubleshooting practices
          • Idle transaction timed out, with Error ORA-24761 reported
          • Transaction timed out, with Error ORA-00600 reported
          • User locked, with ERROR 3118 reported
          • Incorrect user password, with ERROR 1045 reported
          • Table already exists, with Error ORA-00955 reported
          • Table does not exist, with Error ORA-04043 reported
          • Duplicate data inserted, with Error ORA-00001 reported
          • Error ORA-00600 reported in foreign key addition
          • Inconsistent data types, with Error ORA-00932 reported
  • Deploy
    • Overview
    • HA deployment solutions for OceanBase clusters
    • Deploy OceanBase Database Enterprise Edition
      • Deployment process
      • Before deployment
        • Prepare servers
        • Configure servers
        • Prepare installation packages
        • Deploy OAT
      • Deploy through GUI
        • Configure deployment environment using OAT
          • Add a server
        • Deploy OCP
          • Overview
          • Upload installation packages
          • Create MetaDB
          • Deploy OCP
        • Deploy OceanBase clusters using OCP
          • Deploy a standalone OceanBase database by using OCP
          • Deploy a two-replica OceanBase cluster with the arbitration service by using OCP
          • Deploy a single-replica OceanBase cluster by using OCP
          • Deploy a three-replica OceanBase cluster by using OCP
        • (Optional) Deploy ODP
      • Deploy through CLI
        • Configure deployment environment
          • Initialize an OBServer node by using oatcli
          • (Optional) Configure the clock source
        • Deploy OceanBase clusters using CLI
          • Deploy a standalone OceanBase database by using the CLI
          • Deploy a two-replica OceanBase cluster with the arbitration service by using the CLI
          • Deploy a single-replica OceanBase cluster by using the CLI
          • Deploy a three-replica OceanBase cluster by using the CLI
        • (Optional) Deploy ODP
    • Deploy OceanBase Database Community Edition
      • Overview
      • Deploy locally
        • Software and hardware requirements
        • Before deployment
          • (Optional) Check resources
          • (Optional) Set password-free SSH login
          • (Optional) Configure the clock source
          • (Optional) Perform disk planning
          • (Optional) Configure limits.conf
          • (Optional) Configure sysctl.conf
          • (Optional) Disable the firewall and SELinux
          • (Optional) Create a user
        • Deploy through GUI
          • Deploy an OceanBase cluster through the GUI of obd
          • Deploy an OceanBase cluster through the GUI of OCP
        • Deploy OceanBase Database in a production environment by using the CLI
        • Deploy OceanBase Database by using systemd
      • Deploy an OceanBase cluster in a Kubernetes environment
    • Clear an OceanBase cluster
  • Migrate
    • Overview
    • Migrate from MySQL databases to OceanBase Database
      • Use OMS to migrate data from a MySQL database to a MySQL tenant of OceanBase Database
      • Use mydumper and myloader to migrate data from a MySQL database to OceanBase Database
      • Use DBCAT to migrate schemas from a MySQL database to OceanBase Database
      • Use DataX to migrate table data from a MySQL database to OceanBase Database
      • Use CloudCanal to migrate data from a MySQL database to OceanBase Database
      • Use Canal to synchronize data from a MySQL database to OceanBase Database
      • Use Flink CDC to synchronize data from a MySQL database to OceanBase Database
      • Use ChunJun to migrate data from a MySQL database to OceanBase Database
    • Migrate from OceanBase Database to MySQL databases
      • Use OMS to migrate data from a MySQL tenant of OceanBase Database to a MySQL database
      • Use OMS to migrate incremental data from an Oracle tenant of OceanBase Database to a MySQL database
      • Use DBCAT to migrate schemas from OceanBase Database to a MySQL database
      • Use DataX to migrate table data from OceanBase Database to a MySQL database
      • Use Canal to synchronize data from OceanBase Database to a MySQL database
      • Use CloudCanal to migrate data from OceanBase Database to a MySQL database
      • Use Flink CDC to migrate data from OceanBase Database to a MySQL database
      • Use ChunJun to migrate data from OceanBase Database to a MySQL database
    • Migrate from Oracle databases to OceanBase Database
      • Use OMS to migrate data from an Oracle database to a MySQL tenant of OceanBase Database
      • Use OMS to migrate data from an Oracle database to an Oracle tenant of OceanBase Database
      • Use DBCAT to migrate schemas from an Oracle database to OceanBase Database
      • Use DataX to migrate table data from an Oracle database to OceanBase Database
    • Migrate from OceanBase Database to Oracle databases
      • Use OMS to migrate data from an Oracle tenant of OceanBase Database to an Oracle database
      • Use DBCAT to migrate schemas from OceanBase Database to an Oracle database
      • Use DataX to migrate table data from OceanBase Database to an Oracle database
    • Migrate from DB2 databases to OceanBase Database
      • Use OMS to migrate data from a DB2 LUW database to a MySQL tenant of OceanBase Database
      • Use OMS to migrate data from a DB2 LUW database to an Oracle tenant of OceanBase Database
      • Use DBCAT to migrate table schemas from a DB2 LUW database to OceanBase Database
    • Migrate from OceanBase Database to DB2 databases
      • Use OMS to migrate data from a MySQL tenant of OceanBase Database to a DB2 LUW database
      • Use OMS to migrate data from an Oracle tenant of OceanBase Database to a DB2 LUW database
    • Migrate from TiDB databases to OceanBase Database
      • Use OMS to migrate data from a TiDB database to a MySQL tenant of OceanBase Database
    • Migrate from PostgreSQL databases to OceanBase Database
      • Use OMS to migrate data from a PostgreSQL database to a MySQL tenant of OceanBase Database
    • Migrate from CSV files to OceanBase Database
      • Use DataX to migrate CSV files to OceanBase Database
      • Use the LOAD DATA statement to import data
    • Import data from SQL files to OceanBase Database
    • Migrate data between OceanBase Database
      • Use OMS to migrate data from an OceanBase tenant to another of the same type
      • Use OMS to migrate data from an OceanBase tenant to another of the same type in active-active disaster recovery scenarios
      • Use obloader & obdumper to migrate data between MySQL tenants in OceanBase Database
      • Use obloader & obdumper to migrate data from a MySQL tenant to an Oracle tenant in OceanBase Database
      • Use obloader & obdumper to migrate data between Oracle tenants in OceanBase Database
      • Use obloader & obdumper to migrate data from an Oracle tenant to a MySQL tenant in OceanBase Database
    • Migrate data using SQL statements
      • Migrate data between tables
      • Migrate resource units
      • Use the `SELECT INTO OUTFILE` statement to export data
    • Bypass import
      • Overview
      • Use the LOAD DATA statement to import data in direct load mode
      • Use the INSERT INTO SELECT statement to import data in direct load mode
  • Manage
    • Log in to an OceanBase tenant
    • Manage clusters
      • Overview
      • Cluster parameters
      • Common cluster operations
        • View a zone
        • View a node
        • Restart a node
        • Add a node
        • Delete a node
        • Isolate a node
        • Replace a node
        • Start a zone
        • Add a zone
        • Delete a zone
        • Modify a zone
        • Isolate a zone
        • View cluster parameters
        • Modify cluster parameters
        • Online upgrade from standalone deployment to distributed deployment
        • Upgrade clusters
          • Upgrade OceanBase Database Enterprise Edition
            • Upgrade overview
            • Upgrade an arbitration service
            • Upgrade an OceanBase cluster
            • Check upgrade results
          • Upgrade OceanBase Database Community Edition
            • Upgrade OceanBase Database by using obd
      • Troubleshoot common problems
        • Failures of a minority of nodes
        • Failures of the majority of nodes
    • Manage tenants
      • Tenant introduction
      • Tenant capacity
      • Tenant types
      • User tenant introduction
      • Tenant system variables
      • Common tenant operations
        • Create a tenant
        • Resource isolation
          • Overview
          • Manage resource isolation (Oracle mode)
            • Configure cgroups
            • Configure global CPU resource isolation for foreground and background tasks
            • Calibrate the disk performance
            • Configure resource isolation within a tenant
            • Update a plan directive
            • Delete a plan directive
            • Delete a resource management plan
            • Delete a resource group
            • Clear cgroup configurations
          • Manage resource isolation (MySQL mode)
            • Configure cgroups
            • Configure global CPU resource isolation for foreground and background tasks
            • Calibrate the disk performance
            • Configure resource isolation within a tenant
            • Update a plan directive
            • Delete a plan directive
            • Delete a resource management plan
            • Delete a resource group
            • Clear cgroup configurations
        • Query tenant and resource information
        • View and set the tenant allowlist
        • View system variables of a tenant
        • Modify system variables of a tenant
        • Scale in/out
          • Introduction to scaling in/out
          • Plan resources
          • Modify the unit config for a tenant
          • Modify the number of resource units for a tenant
          • Modify the number of primary zones for a tenant
        • Modify attributes of a resource pool
        • Modify attributes of a tenant
        • Lock and unlock a tenant
        • Clone a tenant
        • Cancel tenant cloning
        • Drop a tenant
        • Restore a tenant
        • Rename a tenant
        • Manage resource pools
          • View resource pool information
          • Allocate a resource pool to a tenant
          • Remove resource pools from a tenant
          • Merge and split resource pools
          • Drop a resource pool
        • Manage unit configs
          • Query unit configs
          • Modify a unit config
          • Drop a unit config
        • Manage services
          • Create a service
          • Query the service status
          • Start a service
          • Stop a service
          • Delete a service
    • Manage replicas
      • Overview
      • Replica distribution
        • Locality
        • Common locality operations
          • View locality
          • Modify locality
          • Add replicas
          • Remove replicas
          • Convert the type of a replica
          • Adjust the distribution of replicas
          • View the locality change history
          • Migrate replicas
          • Modify the number of Paxos replicas of a log stream
          • Cancel a replica task
      • Traffic distribution
      • Data distribution
      • Data load balancing
        • Overview
        • Transfer a partition
        • Cancel a partition transfer task
        • Cancel a load balancing job
        • Partition balancing
          • Configure the scheduled partition balancing job
          • Manually trigger a partition balancing job
          • View the parameters of the scheduled partition balancing job
          • Query the scheduling history of the scheduled partition balancing job
          • Query partition balancing jobs and tasks in the background
          • Query the history of partition balancing jobs and tasks in the background
    • High availability
      • High availability overview
      • Multi-replica disaster recovery
        • Data link introduction
        • ODP high availability
        • Database-level high availability
        • Disaster recovery architecture and levels
      • Physical standby database disaster recovery
        • Overview
        • Limitations
        • Create a standby tenant
          • Preparations
          • Create an empty standby tenant
          • Create a standby tenant by using the backup and restore (with complete logs) feature
          • Create a standby tenant by using the BACKUP DATABASE PLUS ARCHIVELOG feature
        • Log transmission service
          • Overview
          • Configure log transmission service
            • Specify a log restore source
            • Specify a log restore endpoint
          • View the log restore source
          • View the log synchronization progress
          • Pause or resume log synchronization
          • Optimize the log synchronization performance
          • Set the log synchronization bandwidth limit
          • Specify log compression
        • Log storage service
        • Switch roles
          • Overview of tenant roles
          • Switchover
          • Failover
        • Drop primary and standby tenants
      • Arbitration high availability
        • Overview
        • Enable the arbitration service for a tenant
        • Disable the arbitration service for a tenant
        • Modify the log stream downgrade control time
        • Query log stream upgrade/downgrade information
        • Replace the arbitration service for a cluster
        • Remove the arbitration service for a cluster
        • Clear residual cluster information
      • Manage recycle bin
        • Overview
        • Enable or disable the recycle bin
        • View objects in the recycle bin
        • Restore objects from the recycle bin
        • Purge the recycle bin
      • Flashback queries
    • Security and permissions
      • Overview
      • Identification and authentication
        • MySQL mode
          • Identity authentication
          • Password complexity
          • Login failure handling
        • Oracle mode
          • Identity authentication
          • Password complexity
          • Login failure handling
      • Access control
        • Overview
        • Users and permissions
          • Overview
          • MySQL mode
            • Privilege types in MySQL mode
            • Create a user
            • Grant direct privileges
            • Privilege delegation
            • Manage roles
              • Overview
              • Create a role
              • Grant privileges to a role
              • Grant a role to a user or another role
              • Activate a role
              • View roles
              • Revoke privileges from a role
              • Revoke a role from a user or another role
              • Drop a role
            • Grant indirect privileges
            • View user privileges
            • Revoke privileges
            • Lock or unlock a user
            • Drop a user
          • Oracle mode
            • Privilege types in Oracle mode
            • Create a user
            • View the information of a user
            • Grant direct privileges
            • Privilege delegation
            • Manage roles
              • Overview
              • Create a role
              • Grant a role to another role
              • Grant a role to a user
              • Activate or deactivate roles for a user
              • View roles
              • Modify a role
              • Revoke a role
              • Drop a role
            • Indirect privileges
            • View user privileges
            • Revoke privileges
            • Use a proxy user
            • Lock or unlock a user
            • Drop a user
        • Network security access control
        • RPC connection authentication
        • Row-level access control
      • Data transmission encryption
        • Overview
        • OBServer node transmission encryption
        • ODP transmission encryption
      • Transparent data encryption
        • Overview
        • MySQL mode
          • Enable TDE for new tables
          • Enable TDE for existing tables
          • Decrypt a table
        • Oracle mode
          • Enable TDE for new tables
          • Enable TDE for existing tables
          • Decrypt a table
      • Security audit
        • Overview
        • MySQL mode
          • Enable security audit
          • Set audit rules
          • View audit records
          • Disable security audit
        • Oracle mode
          • Set and view audit rules
          • View audit records
          • Audit user login operations
          • Audit specified database objects
    • Backup and restore
      • Introduction to physical backup and restore
      • Experience physical backup and restore with simplified deployment
      • Deploy NFS
      • Log archive
        • Overview
        • Preparations
        • Enable ARCHIVELOG
        • Suspend archiving
        • Disable ARCHIVELOG
        • View information about pieces
        • View the archiving progress
        • View the archiving history
        • View archiving parameter settings
        • Change the log archive destination
        • Clear the archive path setting
        • Views related to log archiving
      • Data backup
        • Preparations
        • Initiate a full data backup job
        • Initiate an incremental data backup job
        • Back up parameters
        • Stop a backup job
        • View the data backup progress
        • View the data backup history
        • View data backup parameter settings
        • Change the backup destination
        • Views related to data backup
      • Clear backup data
        • Automatically clean up expired backup data
        • Stop backup cleanup
        • Query the backup cleanup progress
        • Query the backup cleanup history
        • Backup cleanup parameter
        • Views related to backup cleanup
      • Restore data
        • Preparations
        • Perform physical restore
        • Perform restore from the specified paths
        • Cancel physical restore
        • View the physical restore progress
        • View physical restore results
        • Replay logs to a standby tenant
        • Convert a standby tenant into primary tenant
        • Upgrade a tenant after restore
        • Parameters related to physical restore
        • Views related to physical restore
      • Restore by table
        • Preparations
        • Perform table restore
        • Cancel table restore
        • View the table restore progress
        • View the table restore result
        • Parameters related to table restore
        • Views related to table restore
    • Monitor
      • Overview
      • Metrics
        • System monitoring
          • Overview
          • Metrics
          • Wait events
          • Latch events
        • SQL monitoring
          • Overview
          • SQL audit
          • Execution plans
      • Cases
    • Logs
      • Overview
      • Log levels
      • Log stability
      • Log control
      • Log compression and decompression
      • Log metrics
      • Alert logs
      • View logs
        • Search for the logs of a specific SQL request
        • Query the log of a previous SQL request by using the SQL Trace feature
    • Daily inspection
      • Overview
      • Check cluster parameters
      • Check the host status
      • Check tenant resource usage
      • Check cluster resource usage
      • Check the OBServer node status
      • Check the NTP offset
      • Deadlock detection
      • End-to-end tracing
        • Overview
        • Process
        • Methods
        • Show end-to-end tracing information
        • Quick start: End-to-end diagnosis with obdiag
    • Performance tunning
      • Overview
      • Identify bottlenecks on a link
      • Identify bottlenecks within components
        • ODP performance bottlenecks
        • ODP performance analysis
        • OBServer performance bottlenecks
          • Overview
          • Non-optimal plan
            • Suboptimal plans
            • Buffer tables
            • Cardinality
          • Hard parsing
          • Capacity issues
          • Internal wait events
      • SQL tunning
        • SQL tuning system
        • Execution plan optimization
          • Statistical information and row estimation
            • Overview
            • Statistical information
              • Overview
              • Collect statistical information
                • Overview
                • Manually collect statistics
                • Automatically collect statistics
              • Query statistics
              • Manage statistical information
                • Overview
                • Delete and set statistics
                • Import and export statistics
                • Lock statistics
                • Query historical versions of statistics and roll back to a specified version
                • Configure statistics collection strategies
            • Row estimation
              • Overview
              • Row estimation based on the selectivity
              • Row estimation based on the storage layer
            • Use statistical information and row estimation
          • Plan management
            • Plan cache
            • Disadvantages of the plan cache and countermeasures
            • Views related to the plan cache
          • Index selection
            • Overview
            • Reduce row reads
            • Avoid table access by index primary key
            • Avoid sorting
          • Join order and join algorithm
            • Joins
            • Join algorithm
              • Nested loop joins
              • Hash joins
              • Merge joins
              • Common business issues
            • Join types
            • Join order
          • Order and limit optimization
            • Overview
            • SORT assignment and optimization
            • Optimization in ORDER BY + LIMIT scenarios
        • Business logic optimization
          • SQL specifications
          • Schema specifications
        • Locate and analyze slow queries I
        • Locate and analyze slow queries II
        • Typical scenarios and cases
    • Troubleshooting
      • Overview
      • Bootstrap
      • Storage
        • Minor compaction and major compaction
        • Memory-related errors
        • Migration, replication, and rebuild tasks
      • Election
        • Election
        • Leader switchover exceptions
        • Absence of the leader
      • Transaction
        • Transaction-related errors
        • Transaction rollbacks
        • Long-running transaction
        • Suspended transaction
        • Idle transactions
      • Log synchronization-related errors
      • Physical standby database
        • Log synchronization stuck for the physical standby database
        • Switchover and failover issues
        • Other issues
      • Backup and restore
        • Data backup failures
        • Physical restore failures
      • Arbitration server process startup failures
    • Emergency response
      • Emergency response overview
      • Analysis, diagnosis, and decision-making procedure
      • Common emergency problem handling
        • Hardware issues
          • Node failure
          • Network failure
          • ODP failure
          • Other hardware and network issues
        • Capacity issues
          • Exceptions of SQL queries
          • Node disk I/O high
          • Node network card overload
          • Tenant memory full
          • obproxy thread exhaustion
          • Node clog disk full
          • Node data disk full
          • Tenant request queue backlog
        • Other cluster issues
          • sys tenant or RootService exceptions
          • Insufficiency or leakage of system memory
  • OBKV
    • Overview
    • Architecture
    • OBKV-Table
      • Introduction
        • Overview
        • OBKV-Table operation types
        • Differences between replace and insert_or_update
        • Supported value types
        • OBKV-Table data models
      • Use the OBKV-Table Java client
        • Use the OBKV-Table Java client to connect to a cluster
        • Set client parameters
        • Supported client interfaces
        • Use the OBKV-Table Java client
      • Use the OBKV-Table GO client
        • Use the OBKV-Table Go client to connect to a cluster
        • Overview of the Go client
        • Individual API operations
        • Batch operations
        • About queries
        • Aggregation API
        • Filters
      • FAQ
    • OBKV-HBase
      • Overview
      • Core features
      • Compatibility with HBase
      • Deployment
      • Use OBKV-HBase
        • Overview
        • Data model
        • Data model design
        • Connect to a cluster by using the OBKV-HBase client
        • Data operation examples
        • Delete expired data
      • OBKV-HBase management
        • Overview
        • High availability
        • Security and permissions
        • Monitoring metrics
      • Performance test
      • OBKV-HBase integration
        • Synchronize data to OBKV-HBase by using Flink
      • Views
      • FAQ
  • Reference
    • OceanBase concepts
      • Architecture of OceanBase Database
      • Development of OceanBase Database
      • Multi-tenant architecture
        • Overview
        • Compatibility modes
        • Tenants
        • Tenants and resource management
          • Tenant resource management
          • Multi-tenant resource isolation
          • Resource unit balancing
      • Database objects
        • Oracle mode
          • Introduction
            • Overview
            • Database object types
            • Database object storage
            • Dependencies between database objects
          • Tables
            • Overview
            • Data type
              • Overview
              • Character data types
              • Numeric data types
              • Datetime data types
              • ROWID data types
              • LOB data types
              • Format model
                • Overview
                • Number format models
                • Datetime format models
              • Multi-model data types
            • Integrity constraints
            • Table storage
            • Table compression
            • Partitioned table
            • Tables with and without a primary key
            • Temporary table
          • Indexes
            • About indexes
            • Local and global indexes
            • Unique and non-unique indexes
            • Use indexes
            • Index storage
          • Partitions
            • Overview
            • Partitioning keys
            • Partitioning types
            • Partitioned indexes
          • Views
            • Overview
            • View categorization
            • OceanBase-specific views
            • Oracle-compatible views
            • Data operations in views
            • Data access from views
            • Updatable views
          • Other objects
            • Sequences
            • Synonyms
          • System views
            • Dictionary views
            • Performance views
          • Data integrity
            • Overview
            • Integrity constraint type
              • Overview
              • NOT NULL constraints
              • UNIQUE KEY constraints
              • PRIMARY KEY constraints
              • FOREIGN KEY constraints
              • CHECK constraints
            • Use of integrity constraints
        • MySQL mode
          • Introduction
            • Overview
            • Database object types
            • Database object storage
            • Dependencies between database objects
          • Tables
            • Overview
            • Data type
              • Overview
              • Numeric data types
              • Datetime data types
              • Character data types
              • LOB data types
              • Multi-model data types
            • Integrity constraints
            • Table storage
            • Table compression
            • Partitioned table
            • Tables with and without a primary key
          • Indexes
            • About indexes
            • Local and global indexes
            • Unique and non-unique indexes
            • Spatial indexes
            • Use indexes
            • Index storage
          • Partitions
            • Overview
            • Partitioning keys
            • Partitioning types
            • Partitioned indexes
          • Views
            • Overview
            • View categorization
            • OceanBase-specific views
            • MySQL-compatible views
            • Oracle-compatible views in MySQL tenants
            • Oracle-compatible views in the sys tenant
            • Data operations in views
            • Data access from views
            • Updatable views
          • System views
            • Dictionary views
            • Performance views
          • Data integrity
            • Overview
            • Integrity constraint type
              • Overview
              • NOT NULL constraints
              • UNIQUE KEY constraints
              • PRIMARY KEY constraints
              • FOREIGN KEY constraints
            • Use of integrity constraints
      • Distributed database objects
        • Overview
        • Cluster architecture
        • Log streams and replicas
          • Overview
          • Log streams
          • Replica type
            • Overview
            • Full-featured replica
            • Read-only replicas
          • Multi-replica consensus protocols
          • Data balancing
            • Intra-tenant balancing
            • Views and parameters related to data balancing
        • Dynamic scaling
          • Cluster scaling
          • Tenant resource scaling
            • Overview
            • Horizontal scaling of tenant resources
            • Vertical scaling of tenant resources
            • Cross-zone management of tenant resources
      • Data link
        • Overview
        • Database proxy
          • Overview
          • SQL routing
          • Connection management
          • ODP configuration management
          • Logs and monitoring
        • Database connector
          • Overview
          • OBCI
          • OceanBase Connector/J
          • OceanBase Connector/C
      • User interface and query language
        • SQL
          • Introduction
            • Overview
            • SQL data access
            • SQL standards
          • SQL statements
            • Overview
            • DDL statements
            • DML statements
            • DCL statements
          • Execution process of SQL queries
          • Query SQL execution plans
          • Distributed execution plan
            • Perform distributed execution and parallel queries
            • Generate distributed execution plans
            • Run and disable a parallel query
            • Manage distributed execution plans
            • Perform parameter tuning for a parallel query
        • PL
          • PL concepts
            • Oracle mode
              • Subprograms
              • Stored procedures
              • Functions
              • Triggers
              • Packages
            • MySQL mode
              • Subprograms
              • Stored procedures
              • Functions
              • MySQL Mode
          • PL subprogram execution mechanism
        • Client programming languages
      • Transaction management
        • Transaction
          • Overview
          • Transaction structure
          • Statement-level atomicity
          • GTS
          • Transaction control
            • Overview
            • Active transactions
            • Savepoint
            • Transaction control statements
              • MySQL transaction control
              • Oracle transaction control
          • Redo logs
          • Local transactions
          • Distributed transaction
            • Overview
            • Two-phase commit
          • XA transactions
        • Transaction concurrency and consistency
          • Overview
          • Multi-version read consistency
          • Concurrency control
            • Overview
            • Lock mechanism
            • Lock Wait Mgr
          • Transaction isolation level
            • Overview
            • Transaction isolation levels in Oracle mode
            • Transaction isolation levels in MySQL mode
          • Weak-consistency read
      • Storage architecture
        • Overview
        • Data storage
          • Overview
          • MemTables
          • SSTables
          • Compression and encoding
        • Compaction
          • Overview
          • Minor compaction
          • Major compaction
        • Multi-level caches
        • Query processing
        • Data integrity
          • Detect silent data corruption
      • Data reliability and high availability
        • High availability architecture
          • Overview
          • ODP high availability
          • Leader election in distributed systems
          • Multi-replica log synchronization
          • Paxos protocol
          • Automatic handling of node failures
        • Deployment solutions for disaster recovery
        • Data protection
          • Overview
          • Flashback queries
          • Recycle bin
        • Backup and restore
          • Overview
          • Backup directory structures
          • Backup architecture
          • Restore process
        • Arbitration-based high availability solution
        • Physical Standby Database solution
      • Database security
        • Overview
        • Authentication
        • Access control
        • Data transmission encryption
        • Data storage encryption
        • Monitoring and alerting
        • Security audit
      • OBServer node architecture
        • Structure of the OBServer node installation directory
        • Configuration files
        • observer thread model
          • Threads
          • Worker threads
          • Background threads
        • Logs
        • Memory management
          • Overview
          • Memory-related parameters
          • Memory-related views
          • Memory usage logs
          • Diagnose memory errors
    • System management
      • Configuration management
        • Overview
        • Set parameters
        • Set variables
      • Storage management
        • Minor compaction management
          • Overview
          • Automatically trigger a minor compaction
          • Manually initiate a minor compaction
          • View minor compaction information
          • Modify minor compaction settings
        • Major compaction management
          • Overview
          • Automatically trigger a major compaction
          • Configure scheduled major compactions
          • Adaptive major compactions
          • Manually initiate a major compaction
          • Manually control a major compaction
          • View the major compaction process
          • Modify major compaction settings
        • Data compression
          • Overview
          • Data encoding and compression
      • Memory management
        • Overview
        • Memory structure
        • Set the maximum memory for an OceanBase database
        • Manage internal system memory
        • Manage internal tenant memory
        • Manage the memory of the plan cache
        • Memleak-based regular memory leak diagnostics mechanism
        • Query memory usage information
        • Memory usage control
        • FAQ about memory
      • Process management
        • Overview
        • Multi-tenant threads of OceanBase Database
        • View the thread status
        • Background threads of OceanBase Database
        • FAQ about multi-tenant threads
      • Disk management
        • Configure automatic scale-out of disk space for data files
    • Database object management
      • Overview
      • MySQL mode
        • Create and manage databases
          • Create a database
          • View databases
          • Modify a database
          • Drop a database
        • Create and manage tables
          • Overview
          • Create a table
          • Define an auto-increment column
          • Define column constraints
          • Query tables
          • Modify a table
          • Change the replicated table attribute
          • Empty a table
          • Drop a table
          • Lock a table
          • Create and manage external tables
            • Overview
            • Create an external table
            • Manage external files
        • Create and manage partitions
          • Overview
          • Create a partitioned table
          • Modify partitioning rules
          • Add a partition
          • Drop a partition
          • Truncate a partition
          • Partition pruning
          • Query data in specified partitions
          • Create indexes on partitioned tables
            • Overview
            • Local indexes
            • Global indexes
        • Create and manage table groups
          • Overview
          • Create a table group
          • Query information about a table group
          • Add tables to a table group
          • Modify the SHARDING attribute of a table group
          • Manage tables in a table group
          • Drop a table group
        • Create and manage indexes
          • Overview
          • Create an index
          • Query indexes
          • Monitor indexes
          • Drop an index
          • System functions supported for function-based indexes
          • System functions not supported for function-based indexes
        • Manage views
        • Create and manage sequences
          • Create a sequence
          • Query sequences
          • Reference a sequence
          • Modify a sequence
          • Drop a sequence
        • Create and manage triggers
          • Overview
          • Create a DML trigger
          • Query trigger information
          • Drop a trigger
        • Create and manage DBLinks
          • Create a DBLink
          • Query existing DBLinks
          • Manage DBLinks
          • Use a DBLink to access data in a remote database
          • Drop a DBLink
      • Oracle mode
        • Create and manage tables
          • Overview
          • Create a table
          • Define column constraints
          • Query the definition of a table
          • Modify a table
          • Change the replicated table attribute
          • Empty a table
          • Drop a table
          • Lock a table
          • Create and manage external tables
            • Overview
            • Create an external table
            • Manage external files
        • Create and manage partitions
          • Overview
          • Create a partitioned table
          • Modify partitioning rules
          • Rename a partition
          • Add a partition
          • Drop a partition
          • Truncate a partition
          • Partition pruning
          • Query data in specified partitions
          • Create indexes on partitioned tables
            • Overview
            • Local indexes
            • Global indexes
        • Create and manage table groups
          • Overview
          • Create a table group
          • Query information about a table group
          • Add tables to a table group
          • Modify the SHARDING attribute of a table group
          • Manage tables in a table group
          • Drop a table group
        • Create and manage indexes
          • Overview
          • Create an index
          • Query indexes
          • Monitor indexes
          • Drop an index
          • System functions supported for function-based indexes
          • System functions not supported for function-based indexes
        • Manage views
        • Manage sequences
        • Manage synonyms
        • Create and manage triggers
          • Overview
          • Create a DML trigger
          • Create an INSTEAD OF trigger
          • Create a composite trigger
          • Modify and drop a trigger
          • Disable or enable a trigger
          • Query trigger information
        • Manage directory objects
        • Create and manage DBLinks
          • Create a DBLink
          • Query existing DBLinks
          • Manage DBLinks
          • Use a DBLink to access data in a remote database
          • Use a DBLink to modify the data in a remote database
          • Drop a DBLink
          • Install and configure OCI
    • Database design specifications and practices
      • Object naming conventions
        • Overview
        • Tenant naming conventions
        • User naming conventions
        • Table naming conventions
        • Field naming conventions
        • Other naming conventions
      • Object structure design specifications
        • Field design
        • Table structure design
        • Partitioned table design
        • Index design
        • Other structural designs
      • Character set specifications
      • Database connection specifications
      • Comments
      • ORM conventions
      • Exception handling
    • SQL reference
      • SQL syntax
        • System tenants
          • Overview
          • ALTER SYSTEM
            • ACTIVATE STANDBY
            • ADD REPLICA
            • ADD RESTORE SOURCE
            • SET LOG_ARCHIVE_DEST
            • SET LOG_ARCHIVE_DEST_STATE
            • ARCHIVELOG
            • NOARCHIVELOG
            • ARBITRATION
            • BOOTSTRAP
            • BACKUP KEY
            • BACKUP
            • BACKUP CLUSTER PARAMETERS
            • BALANCE TASK
            • CANCEL BACKUP
            • BALANCE JOB
            • CANCEL DELETE BACKUP
            • CANCEL MIGRATE UNIT
            • CANCEL REPLICA TASK
            • CHANGE TENANT
            • CANCEL RESTORE
            • CANCEL RECOVER TABLE
            • CANCEL TRANSFER PARTITION
            • CLEAR RESTORE SOURCE
            • CREATE LS
            • MAJOR and MINOR
            • MIGRATE REPLICA
            • MIGRATE UNIT
            • MODIFY LS
            • MODIFY PAXOS_REPLICA_NUM
            • MODIFY REPLICA
            • MODULE DATA
            • DELETE BACKUP POLICY
            • FLUSH PLAN CACHE
            • JOB
            • SET LOG_RESTORE_SOURCE
            • PARAMETER
            • RECOVER STANDBY
            • RECOVER STANDBY CANCEL
            • REMOVE REPLICA
            • REFRESH
            • RESTORE
            • RESTORE PREVIEW
            • RECOVER TABLE
            • SET DATA_BACKUP_DEST
            • SERVER
            • SERVICE_NAME
            • SWITCHOVER
            • THROTTLE
            • TRANSFER PARTITION
            • WASH MEMORY FRAGMENTATION
            • LOAD MODULE DATA
            • CHECK MODULE DATA
            • ZONE
          • ALTER RESOURCE POOL
          • ALTER RESOURCE TENANT
          • ALTER RESOURCE UNIT
          • ALTER TENANT
          • CREATE RESOURCE POOL
          • CREATE RESOURCE UNIT
          • CREATE TENANT
          • CREATE STANDBY TENANT
          • DROP RESOURCE POOL
          • DROP RESOURCE UNIT
          • DROP TENANT
          • SET DECRYPTION
          • SET ENCRYPTION
          • SHOW RESTORE PREVIEW
        • User tenants (MySQL mode)
          • Basic elements
            • Data types
              • Overview
              • Numeric types
                • Overview
                • Integer data types
                • Fixed-point types
                • Floating-point data types
                • Bit value data type
              • Datetime types
                • Overview
                • DATE, DATETIME, and TIMESTAMP types
                • TIME type
                • YEAR type
              • String types
                • Overview
                • CHAR and VARCHAR
                • BINARY and VARBINARY
              • Large objects and text types
                • Overview
                • BLOB types
                • TEXT types
                • LOB types
              • ENUM type
              • SET type
              • JSON data types
                • Overview
                • Create a JSON value
                • Query and modify JSON values
                • Convert a JSON data type
              • Spatial data types
                • Overview of spatial data types
                • Spatial reference systems (SRS)
                • Create a spatial column
                • Create a spatial index
                • Spatial data formats
            • Expressions
              • Overview
              • Expression syntax
              • Data type conversion rules
            • Character set and collation
              • Overview
              • Character sets
              • Character sets
              • Database-level character set and collation
              • Table-level character set and collation
              • Column-level character sets and collations
              • Character sets and collations for character expressions
              • Character sets and collations for client connection
            • Literals
              • Overview
              • Strings
              • Numbers
              • Datetime values
              • Bit values
              • Boolean values
              • NULLs
            • Schema object names
            • User-defined variables
            • Comments
          • Operators
            • Overview of operators
            • Operator precedence
            • Arithmetic operators
            • Bitwise operators
            • Comparison operators
            • Logical operators
            • Assignment operators
            • Date and time operators
            • Concatenation operators
            • BINARY operator
            • CASE conditional operator
          • Sequence pseudo-columns
          • Functions
            • Overview
            • Single-row functions
              • Datetime functions
                • ADDDATE
                • CONVERT_TZ
                • CURDATE
                • CURRENT_DATE
                • CURRENT_TIME
                • CURRENT_TIMESTAMP
                • CURTIME
                • DATE
                • DATE_ADD
                • DATE_FORMAT
                • DATE_SUB
                • DATEDIFF
                • DAYOFMONTH
                • DAYOFWEEK
                • DAYOFYEAR
                • EXTRACT
                • FROM_DAYS
                • FROM_UNIXTIME
                • GET_FORMAT
                • HOUR
                • LAST_DAY
                • LOCALTIME
                • LOCALTIMESTAMP
                • MAKEDATE
                • MAKETIME
                • MICROSECOND
                • MINUTE
                • MONTH
                • MONTHNAME
                • NOW
                • PERIOD_ADD
                • PERIOD_DIFF
                • QUARTER
                • SEC_TO_TIME
                • SECOND
                • STR_TO_DATE
                • SUBDATE
                • SUBTIME
                • SYSDATE
                • TIME
                • TIME_FORMAT
                • TIME_TO_SEC
                • TIME_TO_USEC
                • TIMEDIFF
                • TIMESTAMP
                • TIMESTAMPADD
                • TIMESTAMPDIFF
                • TO_DAYS
                • TO_SECONDS
                • UNIX_TIMESTAMP
                • USEC_TO_TIME
                • UTC_DATE
                • UTC_TIME
                • UTC_TIMESTAMP
                • WEEK
                • WEEKDAY
                • WEEKOFYEAR
                • YEARWEEK
                • YEAR
                • ADDTIME
                • DAYNAME
                • DAY
              • String functions
                • ASCII
                • BIN
                • BIT_LENGTH
                • CHAR
                • CHAR_LENGTH
                • CHARACTER_LENGTH
                • CONCAT
                • CONCAT_WS
                • ELT
                • EXPORT_SET
                • FIELD
                • FIND_IN_SET
                • FORMAT
                • HEX
                • INSERT
                • INSTR
                • INT2IP
                • IP2INT
                • LCASE
                • LEFT
                • LENGTH
                • LOCATE
                • LOWER
                • LPAD
                • LTRIM
                • MAKE_SET
                • MID
                • OCT
                • OCTET_LENGTH
                • ORD
                • POSITION
                • QUOTE
                • REGEXP
                • REGEXP_INSTR
                • REGEXP_LIKE
                • REGEXP_REPLACE
                • REGEXP_SUBSTR
                • REPEAT
                • REPLACE
                • REVERSE
                • RIGHT
                • RLIKE
                • RPAD
                • RTRIM
                • SPACE
                • STRCMP
                • SUBSTR
                • SUBSTRING
                • SUBSTRING_INDEX
                • TRIM
                • UCASE
                • UNHEX
                • UPPER
                • WEIGHT_STRING
                • TO_BASE64
                • FROM_BASE64
                • SOUNDEX
              • Conversion functions
                • CAST
                • CONVERT
                • DECODE_TRACE_ID
                • SCN_TO_TIMESTAMP
                • TIMESTAMP_TO_SCN
                • TO_PINYIN
              • Mathematical functions
                • ABS
                • ACOS
                • ASIN
                • ATAN
                • ATAN2
                • BIT_COUNT
                • CEIL
                • CEILING
                • CONV
                • COS
                • COT
                • CRC32
                • DEGREES
                • EXP
                • FLOOR
                • GENERATOR
                • LN
                • LOG
                • LOG10
                • LOG2
                • MOD
                • NEG
                • NORMAL
                • PI
                • POW
                • POWER
                • RADIANS
                • RAND
                • RANDOM
                • RANDSTR
                • ROUND
                • SIGN
                • SIN
                • SQRT
                • TAN
                • TRUNCATE
                • UNIFORM
                • ZIPF
              • Comparison functions
                • GREATEST
                • INTERVAL
                • ISNULL
                • LEAST
              • Process control functions
                • CASE
                • IF
                • IFNULL
                • NULLIF
                • ORA_DECODE
            • Aggregate functions
              • APPROX_COUNT_DISTINCT
              • AVG
              • BIT_AND
              • BIT_OR
              • BIT_XOR
              • COUNT
              • GROUP_CONCAT
              • GROUPING
              • MAX
              • MIN
              • STD
              • STDDEV
              • STDDEV_POP
              • STDDEV_SAMP
              • SUM
              • VAR_POP
              • VAR_SAMP
              • VARIANCE
            • Analysis functions
              • APPROX_COUNT_DISTINCT
              • AVG
              • BIT_AND
              • BIT_OR
              • BIT_XOR
              • COUNT
              • CUME_DIST
              • DENSE_RANK
              • FIRST_VALUE
              • LAG
              • LAST_VALUE
              • LEAD
              • MAX
              • MIN
              • NTH_VALUE
              • NTILE
              • PERCENT_RANK
              • PERCENTILE_CONT
              • RANK
              • ROW_NUMBER
              • STD
              • STDDEV
              • STDDEV_POP
              • STDDEV_SAMP
              • SUM
              • VAR_POP
              • VAR_SAMP
              • VARIANCE
            • Encryption functions
              • AES_DECRYPT
              • AES_ENCRYPT
              • COMPRESS
              • DECODE
              • DES_DECRYPT
              • DES_ENCRYPT
              • ENCODE
              • ENCRYPT
              • ENHANCED_AES_ENCRYPT
              • ENHANCED_AES_DECRYPT
              • MD5
              • PASSWORD
              • UNCOMPRESS
              • UNCOMPRESSED_LENGTH
              • RANDOM_BYTES
              • SHA
              • SHA1
              • SHA2
              • VALIDATE_PASSWORD_STRENGTH
              • SM3
              • SM4_ENCRYPT
              • SM4_DECRYPT
            • Information functions
              • BENCHMARK
              • CHARSET
              • COERCIBILITY
              • COLLATION
              • CONNECTION_ID
              • CURRENT_ROLE
              • CURRENT_USER
              • DATABASE
              • FOUND_ROWS
              • LAST_INSERT_ID
              • ICU_VERSION
              • ROW_COUNT
              • SCHEMA
              • SESSION_USER
              • SYSTEM_USER
              • USER
              • VERSION
              • OB_VERSION
            • JSON functions
              • Overview
              • Create JSON text functions
                • JSON_ARRAY
                • JSON_OBJECT
                • JSON_QUOTE
              • Search JSON text functions
                • JSON_CONTAINS
                • JSON_CONTAINS_PATH
                • JSON_EXTRACT
                • JSON_KEYS
                • JSON_OVERLAPS
                • JSON_SEARCH
                • JSON_VALUE
                • MEMBER OF
              • Modify JSON text functions
                • JSON_ARRAY_APPEND
                • JSON_APPEND
                • JSON_ARRAY_INSERT
                • JSON_INSERT
                • JSON_MERGE
                • JSON_MERGE_PATCH
                • JSON_MERGE_PRESERVE
                • JSON_REMOVE
                • JSON_REPLACE
                • JSON_SET
                • JSON_UNQUOTE
              • Return JSON text property functions
                • JSON_DEPTH
                • JSON_LENGTH
                • JSON_TYPE
                • JSON_VALID
              • JSON_TABLE
              • JSON utility functions
                • JSON_PRETTY
                • JSON_STORAGE_SIZE
              • JSON aggregate functions
                • JSON_ARRAYAGG
                • JSON_OBJECTAGG
              • JSON schema validation functions
                • JSON_SCHEMA_VALID
                • JSON_SCHEMA_VALIDATION_REPORT
            • XML functions
              • Overview
              • Functions for querying XML data
                • EXTRACTVALUE
              • Functions for modifying XML data
                • UPDATEXML
            • Spatial functions
              • Overview
              • Functions that create geometry values
              • Spatial operation functions
              • Spatial relation functions
              • Geometry property functions
              • Geometry format conversion functions
              • Spatial analysis functions
              • Spatial constructor functions
              • Spatial accessor functions
              • Spatial format conversion functions
              • Geometry processing functions
              • _ST_GeoHash
            • Performance schema functions
              • FORMAT_BYTES
              • FORMAT_PICO_TIME
            • Lock functions
              • Overview
              • GET_LOCK
              • IS_FREE_LOCK
              • IS_USED_LOCK
              • RELEASE_ALL_LOCKS()
              • RELEASE_LOCK
            • GTID function
              • GTID_SUBSET()
              • GTID_SUBTRACT()
              • WAIT_FOR_EXECUTED_GTID_SET()
              • WAIT_UNTIL_SQL_THREAD_AFTER_GTIDS()
            • Other functions
              • ANY_VALUE
              • BIN_TO_UUID
              • COALESCE
              • DEFAULT
              • NAME_CONST
              • INET_ATON
              • INET_NTOA
              • INET6_ATON
              • INET6_NTOA
              • IS_IPV4
              • IS_IPV4_COMPAT
              • IS_IPV6
              • IS_UUID
              • NVL
              • UUID_TO_BIN
              • SLEEP
              • UUID
              • UUID_SHORT
              • VALUES
            • Audit functions
              • Overview
              • AUDIT_LOG_FILTER_REMOVE_FILTER
              • AUDIT_LOG_FILTER_REMOVE_USER
              • AUDIT_LOG_FILTER_SET_FILTER
              • AUDIT_LOG_FILTER_SET_USER
          • Queries and subqueries
            • Overview
            • Subqueries
            • Joins
          • SQL statements
            • General syntax
            • Common table expressions
            • ALTER COMPILE
            • ALTER DATABASE
            • ALTER EXTERNAL TABLE
            • ALTER OUTLINE
            • ALTER SEQUENCE
            • ALTER/CHANGE/MODIFY EXTERNAL_STORAGE_DEST
            • MAJOR and MINOR
            • ALTER SERVER
            • ALTER TABLE
            • ALTER TABLEGROUP
            • ALTER TABLESPACE
            • ALTER USER
            • ALTER VIEW
            • ALTER EVENT
            • ALTER LOGFILE GROUP
            • ANALYZE
            • CACHE INDEX
            • CHECK TABLE
            • CREATE DATABASE LINK
            • CREATE DATABASE
            • CREATE EXTERNAL TABLE
            • CREATE INDEX
            • CREATE OUTLINE
            • CREATE FORMAT OUTLINE
            • CREATE LOGFILE GROUP
            • DROP RESTORE POINT
            • CREATE ROLE
            • CREATE SEQUENCE
            • CREATE SERVER
            • CREATE TABLE
            • CREATE TABLEGROUP
            • CREATE TABLESPACE
            • CREATE USER
            • CREATE VIEW
            • CHECKSUM TABLE
            • CREATE EVENT
            • DEALLOCATE PREPARE
            • DROP DATABASE LINK
            • DELETE
            • DESCRIBE
            • DROP DATABASE
            • DROP EVENT
            • DROP INDEX
            • DROP OUTLINE
            • DROP FORMAT OUTLINE
            • DROP ROLE
            • DROP TABLE
            • DROP TABLEGROUP
            • DROP TABLESPACE
            • DROP SEQUENCE
            • DROP SERVER
            • DROP USER
            • DROP VIEW
            • DROP LOGFILE GROUP
            • EXECUTE
            • EXPLAIN
            • FLASHBACK
            • FLUSH
            • GRANT
            • HELP
            • HANDLER
            • INSERT
            • INSTALL PLUGIN
            • KILL
            • LOAD DATA
            • LOAD INDEX INTO CACHE
            • LOCK TABLES
            • OPTIMIZE
            • PREPARE
            • PURGE
            • PURGE RECYCLEBIN
            • RENAME USER
            • RENAME TABLE
            • REPLACE
            • REPAIR TABLE
            • REVOKE
            • SAVEPOINT
            • SCHEMA
            • SELECT INTO
            • SELECT
              • SELECT statement
              • JOIN clause
              • OVER clause
              • UNION clause
            • SET DEFAULT ROLE
            • SET
            • SET CHARSET
            • SET NAMES
            • SET PASSWORD
            • SET ROLE
            • SET TRANSACTION
            • SHOW
            • TRANSACTION
            • TRUNCATE TABLE
            • UNLOCK TABLES
            • UPDATE
            • USE
            • UNINSTALL PLUGIN
            • VALUES
            • XA transaction
          • DDL feature
            • Overview
            • Online and offline DDL operations
            • Index operations
            • Primary key operations
            • Column operations
            • Generated column operations
            • Foreign key operations
            • Table operations
            • Partition operations
            • Column type change rules
            • Conversion rules for numeric data types
        • User tenants (Oracle mode)
          • Introduction to SQL
          • Pseudo columns
            • Overview
            • Hierarchical query pseudocolumns
            • Sequence pseudo columns
            • ORA_ROWSCN pseudocolumn
            • ROWNUM pseudocolumn
            • ROWID pseudocolumn
          • Basic elements
            • Built-in data types
              • Overview
              • Character data types
                • Overview
                • CHAR data type
                • NCHAR data type
                • NVARCHAR2 data type
                • VARCHAR2 data type
                • VARCHAR data type
              • Numeric data types
                • Overview
                • NUMBER data type
                • FLOAT data type
                • Floating-point numbers
                • Precedence of numeric data types
              • Datetime and interval data types
                • Overview
                • DATE data type
                • TIMESTAMP data type
                • TIMESTAMP WITH TIME ZONE data type
                • TIMESTAMP WITH LOCAL TIME ZONE data type
                • INTERVAL YEAR TO MONTH data type
                • INTERVAL DAY TO SECOND data type
                • Calculation of dates, timestamps, and intervals
              • RAW data type
              • Large object data types
                • Overview
                • BLOB data type
                • CLOB data type
              • Rowid data types
              • User-defined data types
              • Any types
              • JSON data types
                • Overview
                • Create a column of the JSON data type
                • Query JSON data
                • Conversion rules for JSON data types
              • XML data types
                • Overview
                • XML data definition
                • Create a column of the XMLType data type
                • Query XMLType data
                • Conversion of the XMLType data type
              • Spatial data types
                • Overview
                • Create a spatial data column
                • SDO_GEOMETRY attribute access
            • Data type comparison rules
              • Overview
              • Numeric value comparison rules
              • Date value comparison rules
              • Character value comparison rules
              • Data type precedence
              • Data type conversion rules
              • Security considerations for data conversion
            • Literals
              • Overview
              • Text literals
              • Numeric literals
              • Datetime literals
                • Date literals
                • Timestamp literals
              • Interval literals
            • Format model
              • Overview
              • Number format models
              • Datetime format models
              • RR datetime format element
              • String-to-date conversion rules
            • NULL value
              • Overview
              • NULLs in SQL functions
              • NULLs in comparison conditions
              • NULLs in conditional expressions
            • Annotations
              • Overview
              • Comments on SQL statements
              • Comments on schema and non-schema objects
              • Hints
                • Overview
                • Hint list
                  • Hints related to access path
                  • Hints related to join orders
                  • Hints related to joins
                  • Hints related to parallel execution
                  • Hints related to query strategies
                  • Hints related to query conversion
                  • Other hints
            • Database objects
              • Schema objects
              • Non-schema objects
            • Database naming conventions
              • Overview
              • Suggestions on schema object names
            • Database object reference methods
              • Overview
              • Reference schema objects
              • Reference objects in a remote database
                • Create a DBLink
                • Reference a DBLink
              • Access partitioned tables and indexes
              • Reference an attribute or method of an object type
            • Character sets and collations
          • Operators
            • Overview of operators
            • Operator precedence
            • Arithmetic operators
            • Concatenation operator
            • Hierarchical query operators
            • Set operators
            • COLLATE operator
          • Functions
            • Overview
            • Single-row functions
              • Numeric functions
                • ABS
                • ACOS
                • ASIN
                • ATAN
                • ATAN2
                • BITAND
                • CEIL
                • COS
                • COSH
                • EXP
                • FLOOR
                • GENERATOR
                • LN
                • LOG
                • MOD
                • NANVL
                • NORMAL
                • POWER
                • REMAINDER
                • ROUND
                • RANDOM
                • RANDSTR
                • SIGN
                • SIN
                • SINH
                • SQRT
                • TAN
                • TANH
                • TRUNC
                • UNIFORM
                • WIDTH_BUCKET
                • ZIPF
              • String functions that return a string
                • CHR
                • CONCAT
                • INITCAP
                • LOWER
                • LPAD
                • LTRIM
                • NLS_LOWER
                • NLSSORT
                • NLS_UPPER
                • REGEXP_REPLACE
                • REGEXP_SUBSTR
                • REPLACE
                • RPAD
                • RTRIM
                • SUBSTR
                • TRANSLATE
                • TRANSLATE ... USING
                • TRIM
                • UPPER
              • String functions that return numbers
                • ASCII
                • INSTR
                • LENGTH
                • REGEXP_COUNT
                • REGEXP_INSTR
              • Datetime functions
                • ADD_MONTHS
                • CURRENT_DATE
                • CURRENT_TIMESTAMP
                • DBTIMEZONE
                • EXTRACT(datetime)
                • FROM_TZ
                • LAST_DAY
                • LOCALTIMESTAMP
                • MONTHS_BETWEEN
                • NEXT_DAY
                • NUMTODSINTERVAL
                • NUMTOYMINTERVAL
                • ROUND (date)
                • SESSIONTIMEZONE
                • SYS_EXTRACT_UTC
                • SYSDATE
                • SYSTIMESTAMP
                • TO_CHAR(datetime)
                • TO_DSINTERVAL
                • TO_TIMESTAMP
                • TO_TIMESTAMP_TZ
                • TO_YMINTERVAL
                • TRUNC (date)
                • TZ_OFFSET
              • Generic comparison functions
                • GREATEST
                • LEAST
              • Conversion functions
                • ASCIISTR
                • CAST
                • CHARTOROWID
                • CONVERT
                • HEXTORAW
                • NUMTODSINTERVAL
                • NUMTOYMINTERVAL
                • RAWTOHEX
                • ROWIDTOCHAR
                • ROWIDTONCHAR
                • SCN_TO_TIMESTAMP
                • TIMESTAMP_TO_SCN
                • TO_BINARY_DOUBLE
                • TO_BINARY_FLOAT
                • TO_BLOB
                • TO_CHAR(character)
                • TO_CHAR(datetime)
                • TO_CHAR(number)
                • TO_CLOB
                • TO_DATE
                • TO_DSINTERVAL
                • TO_MULTI_BYTE
                • TO_NUMBER
                • TO_NCHAR(character)
                • TO_NCHAR(datetime)
                • TO_NCHAR(number)
                • TO_PINYIN
                • TO_SINGLE_BYTE
                • TO_TIMESTAMP
                • TO_TIMESTAMP_TZ
                • TO_YMINTERVAL
                • UNISTR
              • Encoding and decoding functions
                • DECODE
                • DUMP
                • ORA_HASH
                • VSIZE
              • Null value related functions
                • COALESCE
                • LNNVL
                • NANVL
                • NULLIF
                • NVL
                • NVL2
              • Environment and identifier functions
                • SYS_CONTEXT
                • SYS_GUID
                • UID
                • USER
                • USERENV
                • OB_VERSION
              • Hierarchical functions
                • SYS_CONNECT_BY_PATH
              • JSON functions
                • Overview
                • Create JSON text functions
                  • JSON_ARRAY
                  • JSON_OBJECT
                  • JSON_ARRAYAGG
                  • JSON_OBJECTAGG
                • Query JSON text functions
                  • JSON_VALUE
                  • JSON_QUERY
                  • JSON_EXISTS
                  • JSON_TABLE
                • Validate JSON text functions
                  • JSON_EQUAL
                • Modify JSON text functions
                  • JSON_MERGEPATCH
              • XML functions
                • Overview
                • Construct XMLType data functions
                  • XMLAGG
                  • XMLATTRIBUTES
                  • XMLELEMENT
                  • XMLPARSE
                  • XMLCONCAT
                  • XMLFOREST
                • Query XMLType data functions
                  • EXTRACT
                  • EXTRACTVALUE
                  • XMLSERIALIZE
                  • XMLCAST
                  • XMLTABLE
                  • XMLSEQUENCE
                  • EXISTSNODE
                • Modify XMLType data functions
                  • UPDATEXML
                  • INSERTCHILDXML
                  • DELETEXML
              • Spatial-functions
                • Overview
                • SDO_GEOMETRY constructor functions
                • SDO_GEOMETRY query functions
                • SDO_GEOMETRY format conversion functions
            • Aggregate functions
              • APPROX_COUNT_DISTINCT
              • AVG
              • CORR
              • COUNT
              • COVAR_POP
              • COVAR_SAMP
              • CUME_DIST
              • DENSE_RANK
              • GROUPING
              • KEEP
              • LISTAGG
              • MAX
              • MEDIAN
              • MIN
              • PERCENT_RANK
              • PERCENTILE_CONT
              • PERCENTILE_DISC
              • RANK
              • REGR_(Linear Regression)
              • ROLLUP
              • STDDEV
              • STDDEV_POP
              • STDDEV_SAMP
              • SUM
              • VAR_POP
              • VAR_SAMP
              • VARIANCE
              • WMSYS.WM_CONCAT/WM_CONCAT
              • GROUP_ID
              • GROUPING_ID
            • Analysis functions
              • Analytic functions
              • AVG
              • CORR
              • COUNT
              • COVAR_POP
              • COVAR_SAMP
              • CUME_DIST
              • DENSE_RANK
              • FIRST_VALUE
              • KEEP
              • LAG
              • LAST_VALUE
              • LEAD
              • LISTAGG
              • MAX
              • MEDIAN
              • MIN
              • NTILE
              • NTH_VALUE
              • PERCENT_RANK
              • PERCENTILE_CONT
              • PERCENTILE_DISC
              • RANK
              • RATIO_TO_REPORT
              • REGR_(Linear Regression)
              • ROW_NUMBER
              • STDDEV
              • STDDEV_POP
              • STDDEV_SAMP
              • SUM
              • VAR_POP
              • VAR_SAMP
              • VARIANCE
              • WMSYS.WM_CONCAT/WM_CONCAT
            • Table functions
              • Table function
          • Expressions
            • Overview
            • Simple expressions
            • Compound expressions
            • Case expressions
            • Column expressions
            • CURSOR expressions
            • Datetime expressions
            • Function expressions
            • Interval expressions
            • Scalar subquery expressions
            • Type constructor expressions
            • Expression list
          • Conditions
            • Overview
            • Condition precedence
            • Comparison conditions
            • Floating-point conditions
            • Logical conditions
            • Pattern-matching conditions
            • NULL conditions
            • Compound conditions
            • BETWEEN condition
            • EXISTS condition
            • IN condition
          • Queries and subqueries
            • Overview
            • Simple queries
            • Hierarchical queries
            • Composite queries
            • Join queries
            • Subqueries
            • Lateral derived tables
            • DUAL table query
          • SQL statements
            • DDL
              • ALTER EXTERNAL TABLE
              • ALTER INDEX
              • ALTER KEYSTORE
              • ALTER OUTLINE
              • ALTER PROFILE
              • ALTER ROLE
              • ALTER SEQUENCE
              • ALTER SESSION
              • ALTER SYSTEM FLUSH PLAN CACHE
              • ALTER/CHANGE/MODIFY EXTERNAL_STORAGE_DEST
              • ALTER SYSTEM PARAMETER
              • ALTER TABLE
              • ALTER TABLEGROUP
              • ALTER USER
              • COMMENT
              • CREATE CONTEXT
              • CREATE DIRECTORY
              • CREATE DATABASE LINK
              • CREATE EXTERNAL TABLE
              • CREATE INDEX
              • CREATE KEYSTORE
              • CREATE OUTLINE
              • CREATE PROFILE
              • CREATE FORMAT OUTLINE
              • CREATE ROLE
              • CREATE SEQUENCE
              • CREATE SYNONYM
              • CREATE TABLE
              • CREATE TABLEGROUP
              • CREATE TABLESPACE
              • CREATE USER
              • CREATE VIEW
              • DROP CONTEXT
              • DROP DATABASE LINK
              • DROP DIRECTORY
              • DROP INDEX
              • DROP OUTLINE
              • DROP PROFILE
              • DROP FORMAT OUTLINE
              • DROP ROLE
              • DROP SEQUENCE
              • DROP SYNONYM
              • DROP TABLE
              • DROP TABLEGROUP
              • DROP TABLESPACE
              • DROP USER
              • DROP VIEW
              • RENAME
              • TRUNCATE TABLE
              • MAJOR and MINOR
            • DML
              • DELETE
              • INSERT
              • MERGE
              • PURGE
              • EXPLAIN
              • SELECT
                • SIMPLE SELECT
                • Set-based SELECT
                • WITH CLAUSE
              • UPDATE
            • DCL
              • ANALYZE
              • ALTER SYSTEM KILL SESSION
              • AUDIT
              • COMMIT
              • FLASHBACK TABLE BEFORE DROP
              • GRANT
              • KILL
              • LOAD DATA
              • LOCK TABLE
              • REVOKE
              • ROLLBACK
              • SAVEPOINT
              • SET NAMES
              • SET PASSWORD
              • SET ROLE
              • SET VARIABLE
              • SHOW
              • SHRINK
              • TRANSACTION
          • DDL feature
            • Overview
            • Online and offline DDL operations
            • Index operations
            • Primary key operations
            • Column operations
            • Generated column operations
            • Foreign key operations
            • Table operations
            • Partition operations
            • Column type change rules
            • Conversion rules for numeric data types
      • SQL specifications and practices
        • Limitations on writing SQL statements
        • SQL writing specifications
          • SELECT statements
          • DML statement writing standards
          • DDL statements
          • Multi-table join
          • Table scan
          • Transactions
          • Cache
          • Hint
          • Other related specifications
        • SQL statement examples
          • Implicit data type conversion
          • Join tables
          • Read with weak consistency
          • Pagination
      • PL reference
        • What is PL
          • PL overview
          • Main features of PL
          • PL architecture
        • PL reference (MySQL mode)
          • Syntax of PL stored programs
          • PL stored procedures
            • Overview
            • Variables in stored programs
            • Stored procedures
            • Stored objects and privilege management
            • Stored functions
            • Triggers
            • Events
            • Limitations on stored programs
          • PL cursors
            • Overview
            • Cursor execution process
            • Limitations on server cursors
          • PL conditional control statements
            • CASE
            • IF
            • ITERATE
            • LEAVE
            • LOOP
            • REPEAT
            • RETURN
            • WHILE
          • PL data manipulation statements
            • CALL
            • DO
          • PL data definition statements
            • ALTER FUNCTION
            • ALTER PROCEDURE
            • CREATE FUNCTION
            • CREATE PROCEDURE
            • CREATE TRIGGER
            • DROP FUNCTION
            • DROP PROCEDURE
            • DROP TRIGGER
          • PL database management statements
            • SHOW CREATE FUNCTION
            • SHOW CREATE PROCEDURE
            • SHOW CREATE TRIGGER
            • SHOW FUNCTION STATUS
            • SHOW PROCEDURE STATUS
            • SHOW TRIGGERS
          • PL related dictionary views
            • INFORMATION_SCHEMA PARAMETERS
            • INFORMATION_SCHEMA ROUTINES
            • INFORMATION_SCHEMA TRIGGERS
          • PL exception handling
            • Overview
            • DECLARE ... CONDITION
            • DECLARE ... HANDLER
            • GET DIAGNOSTICS
            • RESIGNAL
            • SIGNAL
            • Procedure scope
            • Diagnostics area
            • Exception handling and OUT/INOUT parameters
            • Limitations on exception handling
          • PL system packages
            • Overview of system packages
            • DBMS_RESOURCE_MANAGER
              • Overview
              • CREATE_CONSUMER_GROUP
              • CREATE_PLAN
              • CREATE_PLAN_DIRECTIVE
              • DELETE_CONSUMER_GROUP
              • DELETE_PLAN
              • DELETE_PLAN_DIRECTIVE
              • SET_CONSUMER_GROUP_MAPPING
              • UPDATE_PLAN_DIRECTIVE
            • DBMS_STATS
              • Overview
              • ALTER_STATS_HISTORY_RETENTION
              • CREATE_STAT_TABLE
              • DELETE_COLUMN_STATS
              • DELETE_INDEX_STATS
              • DELETE_TABLE_STATS
              • DELETE_SCHEMA_STATS
              • DELETE_SCHEMA_PREFS
              • DELETE_SYSTEM_STATS
              • DELETE_TABLE_PREFS
              • DROP_STAT_TABLE
              • EXPORT_COLUMN_STATS
              • EXPORT_INDEX_STATS
              • EXPORT_TABLE_STATS
              • EXPORT_SCHEMA_STATS
              • FLUSH_DATABASE_MONITORING_INFO
              • GATHER_INDEX_STATS
              • GATHER_TABLE_STATS
              • GATHER_SCHEMA_STATS
              • GATHER_SYSTEM_STATS
              • GET_STATS_HISTORY_AVAILABILITY
              • GET_STATS_HISTORY_RETENTION
              • GET_PARAM
              • GET_PREFS
              • IMPORT_INDEX_STATS
              • IMPORT_COLUMN_STATS
              • IMPORT_TABLE_STATS
              • IMPORT_SCHEMA_STATS
              • LOCK_PARTITION_STATS
              • LOCK_SCHEMA_STATS
              • LOCK_TABLE_STATS
              • RESTORE_TABLE_STATS
              • RESTORE_SCHEMA_STATS
              • RESET_GLOBAL_PREF_DEFAULTS
              • RESET_PARAM_DEFAULTS
              • PURGE_STATS
              • SET_COLUMN_STATS
              • SET_INDEX_STATS
              • SET_TABLE_STATS
              • SET_GLOBAL_PREFS
              • SET_PARAM
              • SET_SCHEMA_PREFS
              • SET_SYSTEM_STATS
              • SET_TABLE_PREFS
              • UNLOCK_PARTITION_STATS
              • UNLOCK_SCHEMA_STATS
              • UNLOCK_TABLE_STATS
            • DBMS_UDR
              • Overview
              • CREATE_RULE
              • DISABLE_RULE
              • ENABLE_RULE
              • REMOVE_RULE
            • DBMS_WORKLOAD_REPOSITORY
              • Overview
              • ASH_REPORT
              • CREATE_SNAPSHOT
              • DROP_SNAPSHOT_RANGE
              • MODIFY_SNAPSHOT_SETTINGS
            • DBMS_XPLAN
              • Overview
              • DISPLAY_ACTIVE_SESSION_PLAN
              • DISPLAY_CURSOR
              • DISPLAY
              • DISABLE_OPT_TRACE
              • DISPLAY_SQL_PLAN_BASELINE
              • ENABLE_OPT_TRACE
              • SET_OPT_TRACE_PARAMETER
            • DBMS_BALANCE
              • Overview of DBMS_BALANCE
              • SET_BALANCE_WEIGHT
              • CLEAR_BALANCE_WEIGHT
              • TRIGGER_PARTITION_BALANCE
            • DBMS_LIMIT_CALCULATOR
              • Overview
              • CALCULATE_MIN_PHY_RES_NEEDED_BY_UNIT
              • CALCULATE_MIN_PHY_RES_NEEDED_BY_LOGIC_RES
              • CALCULATE_MIN_PHY_RES_NEEDED_BY_STANDBY_TENANT
            • DBMS_DATA_DICT
              • DBMS_DATA_DICT
          • Reserved and non-reserved PL keywords
        • PL reference (Oracle mode)
          • PL language basics
            • Character sets
            • Lexical elements
            • Declaration
            • Reference identifiers
            • Identifier scope and visibility
            • Assignment
            • Expressions
            • PL blocks
            • Subprograms
            • Error-reporting functions
          • PL data types
            • Overview
            • SQL data types
            • LOB data types
            • BOOLEAN type
            • User-defined subtypes
            • PLS_INTEGER and BINARY_INTEGER
            • Arrays
            • PL JSON data types
          • PL process control
            • Overview
            • Conditional control
            • Loop control
            • Sequential control
          • PL collections and records
            • Overview
            • Collections
            • Associative arrays
            • Varrays
            • Nested tables
            • Collection constructors
            • Collection methods
              • Overview
              • DELETE method
              • TRIM method
              • EXTEND method
              • EXISTS method
              • FIRST and LAST methods
              • COUNT method
              • LIMIT method
              • PRIOR and NEXT methods
            • RECORD
            • Insert records into a table and update a table by using records
            • Create and call a subprogram with record type parameters
          • PL static SQL
            • Overview
            • Cursors
              • Overview
              • Cursor attributes
              • Implicit cursors
              • Explicit cursors
              • Cursor variables
              • Use a FOR loop to traverse a cursor
              • Modify and drop a cursor
            • Transaction processing and control
            • Autonomous transactions
              • Overview
              • Control autonomous transactions
              • Autonomous triggers
              • Call autonomous functions from SQL statements
            • FORALL and BULK COLLECT
          • PL dynamic SQL
            • Overview
            • Execute dynamic SQL
            • DBMS_SQL system package
          • PL stored procedures and functions
            • Overview
            • Create a stored procedure
            • Create a function
            • Manage stored procedures and functions
            • Privilege control
            • Pipeline functions
              • Overview
              • Create a pipelined table function
              • Application
            • User-defined functions
              • Overview
              • Interface for user-defined aggregate functions
              • Create a user-defined aggregate function
              • Use user-defined aggregate functions
            • Collection of stored procedure information and its impact on parallel execution of SQL statements
            • PL Database Link
          • PL triggers
            • Overview
            • Create a DML trigger
            • Modify and drop a trigger
            • Disable or enable a trigger
            • Query trigger information
            • INSTEAD OF DML triggers
            • Composite DML triggers
            • System triggers
          • PL packages
            • Overview
            • Create a package
            • Overloaded programs in a package
            • Manage packages
            • Definition of the PL environment by the STANDARD package
          • PL exception handling
            • Overview
            • Compile-time warnings
            • Exception types
            • Exception handling processes
          • DDL operations on stored PL units
            • Overview
            • ALTER FUNCTION
            • ALTER PACKAGE
            • ALTER PROCEDURE
            • ALTER TRIGGER
            • ALTER TYPE
            • CREATE FUNCTION
            • CREATE PACKAGE
            • CREATE PACKAGE BODY
            • CREATE PROCEDURE
            • CREATE TRIGGER
            • CREATE TYPE
            • CREATE TYPE BODY
            • DROP FUNCTION
            • DROP PACKAGE
            • DROP PROCEDURE
            • DROP TRIGGER
            • DROP TYPE
            • DROP TYPE BODY
          • PL label security package
            • Overview
            • SA_SYSDBA policy management package
              • Overview
              • SA_SYSDBA.ALTER_POLICY
              • SA_SYSDBA.CREATE_POLICY
              • SA_SYSDBA.DROP_POLICY
            • SA_COMPONENTS label component package
              • Overview
              • SA_COMPONENTS.ALTER_LEVEL
              • SA_COMPONENTS.CREATE_LEVEL
              • SA_COMPONENTS.DROP_LEVEL
            • SA_LABEL_ADMIN label management package
              • Overview
              • SA_LABEL_ADMIN.ALTER_LABEL
              • SA_LABEL_ADMIN.CREATE_LABEL
              • SA_LABEL_ADMIN.DROP_LABEL
            • SA_POLICY_ADMIN policy management package
              • Overview
              • SA_POLICY_ADMIN.APPLY_TABLE_POLICY
              • SA_POLICY_ADMIN.DISABLE_TABLE_POLICY
              • SA_POLICY_ADMIN.ENABLE_TABLE_POLICY
              • SA_POLICY_ADMIN.REMOVE_TABLE_POLICY
            • SA_USER_ADMIN user label management package
              • Overview
              • SA_USER_ADMIN.SET_LEVELS
            • SA_SESSION session management package
              • Overview
              • SA_SESSION.LABEL
              • SA_SESSION.RESTORE_DEFAULT_LABELS
              • SA_SESSION.ROW_LABEL
              • SA_SESSION.SET_LABEL
              • SA_SESSION.SET_ROW_LABEL
          • PL system package (Oracle mode)
            • Overview
            • DBMS_APPLICATION_INFO
              • Overview
              • READ_CLIENT_INFO
              • READ_MODULE
              • SET_ACTION
              • SET_CLIENT_INFO
              • SET_MODULE
            • DBMS_AUDIT_MGMT
              • Overview
              • CLEAN_AUDIT_TRAIL
              • CREATE_PURGE_JOB
              • DROP_PURGE_JOB
              • SET_LAST_ARCHIVE_TIMESTAMP
              • SET_PURGE_JOB_STATUS
            • DBMS_BALANCE
              • Overview of DBMS_BALANCE
              • SET_BALANCE_WEIGHT
              • CLEAR_BALANCE_WEIGHT
              • TRIGGER_PARTITION_BALANCE
            • DBMS_CRYPTO
              • Overview
              • ENCRYPT
              • DECRYPT
              • HASH
            • DBMS_DEBUG
              • Overview
              • ATTACH_SESSION
              • CONTINUE
              • DEBUG_ON
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              • DETACH_SESSION
              • DELETE_BREAKPOINT
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              • ENABLE_BREAKPOINT
              • GET_VALUE
              • GET_VALUES
              • GET_RUNTIME_INFO
              • GET_TIMEOUT_BEHAVIOUR
              • INITIALIZE
              • PROBE_VERSION
              • PRINT_BACKTRACE
              • SET_TIMEOUT
              • SET_TIMEOUT_BEHAVIOUR
              • SET_BREAKPOINT
              • SHOW_BREAKPOINTS
            • DBMS_DESCRIBE
              • Overview
              • DESCRIBE_PROCEDURE
            • DBMS_JOB
              • Overview
              • BROKEN
              • CHANGE
              • ZONE
              • INTERVAL
              • NEXT_DATE
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              • RUN
              • SUBMIT
              • USER_EXPORT
              • WHAT
            • DBMS_LOB
              • Overview
              • APPEND
              • CLOSE
              • COPY
              • CREATETEMPORARY
              • ERASE
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              • GETLENGTH
              • ISOPEN
              • INSTR
              • ISTEMPORARY
              • OPEN
              • READ
              • SUBSTR
              • TRIM
              • WRITE
              • WRITEAPPEND
            • DBMS_LOCK
              • Overview
              • ALLOCATE_UNIQUE
              • ALLOCATE_UNIQUE_AUTONOMOUS
              • REQUEST
              • SLEEP
            • DBMS_METADATA
              • Overview
              • GET_DDL
              • GET_TABLE_INDEX_DDL
            • DBMS_MONITOR
              • Overview
              • OB_SESSION_TRACE_ENABLE
              • OB_SESSION_TRACE_DISABLE
              • OB_CLIENT_ID_TRACE_ENABLE
              • OB_CLIENT_ID_TRACE_DISABLE
              • OB_MOD_ACT_TRACE_ENABLE
              • OB_MOD_ACT_TRACE_DISABLE
              • OB_TENANT_TRACE_ENABLE
              • OB_TENANT_TRACE_DISABLE
            • DBMS_OUTPUT
              • Overview
              • DISABLE
              • ENABLE
              • GET_LINE
              • GET_LINES
              • NEW_LINE
              • PUT
              • PUT_LINE
            • DBMS_PLAN_CACHE
              • Overview
              • PURGE
            • DBMS_RANDOM
              • Overview
              • INITIALIZE
              • NORMAL
              • RANDOM
              • SEED
              • STRING
              • TERMINATE
              • VALUE
            • DBMS_RESOURCE_MANAGER
              • Overview
              • CREATE_CONSUMER_GROUP
              • CREATE_PLAN
              • CREATE_PLAN_DIRECTIVE
              • DELETE_CONSUMER_GROUP
              • DELETE_PLAN
              • DELETE_PLAN_DIRECTIVE
              • SET_CONSUMER_GROUP_MAPPING
              • UPDATE_PLAN_DIRECTIVE
            • DBMS_SCHEDULER
              • Overview
              • CREATE_JOB
              • CREATE_PROGRAM
              • DEFINE_PROGRAM_ARGUMENT
              • DISABLE
              • DROP_JOB
              • DROP_PROGRAM
              • ENABLE
              • GENERATE_JOB_NAME
              • RUN_JOB
              • SET_ATTRIBUTE
              • SET_JOB_ARGUMENT_VALUE
              • DISABLE
              • STOP_JOB
              • ENABLE
            • DBMS_SESSION
              • Overview
              • CLEAR_ALL_CONTEXT
              • CLEAR_CONTEXT
              • CLEAR_IDENTIFIER
              • RESET_PACKAGE
              • SET_CONTEXT
              • SET_IDENTIFIER
            • DBMS_SQL
              • Overview
              • BIND_VARIABLE
              • CLOSE_CURSOR
              • COLUMN_VALUE
              • DEFINE_COLUMN
              • DEFINE_ARRAY
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              • EXECUTE
              • EXECUTE_AND_FETCH
              • FETCH_ROWS
              • IS_OPEN
              • LAST_ERROR_POSITION
              • OPEN_CURSOR
              • PARSE
              • VARIABLE_VALUE
            • DBMS_STATS
              • Overview
              • ALTER_STATS_HISTORY_RETENTION
              • CREATE_STAT_TABLE
              • DELETE_COLUMN_STATS
              • DELETE_INDEX_STATS
              • DELETE_TABLE_STATS
              • DELETE_SCHEMA_STATS
              • DELETE_SCHEMA_PREFS
              • DELETE_SYSTEM_STATS
              • DELETE_TABLE_PREFS
              • DROP_STAT_TABLE
              • EXPORT_COLUMN_STATS
              • EXPORT_INDEX_STATS
              • EXPORT_TABLE_STATS
              • EXPORT_SCHEMA_STATS
              • FLUSH_DATABASE_MONITORING_INFO
              • GATHER_INDEX_STATS
              • GATHER_TABLE_STATS
              • GATHER_SCHEMA_STATS
              • GATHER_SYSTEM_STATS
              • GET_STATS_HISTORY_AVAILABILITY
              • GET_STATS_HISTORY_RETENTION
              • GET_PARAM
              • GET_PREFS
              • IMPORT_INDEX_STATS
              • IMPORT_COLUMN_STATS
              • IMPORT_TABLE_STATS
              • IMPORT_SCHEMA_STATS
              • LOCK_PARTITION_STATS
              • LOCK_SCHEMA_STATS
              • LOCK_TABLE_STATS
              • RESTORE_TABLE_STATS
              • RESTORE_SCHEMA_STATS
              • RESET_GLOBAL_PREF_DEFAULTS
              • RESET_PARAM_DEFAULTS
              • PURGE_STATS
              • SET_COLUMN_STATS
              • SET_INDEX_STATS
              • SET_TABLE_STATS
              • SET_GLOBAL_PREFS
              • SET_PARAM
              • SET_SCHEMA_PREFS
              • SET_SYSTEM_STATS
              • SET_TABLE_PREFS
              • UNLOCK_PARTITION_STATS
              • UNLOCK_SCHEMA_STATS
              • UNLOCK_TABLE_STATS
              • COPY_TABLE_STATS
            • DBMS_UDR
              • Overview
              • CREATE_RULE
              • DISABLE_RULE
              • ENABLE_RULE
              • REMOVE_RULE
            • DBMS_UTILITY
              • Overview of DBMS_UTILITY
              • ACTIVE_INSTANCES
              • CURRENT_INSTANCE
              • DB_VERSION
              • FORMAT_CALL_STACK
              • FORMAT_ERROR_BACKTRACE
              • FORMAT_ERROR_STACK
              • GET_ENDIANNESS
              • GET_HASH_VALUE
              • GET_PARAMETER_VALUE
              • GET_SQL_HASH
              • GET_TIME
              • IS_BIT_SET
              • IS_CLUSTER_DATABASE
              • NAME_RESOLVE
              • NAME_TOKENIZE
              • OLD_CURRENT_SCHEMA
              • OLD_CURRENT_USER
              • PORT_STRING
              • TABLE_TO_COMMA
              • COMMA_TO_TABLE
            • DBMS_WORKLOAD_REPOSITORY
              • Overview
              • ASH_REPORT
            • DBMS_XA
              • Overview
              • DBMS_XA constants
              • DBMS_XA_XID object type
              • DIST_TXN_SYNC
              • XA_COMMIT
              • XA_END
              • XA_FORGET
              • XA_GETLASTOER
              • XA_PREPARE
              • XA_RECOVER
              • XA_ROLLBACK
              • XA_SETTIMEOUT
              • XA_START
            • DBMS_XMLGEN
              • Overview
              • CONVERT
            • DBMS_PROFILER
              • Overview
              • START_PROFILER
              • STOP_PROFILER
              • PAUSE_PROFILER
              • RESUME_PROFILER
              • FLUSH_DATA
              • GET_VERSION
              • INTERNAL_VERSION_CHECK
              • ROLLUP_UNIT
              • ROLLUP_RUN
              • OB_INIT_OBJECTS
              • OB_DROP_OBJECTS
            • DBMS_XPLAN
              • Overview
              • DISPLAY_ACTIVE_SESSION_PLAN
              • DISPLAY_CURSOR
              • DISPLAY
              • DISABLE_OPT_TRACE
              • DISPLAY_SQL_PLAN_BASELINE
              • ENABLE_OPT_TRACE
              • SET_OPT_TRACE_PARAMETER
            • DBMS_DDL
              • Overview of DBMS_DDL
              • WRAP
              • CREATE_WRAPPED
            • ODCIConst
              • Overview
              • ODCIArgDesc.ArgType
              • ODCIEnv.CallProperty
              • ODCIEnv.Envflags
              • ODCIIndexAlter
              • ODCIIndexAlter parameter alter_option
              • ODCIIndexInfo.IndexInfoFlags
              • ODCIIndexInfo.IndexParaDegree
              • ODCIPredInfo.Flags
              • ODCIQueryInfo.Flags
              • ODCIStatsOptions.Flags
              • ODCIStatsOptions.Options
              • Return Status
              • ScnFlg
            • UTL_ENCODE
              • Overview
              • BASE64_DECODE
              • BASE64_ENCODE
            • UTL_FILE
              • Overview
              • FCLOSE
              • FFLUSH
              • FOPEN
              • FGETPOS
              • FREMOVE
              • FRENAME
              • FSEEK
              • NEW_LINE
              • GET_LINE
              • PUT
              • PUT_LINE
            • UTL_I18N
              • Overview
              • RAW_TO_CHAR
              • STRING_TO_RAW
            • UTL_RECOMP
              • Overview
              • RECOMP_PARALLEL
              • RECOMP_SERIAL
              • TRUNCATE_UTL_RECOMP_SKIP_LIST
              • POPULATE_UTL_RECOMP_SKIP_LIST
              • PARALLEL_SLAVE
            • UTL_RAW
              • Overview
              • BIT_AND
              • BIT_COMPLEMENT
              • BIT_OR
              • BIT_XOR
              • CAST_FROM_BINARY_DOUBLE
              • CAST_FROM_BINARY_FLOAT
              • CAST_FROM_BINARY_INTEGER
              • CAST_FROM_NUMBER
              • CAST_TO_BINARY_DOUBLE
              • CAST_TO_BINARY_FLOAT
              • CAST_TO_BINARY_INTEGER
              • CAST_TO_NUMBER
              • CAST_TO_RAW
              • CAST_TO_VARCHAR2
              • COMPARE
              • CONCAT
              • COPIES
              • LENGTH
              • REVERSE
              • SUBSTR
              • TRANSLATE
            • UTL_TCP
              • Overview of UTL_TCP
              • OPEN_CONNECTION
              • CLOSE_CONNECTION
              • CLOSE_ALL_CONNECTIONS
              • WRITE_LINE
              • WRITE_TEXT
              • WRITE_RAW
              • GET_LINE
              • GET_TEXT
            • UTL_SMTP
              • Overview of UTL_SMTP
              • OPEN_CONNECTION
              • CLOSE_CONNECTION
              • QUIT
              • AUTH
              • COMMAND
              • COMMAND_REPLIES
              • HELO
              • EHLO
              • MAIL
              • RCPT
              • OPEN_DATA
              • WRITE_DATA
              • WRITE_RAW_DATA
              • CLOSE_DATA
              • DATA
              • VRFY
              • HELP
              • NOOP
              • RSET
            • ANYDATA TYPE
              • Overview of the ANYDATA type
              • BEGINCREATE static stored procedure
              • ENDCREATE member procedure
              • GET* member function
              • GETTYPE member function
              • GETTYPENAME member function
              • PIECEWISE member stored procedure
              • SET* member stored procedure
            • XMLType
              • Overview of XMLType
              • CREATEXML
              • GETCLOBVAL
              • GETSTRINGVAL
              • TRANSFORM
              • XMLTYPE
              • EXISTSNODE
              • EXTRACT
          • Reserved PL keywords
      • Reserved keywords (MySQL mode)
      • Reserved keywords (Oracle mode)
      • Data type conversion behavior in MySQL tenants in strict mode
    • System views
      • Overview
      • System views overview
      • Changes in views in OceanBase Database V3.x and V4.x
      • SYS tenant views
        • Dictionary views
          • information_schema.CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS
          • information_schema.COLLATION_CHARACTER_SET_APPLICABILITY
          • information_schema.COLUMN_PRIVILEGES
          • information_schema.ENGINES
          • information_schema.events
          • information_schema.KEY_COLUMN_USAGE
          • information_schema.PARAMETERS
          • information_schema.PARTITIONS
          • information_schema.PROCESSLIST
          • information_schema.QUERY_RESPONSE_TIME
          • information_schema.REFERENTIAL_CONSTRAINTS
          • information_schema.ROUTINES
          • information_schema.SCHEMA_PRIVILEGES
          • information_schema.SCHEMATA
          • information_schema.STATISTICS
          • information_schema.TABLE_CONSTRAINTS
          • information_schema.TABLE_PRIVILEGES
          • information_schema.TABLES
          • information_schema.USER_PRIVILEGES
          • information_schema.VIEW_TABLE_USAGE
          • information_schema.VIEWS
          • mysql.audit_log_filter
          • mysql.audit_log_user
          • mysql.columns_priv
          • mysql.db
          • mysql.default_roles
          • mysql.help_category
          • mysql.help_keyword
          • mysql.help_relation
          • mysql.help_topic
          • mysql.proc
          • mysql.role_edges
          • mysql.time_zone
          • mysql.time_zone_name
          • mysql.time_zone_transition
          • mysql.time_zone_transition_type
          • mysql.user
          • oceanbase.CDB_CKPT_HISTORY
          • oceanbase.CDB_IND_COLUMNS
          • oceanbase.CDB_IND_PARTITIONS
          • oceanbase.CDB_IND_SUBPARTITIONS
          • oceanbase.DBA_OB_SERVER_JOBS
          • CDB_INDEX_USAGE
          • oceanbase.DBA_OB_SERVERS
          • oceanbase.CDB_INDEXES
          • oceanbase.DBA_OB_TABLEGROUP_PARTITIONS
          • oceanbase.CDB_OB_ACCESS_POINT
          • oceanbase.DBA_OB_TABLEGROUP_SUBPARTITIONS
          • oceanbase.CDB_OB_LS_ARB_REPLICA_TASKS
          • oceanbase.DBA_OB_TABLEGROUP_TABLES
          • oceanbase.CDB_OB_ARCHIVE_DEST
          • oceanbase.DBA_OB_TABLEGROUPS
          • oceanbase.CDB_OB_ARCHIVELOG
          • oceanbase.DBA_OB_TABLET_REPLICAS
          • oceanbase.CDB_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.DBA_OB_TABLET_TO_LS
          • oceanbase.CDB_OB_ARCHIVELOG_SUMMARY
          • oceanbase.DBA_OB_TENANT_JOBS
          • oceanbase.DBA_OB_TENANTS
          • CDB_OB_AUX_STATISTICS
          • oceanbase.DBA_OB_UNIT_JOBS
          • oceanbase.CDB_OB_BACKUP_DELETE_JOB_HISTORY
          • oceanbase.DBA_OB_UNIT_CONFIGS
          • oceanbase.CDB_OB_BACKUP_DELETE_JOBS
          • oceanbase.DBA_OB_UNITS
          • oceanbase.CDB_OB_BACKUP_DELETE_POLICY
          • oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION
          • oceanbase.CDB_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.DBA_OB_ZONES
          • oceanbase.CDB_OB_BACKUP_DELETE_TASKS
          • oceanbase.DBA_OBJECTS
          • oceanbase.CDB_OB_BACKUP_JOB_HISTORY
          • oceanbase.DBA_PART_INDEXES
          • oceanbase.CDB_OB_BACKUP_JOBS
          • oceanbase.DBA_PART_KEY_COLUMNS
          • oceanbase.CDB_OB_BACKUP_PARAMETER
          • oceanbase.CDB_OB_BACKUP_SET_FILES
          • oceanbase.DBA_OB_SEQUENCE_OBJECTS
          • oceanbase.DBA_SUBPART_KEY_COLUMNS
          • oceanbase.DBA_SUBPARTITION_TEMPLATES
          • oceanbase.CDB_OB_BACKUP_TASK_HISTORY
          • oceanbase.CDB_OB_BACKUP_TASKS
          • oceanbase.CDB_OB_BALANCE_JOB_HISTORY
          • oceanbase.CDB_IND_COLUMNS
          • oceanbase.CDB_OB_BALANCE_JOBS
          • oceanbase.CDB_IND_PARTITIONS
          • oceanbase.CDB_OB_BALANCE_TASK_HISTORY
          • oceanbase.CDB_IND_SUBPARTITIONS
          • oceanbase.CDB_OB_BALANCE_TASKS
          • oceanbase.CDB_INDEXES
          • oceanbase.DBA_IND_PARTITIONS
          • oceanbase.CDB_OB_DATA_DICTIONARY_IN_LOG
          • oceanbase.DBA_IND_SUBPARTITIONS
          • oceanbase.DBA_OB_DATABASES
          • oceanbase.DBA_OB_LS_LOCATIONS
          • oceanbase.CDB_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.DBA_OB_MAJOR_COMPACTION
          • oceanbase.DBA_OB_RESOURCE_POOLS
          • oceanbase.CDB_OB_FREEZE_INFO
          • oceanbase.DBA_OB_ROOTSERVICE_EVENT_HISTORY
          • oceanbase.CDB_OB_IMPORT_TABLE_JOB_HISTORY
          • oceanbase.CDB_OB_IMPORT_TABLE_JOBS
          • oceanbase.CDB_OB_IMPORT_TABLE_TASK_HISTORY
          • oceanbase.CDB_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.CDB_OB_IMPORT_TABLE_TASKS
          • oceanbase.CDB_OB_KV_TTL_TASKS
          • oceanbase.CDB_OB_LOG_RESTORE_SOURCE
          • oceanbase.CDB_OB_LS
          • oceanbase.CDB_OB_DATABASES
          • oceanbase.CDB_OB_LS_HISTORY
          • oceanbase.CDB_OB_LS_LOCATIONS
          • oceanbase.CDB_OB_LS_LOCATIONS
          • oceanbase.CDB_OB_MAJOR_COMPACTION
          • oceanbase.CDB_OB_LS_LOG_ARCHIVE_PROGRESS
          • oceanbase.CDB_OB_RESTORE_HISTORY
          • CDB_OB_LS_REPLICA_TASK_HISTORY
          • oceanbase.CDB_OB_RESTORE_PROGRESS
          • oceanbase.CDB_OB_LS_REPLICA_TASKS
          • oceanbase.CDB_OB_TABLEGROUP_PARTITIONS
          • oceanbase.CDB_OB_MAJOR_COMPACTION
          • oceanbase.CDB_OB_TABLEGROUP_SUBPARTITIONS
          • oceanbase.CDB_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.CDB_OB_TABLEGROUP_TABLES
          • oceanbase.CDB_OB_RECOVER_TABLE_JOBS
          • oceanbase.CDB_OB_TABLEGROUPS
          • oceanbase.CDB_OB_RESTORE_HISTORY
          • oceanbase.CDB_OB_TABLET_REPLICAS
          • oceanbase.CDB_OB_RESTORE_PROGRESS
          • oceanbase.CDB_OB_TABLET_TO_LS
          • oceanbase.CDB_OB_SERVICES
          • oceanbase.CDB_OB_SYS_VARIABLES
          • oceanbase.CDB_OB_ZONE_MAJOR_COMPACTION
          • oceanbase.CDB_OB_TABLE_LOCATIONS
          • oceanbase.CDB_OB_TABLEGROUP_PARTITIONS
          • oceanbase.CDB_OBJECTS
          • oceanbase.CDB_OB_TABLEGROUP_SUBPARTITIONS
          • oceanbase.CDB_PART_INDEXES
          • oceanbase.CDB_OB_TABLEGROUP_TABLES
          • oceanbase.CDB_PART_KEY_COLUMNS
          • oceanbase.CDB_SUBPART_KEY_COLUMNS
          • oceanbase.CDB_SUBPARTITION_TEMPLATES
          • oceanbase.CDB_OB_TABLET_TO_LS
          • oceanbase.CDB_TAB_COL_STATISTICS
          • oceanbase.CDB_OB_TENANT_EVENT_HISTORY
          • oceanbase.CDB_TAB_COLS
          • oceanbase.CDB_OB_TRANSFER_PARTITION_TASKS
          • oceanbase.CDB_TAB_COLS_V$
          • oceanbase.CDB_OB_TRANSFER_PARTITION_TASK_HISTORY
          • oceanbase.CDB_OB_TRANSFER_TASK_HISTORY
          • oceanbase.CDB_OB_TRANSFER_TASKS
          • oceanbase.CDB_OB_USERS
          • oceanbase.CDB_OB_BACKUP_SET_FILES
          • oceanbase.CDB_OB_ZONE_MAJOR_COMPACTION
          • oceanbase.DBA_OB_BACKUP_SET_FILES
          • oceanbase.CDB_OBJECTS
          • oceanbase.CDB_OB_BACKUP_JOBS
          • oceanbase.CDB_PART_INDEXES
          • oceanbase.DBA_OB_BACKUP_JOBS
          • oceanbase.CDB_PART_KEY_COLUMNS
          • oceanbase.CDB_OB_BACKUP_JOB_HISTORY
          • oceanbase.CDB_PART_TABLES
          • oceanbase.DBA_OB_BACKUP_JOB_HISTORY
          • oceanbase.CDB_SCHEDULER_JOB_RUN_DETAILS
          • oceanbase.CDB_OB_BACKUP_TASKS
          • oceanbase.CDB_SUBPART_KEY_COLUMNS
          • oceanbase.DBA_OB_BACKUP_TASKS
          • oceanbase.CDB_OB_BACKUP_TASK_HISTORY
          • oceanbase.DBA_OB_BACKUP_TASK_HISTORY
          • oceanbase.CDB_TAB_COLS
          • oceanbase.CDB_TAB_COLS_V$
          • oceanbase.DBA_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.CDB_TAB_PARTITIONS
          • oceanbase.DBA_OB_RESTORE_PROGRESS
          • oceanbase.CDB_TAB_SUBPARTITIONS
          • oceanbase.DBA_OB_RESTORE_HISTORY
          • oceanbase.CDB_TABLES
          • oceanbase.CDB_OB_ARCHIVE_DEST
          • oceanbase.CDB_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.DBA_OB_ARCHIVE_DEST
          • oceanbase.CDB_WR_CONTROL
          • oceanbase.CDB_OB_ARCHIVELOG
          • oceanbase.DBA_OB_ARCHIVELOG
          • oceanbase.CDB_WR_SNAPSHOT
          • oceanbase.CDB_OB_ARCHIVELOG_SUMMARY
          • oceanbase.DBA_OB_ARCHIVELOG_SUMMARY
          • oceanbase.CDB_OB_BACKUP_PARAMETER
          • oceanbase.DBA_OB_BACKUP_PARAMETER
          • oceanbase.DBA_OB_OUTLINE_CONCURRENT_HISTORY
          • oceanbase.DBA_OB_OUTLINES
          • oceanbase.DBA_OB_CONCURRENT_LIMIT_SQL
          • oceanbase.DBA_DB_LINKS
          • oceanbase.CDB_OB_SYS_VARIABLES
          • oceanbase.DBA_IND_PARTITIONS
          • oceanbase.CDB_OB_BACKUP_DELETE_JOBS
          • oceanbase.DBA_IND_STATISTICS
          • oceanbase.DBA_OB_BACKUP_DELETE_JOBS
          • oceanbase.DBA_IND_SUBPARTITIONS
          • oceanbase.CDB_OB_BACKUP_DELETE_JOB_HISTORY
          • DBA_INDEX_USAGE
          • oceanbase.DBA_OB_BACKUP_DELETE_JOB_HISTORY
          • oceanbase.DBA_OB_ACCESS_POINT
          • oceanbase.CDB_OB_BACKUP_DELETE_TASKS
          • oceanbase.DBA_OB_BACKUP_DELETE_TASKS
          • oceanbase.DBA_OB_ARCHIVE_DEST
          • oceanbase.CDB_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.DBA_OB_ARCHIVELOG
          • oceanbase.DBA_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.DBA_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.CDB_OB_BACKUP_STORAGE_INFO
          • oceanbase.DBA_OB_ARCHIVELOG_SUMMARY
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO
          • oceanbase.CDB_OB_BACKUP_STORAGE_INFO_HISTORY
          • DBA_OB_AUX_STATISTICS
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_JOB_HISTORY
          • oceanbase.CDB_OB_BACKUP_DELETE_POLICY
          • oceanbase.DBA_OB_BACKUP_DELETE_JOBS
          • oceanbase.DBA_OB_BACKUP_DELETE_POLICY
          • oceanbase.CDB_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.DBA_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_TASKS
          • oceanbase.CDB_OB_COLUMN_CHECKSUM_ERROR_INFO
          • oceanbase.DBA_OB_BACKUP_JOB_HISTORY
          • oceanbase.CDB_OB_TABLET_CHECKSUM_ERROR_INFO
          • oceanbase.DBA_OB_BACKUP_JOBS
          • oceanbase.DBA_TAB_STATISTICS
          • oceanbase.DBA_OB_BACKUP_PARAMETER
          • oceanbase.DBA_TAB_COL_STATISTICS
          • oceanbase.DBA_PART_COL_STATISTICS
          • oceanbase.DBA_SUBPART_COL_STATISTICS
          • oceanbase.DBA_TAB_HISTOGRAMS
          • oceanbase.DBA_OB_BACKUP_TASK_HISTORY
          • oceanbase.DBA_PART_HISTOGRAMS
          • oceanbase.DBA_OB_BACKUP_TASKS
          • oceanbase.DBA_SUBPART_HISTOGRAMS
          • oceanbase.DBA_OB_BALANCE_JOB_HISTORY
          • oceanbase.DBA_TAB_STATS_HISTORY
          • oceanbase.DBA_OB_BALANCE_JOBS
          • oceanbase.DBA_SCHEDULER_JOBS
          • oceanbase.DBA_OB_BALANCE_TASK_HISTORY
          • oceanbase.DBA_IND_STATISTICS
          • oceanbase.DBA_OB_BALANCE_TASKS
          • oceanbase.DBA_TAB_MODIFICATIONS
          • oceanbase.DBA_SQL_PLAN_BASELINES
          • oceanbase.DBA_OB_CONCURRENT_LIMIT_SQL
          • oceanbase.DBA_SQL_MANAGEMENT_CONFIG
          • oceanbase.CDB_OB_LS
          • oceanbase.DBA_OB_LS
          • oceanbase.DBA_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.CDB_OB_TABLE_LOCATIONS
          • oceanbase.DBA_OB_TABLE_LOCATIONS
          • oceanbase.DBA_OB_FREEZE_INFO
          • oceanbase.DBA_OB_SERVER_EVENT_HISTORY
          • oceanbase.DBA_OB_IMPORT_TABLE_JOB_HISTORY
          • oceanbase.CDB_OB_FREEZE_INFO
          • oceanbase.DBA_OB_IMPORT_TABLE_JOBS
          • oceanbase.DBA_OB_FREEZE_INFO
          • oceanbase.DBA_OB_IMPORT_TABLE_TASK_HISTORY
          • oceanbase.DBA_OB_LS_REPLICA_TASKS
          • oceanbase.DBA_OB_IMPORT_TABLE_TASKS
          • oceanbase.CDB_OB_LS_REPLICA_TASKS
          • oceanbase.DBA_OB_AUTO_INCREMENT
          • oceanbase.DBA_OB_KV_TTL_TASKS
          • oceanbase.CDB_OB_AUTO_INCREMENT
          • oceanbase.DBA_OB_LOG_RESTORE_SOURCE
          • oceanbase.DBA_SEQUENCES
          • oceanbase.DBA_OB_LS
          • oceanbase.DBA_SCHEDULER_WINDOWS
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASKS
          • oceanbase.DBA_OB_USERS
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASK_HISTORY
          • oceanbase.CDB_OB_USERS
          • oceanbase.DBA_OB_LS_HISTORY
          • oceanbase.DBA_OB_DATABASE_PRIVILEGE
          • oceanbase.DBA_OB_LS_LOCATIONS
          • oceanbase.CDB_OB_DATABASE_PRIVILEGE
          • oceanbase.DBA_OB_LS_LOG_ARCHIVE_PROGRESS
          • oceanbase.DBA_OB_USER_DEFINED_RULES
          • oceanbase.DBA_OB_LS_REPLICA_TASK_HISTORY
          • oceanbase.DBA_OB_LS_REPLICA_TASKS
          • oceanbase.CDB_OB_LS_LOG_ARCHIVE_PROGRESS
          • oceanbase.DBA_OB_MAJOR_COMPACTION
          • oceanbase.DBA_OB_LS_LOG_ARCHIVE_PROGRESS
          • oceanbase.DBA_OB_ARBITRATION_SERVICE
          • oceanbase.CDB_OB_LS_ARB_REPLICA_TASKS
          • oceanbase.DBA_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASKS
          • oceanbase.DBA_OB_RECOVER_TABLE_JOBS
          • oceanbase.CDB_OB_LS_ARB_REPLICA_TASK_HISTORY
          • oceanbase.DBA_OB_RESOURCE_POOLS
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASK_HISTORY
          • oceanbase.DBA_OB_RESTORE_HISTORY
          • oceanbase.DBA_OB_RESTORE_PROGRESS
          • oceanbase.DBA_OB_CLUSTER_EVENT_HISTORY
          • oceanbase.DBA_OB_RSRC_IO_DIRECTIVES
          • oceanbase.DBA_OB_RSRC_IO_DIRECTIVES
          • oceanbase.DBA_RSRC_PLANS
          • oceanbase.DBA_RSRC_PLAN_DIRECTIVES
          • oceanbase.DBA_OB_SERVER_JOBS
          • oceanbase.DBA_RSRC_GROUP_MAPPINGS
          • oceanbase.DBA_OB_SERVERS
          • oceanbase.DBA_RSRC_CONSUMER_GROUPS
          • oceanbase.DBA_OB_SERVICES
          • oceanbase.DBA_OB_SYS_VARIABLES
          • oceanbase.DBA_OB_SPM_EVO_RESULT
          • oceanbase.DBA_OB_TABLE_LOCATIONS
          • oceanbase.DBA_OB_TABLEGROUP_PARTITIONS
          • oceanbase.DBA_OB_DATA_DICTIONARY_IN_LOG
          • oceanbase.DBA_OB_TABLEGROUP_SUBPARTITIONS
          • oceanbase.CDB_OB_DATA_DICTIONARY_IN_LOG
          • oceanbase.DBA_OB_TABLEGROUP_TABLES
          • oceanbase.DBA_OB_TASK_OPT_STAT_GATHER_HISTORY
          • oceanbase.DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY
          • oceanbase.CDB_OB_LOG_RESTORE_SOURCE
          • oceanbase.DBA_OB_TABLET_REPLICAS
          • oceanbase.DBA_OB_LOG_RESTORE_SOURCE
          • oceanbase.DBA_OB_TABLET_TO_LS
          • oceanbase.DBA_OB_TABLE_STAT_STALE_INFO
          • oceanbase.DBA_OB_EXTERNAL_TABLE_FILES
          • oceanbase.DBA_OB_TENANT_EVENT_HISTORY
          • oceanbase.ALL_OB_EXTERNAL_TABLE_FILES
          • oceanbase.DBA_OB_TENANT_JOBS
          • oceanbase.CDB_OB_EXTERNAL_TABLE_FILES
          • oceanbase.DBA_OB_TENANTS
          • oceanbase.DBA_OB_BALANCE_JOBS
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASKS
          • oceanbase.CDB_OB_BALANCE_JOBS
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASK_HISTORY
          • oceanbase.DBA_OB_BALANCE_JOB_HISTORY
          • oceanbase.DBA_OB_TRANSFER_TASK_HISTORY
          • oceanbase.CDB_OB_BALANCE_JOB_HISTORY
          • oceanbase.DBA_OB_TRANSFER_TASKS
          • oceanbase.DBA_OB_BALANCE_TASKS
          • oceanbase.DBA_OB_UNIT_CONFIGS
          • oceanbase.DBA_OB_BALANCE_TASK_HISTORY
          • oceanbase.DBA_OB_UNIT_JOBS
          • oceanbase.CDB_OB_BALANCE_TASKS
          • oceanbase.DBA_OB_UNITS
          • oceanbase.CDB_OB_BALANCE_TASK_HISTORY
          • oceanbase.DBA_OB_TRANSFER_TASKS
          • oceanbase.DBA_OB_USERS
          • oceanbase.DBA_OB_TRANSFER_TASK_HISTORY
          • oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION
          • oceanbase.CDB_OB_TRANSFER_TASKS
          • oceanbase.DBA_OB_ZONES
          • oceanbase.CDB_OB_TRANSFER_TASK_HISTORY
          • oceanbase.DBA_OBJECTS
          • oceanbase.CDB_OB_ACCESS_POINT
          • oceanbase.DBA_PART_COL_STATISTICS
          • oceanbase.DBA_OB_ACCESS_POINT
          • oceanbase.DBA_DB_LINKS
          • oceanbase.DBA_PART_INDEXES
          • oceanbase.CDB_OB_LS_HISTORY
          • oceanbase.DBA_PART_KEY_COLUMNS
          • oceanbase.DBA_OB_LS_HISTORY
          • oceanbase.DBA_PART_TABLES
          • oceanbase.CDB_OB_TENANT_EVENT_HISTORY
          • oceanbase.DBA_RSRC_CONSUMER_GROUPS
          • oceanbase.DBA_OB_TENANT_EVENT_HISTORY
          • oceanbase.DBA_RSRC_GROUP_MAPPINGS
          • oceanbase.DBA_RSRC_PLAN_DIRECTIVES
          • oceanbase.DBA_RSRC_PLANS
          • oceanbase.DBA_SCHEDULER_JOB_RUN_DETAILS
          • oceanbase.DBA_WR_SNAPSHOT
          • oceanbase.CDB_WR_SNAPSHOT
          • oceanbase.DBA_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.DBA_SQL_MANAGEMENT_CONFIG
          • oceanbase.CDB_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.DBA_SQL_PLAN_BASELINES
          • oceanbase.DBA_WR_STATNAME
          • oceanbase.DBA_SUBPART_COL_STATISTICS
          • oceanbase.CDB_WR_STATNAME
          • oceanbase.DBA_WR_SYSSTAT
          • oceanbase.DBA_SUBPART_KEY_COLUMNS
          • oceanbase.CDB_WR_SYSSTAT
          • oceanbase.DBA_WR_CONTROL
          • oceanbase.CDB_WR_CONTROL
          • oceanbase.CDB_OB_RECOVER_TABLE_JOBS
          • oceanbase.DBA_OB_RECOVER_TABLE_JOBS
          • oceanbase.DBA_TAB_PARTITIONS
          • oceanbase.CDB_OB_IMPORT_TABLE_JOBS
          • oceanbase.DBA_OB_IMPORT_TABLE_JOBS
          • oceanbase.CDB_OB_IMPORT_TABLE_TASKS
          • oceanbase.DBA_TAB_SUBPARTITIONS
          • oceanbase.DBA_OB_IMPORT_TABLE_TASKS
          • oceanbase.DBA_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.CDB_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.DBA_WR_CONTROL
          • oceanbase.DBA_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.CDB_OB_IMPORT_TABLE_JOB_HISTORY
          • oceanbase.DBA_WR_SQL_PLAN
          • oceanbase.DBA_OB_IMPORT_TABLE_JOB_HISTORY
          • oceanbase.CDB_OB_IMPORT_TABLE_TASK_HISTORY
          • oceanbase.DBA_OB_IMPORT_TABLE_TASK_HISTORY
          • oceanbase.CDB_OB_KV_TTL_TASKS
          • oceanbase.CDB_OB_KV_TTL_TASK_HISTORY
          • oceanbase.DBA_OB_KV_TTL_TASKS
          • oceanbase.DBA_OB_KV_TTL_TASK_HISTORY
          • oceanbase.CDB_OB_TRANSFER_PARTITION_TASKS
          • oceanbase.CDB_OB_TRANSFER_PARTITION_TASK_HISTORY
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASKS
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASK_HISTORY
          • oceanbase.CDB_WR_SYSTEM_EVENT
          • oceanbase.DBA_WR_SYSTEM_EVENT
          • oceanbase.CDB_WR_EVENT_NAME
          • oceanbase.DBA_WR_EVENT_NAME
          • oceanbase.CDB_WR_SQLSTAT
          • oceanbase.DBA_WR_SQLSTAT
          • oceanbase.CDB_WR_SYS_TIME_MODEL
          • oceanbase.DBA_WR_SYS_TIME_MODEL
          • oceanbase.CDB_WR_SQLTEXT
          • oceanbase.DBA_WR_SQLTEXT
          • mysql.procs_priv
          • oceanbase.DBA_OB_SYS_VARIABLES
          • information_schema.role_table_grants
          • information_schema.role_column_grants
          • information_schema.role_routine_grants
          • oceanbase.CDB_OB_KV_REDIS_TABLE
        • Performance views
          • GV$ACTIVE_SESSION_HISTORY
          • GV$LATCH
          • GV$OB_MEMORY
          • GV$OB_KVCACHE
          • GV$OB_MEMSTORE
          • GV$OB_MERGE_INFO
          • GV$OB_ACTIVE_SESSION_HISTORY
          • GV$OB_PX_TARGET_MONITOR
          • GV$OB_SERVERS
          • GV$OB_COMPACTION_DIAGNOSE_INFO
          • GV$OB_COMPACTION_PROGRESS
          • GV$OB_TABLET_COMPACTION_PROGRESS
          • GV$OB_COMPACTION_SUGGESTIONS
          • GV$OB_PLAN_CACHE_STAT
          • GV$SESSION_WAIT
          • GV$OB_LOG_STAT
          • GV$SYSTEM_EVENT
          • GV$OB_LOG_TRANSPORT_DEST_STAT
          • GV$OB_MEMSTORE_INFO
          • GV$OB_IO_BENCHMARK
          • GV$OB_PARAMETERS
          • GV$OB_PL_CACHE_OBJECT
          • GV$OB_PROCESSLIST
          • GV$OB_PX_WORKER_STAT
          • GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • GV$OB_RES_MGR_SYSSTAT
          • GV$OB_RPC_OUTGOING
          • GV$OB_RPC_INCOMING
          • GV$OB_SESSION
          • GV$OB_SESSION_PS_INFO
          • GV$DML_STATS
          • GV$SESSION_LONGOPS
          • GV$OB_TABLET_COMPACTION_HISTORY
          • GV$OB_PS_STAT
          • GV$OB_TENANT_RESOURCE_LIMIT
          • GV$OB_PS_ITEM_INFO
          • GV$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • GV$SQL_WORKAREA
          • GV$OB_SQL_WORKAREA_MEMORY_INFO
          • GV$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_TRANSACTION_SCHEDULERS
          • GV$OB_UNITS
          • GV$OB_SSTABLES
          • GV$OB_PLAN_CACHE_PLAN_EXPLAIN
          • GV$OB_TENANT_MEMORY
          • GV$OB_PLAN_CACHE_PLAN_STAT
          • V$OB_KVCACHE
          • GV$OB_SERVER_SCHEMA_INFO
          • GV$SESSION_EVENT
          • V$OB_PX_TARGET_MONITOR
          • V$OB_SERVERS
          • GV$SESSION_WAIT_HISTORY
          • GV$SESSTAT
          • V$OB_TABLET_COMPACTION_PROGRESS
          • GV$OB_SQL_AUDIT
          • GV$SQL_JOIN_FILTER
          • GV$SQL_PLAN_MONITOR
          • V$STATNAME
          • V$EVENT_NAME
          • GV$SQL_WORKAREA_HISTOGRAM
          • GV$SYSSTAT
          • gv$tenant
          • V$SYSTEM_EVENT
          • gv$tenant_memstore_allocator_info
          • GV$OB_ARBITRATION_MEMBER_INFO
          • V$OB_MEMORY
          • GV$OB_ARBITRATION_SERVICE_STATUS
          • GV$OB_LOCKS
          • V$OB_PLAN_CACHE_STAT
          • GV$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_PLAN_CACHE_PLAN_EXPLAIN
          • GV$UNIT
          • GV$OB_KV_CLIENT_INFO
          • V$OB_RPC_OUTGOING
          • V$OB_RPC_INCOMING
          • V$SESSION_LONGOPS
          • GV$OB_KV_GROUP_COMMIT_STATUS
          • V$OB_PS_STAT
          • V$OB_PS_ITEM_INFO
          • V$SQL_WORKAREA
          • V$SQL_WORKAREA_ACTIVE
          • V$OB_SQL_WORKAREA_MEMORY_INFO
          • V$ENCRYPTED_TABLESPACES
          • V$OB_SSTABLES
          • V$OB_TENANT_MEMORY
          • GV$SQL_WORKAREA_ACTIVE
          • GV$OB_IO_CALIBRATION_STATUS
          • V$OB_IO_CALIBRATION_STATUS
          • GV$OB_DTL_INTERM_RESULT_MONITOR
          • V$OB_IO_BENCHMARK
          • V$DML_STATS
          • V$OB_DTL_INTERM_RESULT_MONITOR
          • GV$OB_THREAD
          • V$OB_THREAD
          • V$OB_TIMESTAMP_SERVICE
          • GV$OB_PX_P2P_DATAHUB
          • V$OB_PX_P2P_DATAHUB
          • GV$OB_SQL_PLAN
          • V$OB_SQL_PLAN
          • GV$OB_TENANT_RUNTIME_INFO
          • V$OB_TENANT_RUNTIME_INFO
          • GV$OB_FLT_TRACE_CONFIG
          • GV$OB_KV_CONNECTIONS
          • V$OB_KV_CONNECTIONS
          • GV$OB_SQLSTAT
          • V$OB_SQLSTAT
          • GV$OB_SESS_TIME_MODEL
          • V$OB_SESS_TIME_MODEL
          • GV$OB_SYS_TIME_MODEL
          • V$OB_SYS_TIME_MODEL
          • GV$OB_CGROUP_CONFIG
          • V$OB_CGROUP_CONFIG
          • V$ACTIVE_SESSION_HISTORY
          • V$OB_ENCRYPTED_TABLES
          • V$LATCH
          • V$OB_MEMSTORE
          • V$OB_MERGE_INFO
          • V$OB_ACTIVE_SESSION_HISTORY
          • V$OB_ARCHIVE_DEST_STATUS
          • V$OB_COMPACTION_DIAGNOSE_INFO
          • V$OB_COMPACTION_PROGRESS
          • V$OB_COMPACTION_SUGGESTIONS
          • V$OB_COMPATIBILITY_CONTROL
          • V$OB_LOG_STAT
          • V$OB_LOG_TRANSPORT_DEST_STAT
          • V$OB_LS_LOG_RESTORE_STATUS
          • V$OB_LS_REPLICA_TASK_PLAN
          • V$OB_MEMSTORE_INFO
          • V$OB_PARAMETERS
          • V$OB_PL_CACHE_OBJECT
          • V$OB_PROCESSLIST
          • V$OB_PX_WORKER_STAT
          • V$OB_RES_MGR_SYSSTAT
          • V$OB_SESSION
          • V$OB_SESSION_PS_INFO
          • V$OB_TABLET_COMPACTION_HISTORY
          • V$OB_TENANT_RESOURCE_LIMIT
          • V$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • V$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_TRANSACTION_SCHEDULERS
          • V$OB_UNITS
          • V$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • V$OB_PLAN_CACHE_PLAN_STAT
          • V$RESTORE_POINT
          • V$RSRC_PLAN
          • V$OB_SERVER_SCHEMA_INFO
          • V$SESSION_EVENT
          • V$SESSION_WAIT
          • V$SESSION_WAIT_HISTORY
          • V$SESSTAT
          • V$OB_SQL_AUDIT
          • V$SQL_JOIN_FILTER
          • V$SQL_MONITOR_STATNAME
          • V$SQL_PLAN_MONITOR
          • V$SQL_WORKAREA_HISTOGRAM
          • V$SYSSTAT
          • V$OB_ARBITRATION_MEMBER_INFO
          • V$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_LOCKS
          • V$OB_OPT_STAT_GATHER_MONITOR
          • v$tenant_memstore_allocator_info
          • V$UNIT
          • V$OB_KV_CLIENT_INFO
          • V$OB_KV_GROUP_COMMIT_STATUS
      • MySQL tenant views
        • Dictionary views
          • information_schema.CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS
          • information_schema.CHARACTER_SETS
          • information_schema.CHECK_CONSTRAINTS
          • information_schema.COLLATION_CHARACTER_SET_APPLICABILITY
          • information_schema.COLLATIONS
          • information_schema.COLUMN_PRIVILEGES
          • information_schema.COLUMNS
          • information_schema.ENGINES
          • information_schema.events
          • information_schema.GLOBAL_STATUS
          • information_schema.GLOBAL_VARIABLES
          • information_schema.KEY_COLUMN_USAGE
          • information_schema.PARAMETERS
          • information_schema.PARTITIONS
          • information_schema.PROCESSLIST
          • information_schema.QUERY_RESPONSE_TIME
          • information_schema.REFERENTIAL_CONSTRAINTS
          • information_schema.ROUTINES
          • information_schema.SCHEMA_PRIVILEGES
          • information_schema.SCHEMATA
          • information_schema.SESSION_STATUS
          • information_schema.SESSION_VARIABLES
          • information_schema.ST_GEOMETRY_COLUMNS
          • information_schema.ST_SPATIAL_REFERENCE_SYSTEMS
          • information_schema.STATISTICS
          • information_schema.TABLE_CONSTRAINTS
          • information_schema.TABLE_PRIVILEGES
          • information_schema.TABLES
          • information_schema.USER_PRIVILEGES
          • information_schema.VIEW_TABLE_USAGE
          • information_schema.VIEWS
          • mysql.audit_log_filter
          • mysql.audit_log_user
          • mysql.columns_priv
          • mysql.db
          • mysql.default_roles
          • mysql.help_category
          • mysql.help_keyword
          • mysql.help_relation
          • mysql.help_topic
          • mysql.proc
          • oceanbase.DBA_IND_PARTITIONS
          • mysql.role_edges
          • oceanbase.DBA_IND_SUBPARTITIONS
          • mysql.time_zone
          • oceanbase.DBA_OB_DATABASES
          • mysql.time_zone_name
          • oceanbase.DBA_OB_LS_LOCATIONS
          • mysql.time_zone_transition
          • oceanbase.DBA_OB_MAJOR_COMPACTION
          • mysql.time_zone_transition_type
          • mysql.user
          • oceanbase.DBA_DB_LINKS
          • oceanbase.DBA_IND_PARTITIONS
          • oceanbase.DBA_IND_STATISTICS
          • oceanbase.DBA_OB_TABLEGROUP_PARTITIONS
          • oceanbase.DBA_IND_SUBPARTITIONS
          • oceanbase.DBA_OB_TABLEGROUP_SUBPARTITIONS
          • DBA_INDEX_USAGE
          • oceanbase.DBA_OB_TABLEGROUP_TABLES
          • oceanbase.DBA_OB_ACCESS_POINT
          • oceanbase.DBA_OB_TABLEGROUPS
          • oceanbase.DBA_OB_ARCHIVE_DEST
          • oceanbase.DBA_OB_TABLET_REPLICAS
          • oceanbase.DBA_OB_ARCHIVELOG
          • oceanbase.DBA_OB_TABLET_TO_LS
          • oceanbase.DBA_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.DBA_OB_ARCHIVELOG_SUMMARY
          • DBA_OB_AUX_STATISTICS
          • oceanbase.DBA_OB_BACKUP_DELETE_JOB_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_JOBS
          • oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION
          • oceanbase.DBA_OB_BACKUP_DELETE_POLICY
          • oceanbase.DBA_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.DBA_OBJECTS
          • oceanbase.DBA_OB_BACKUP_DELETE_TASKS
          • oceanbase.DBA_PART_INDEXES
          • oceanbase.DBA_OB_BACKUP_JOB_HISTORY
          • oceanbase.DBA_PART_KEY_COLUMNS
          • oceanbase.DBA_OB_BACKUP_JOBS
          • oceanbase.DBA_OB_BACKUP_PARAMETER
          • oceanbase.DBA_OB_SEQUENCE_OBJECTS
          • oceanbase.DBA_OB_BACKUP_SET_FILES
          • oceanbase.DBA_SUBPART_KEY_COLUMNS
          • oceanbase.DBA_SUBPARTITION_TEMPLATES
          • oceanbase.DBA_OB_BACKUP_TASK_HISTORY
          • oceanbase.DBA_OB_BACKUP_TASKS
          • oceanbase.DBA_OB_BALANCE_JOB_HISTORY
          • oceanbase.DBA_OB_BALANCE_JOBS
          • oceanbase.DBA_OB_BALANCE_TASK_HISTORY
          • oceanbase.DBA_OB_BALANCE_TASKS
          • oceanbase.DBA_OB_CONCURRENT_LIMIT_SQL
          • oceanbase.DBA_OB_DATA_DICTIONARY_IN_LOG
          • oceanbase.DBA_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.DBA_OB_FREEZE_INFO
          • oceanbase.DBA_OB_IMPORT_TABLE_JOB_HISTORY
          • oceanbase.DBA_OB_IMPORT_TABLE_JOBS
          • oceanbase.DBA_OB_IMPORT_TABLE_TASK_HISTORY
          • oceanbase.DBA_OB_IMPORT_TABLE_TASKS
          • oceanbase.DBA_OB_KV_TTL_TASKS
          • oceanbase.DBA_OB_LOG_RESTORE_SOURCE
          • oceanbase.DBA_OB_LS
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASKS
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASK_HISTORY
          • oceanbase.DBA_OB_LS_HISTORY
          • oceanbase.DBA_OB_LS_LOCATIONS
          • oceanbase.DBA_OB_LS_REPLICA_TASK_HISTORY
          • oceanbase.DBA_OB_LS_REPLICA_TASKS
          • oceanbase.DBA_OB_MAJOR_COMPACTION
          • oceanbase.DBA_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.DBA_OB_RECOVER_TABLE_JOBS
          • oceanbase.DBA_OB_RESTORE_HISTORY
          • oceanbase.DBA_OB_RESTORE_PROGRESS
          • oceanbase.DBA_OB_RSRC_IO_DIRECTIVES
          • oceanbase.DBA_OB_SERVICES
          • oceanbase.DBA_OB_SYS_VARIABLES
          • oceanbase.DBA_OB_SPM_EVO_RESULT
          • oceanbase.DBA_OB_TABLE_LOCATIONS
          • oceanbase.DBA_OB_TABLEGROUP_PARTITIONS
          • oceanbase.DBA_OB_TABLEGROUP_SUBPARTITIONS
          • oceanbase.DBA_OB_TABLEGROUP_TABLES
          • oceanbase.DBA_OB_TABLET_REPLICAS
          • oceanbase.DBA_OB_TABLET_TO_LS
          • oceanbase.DBA_OB_BACKUP_SET_FILES
          • oceanbase.DBA_OB_TENANT_EVENT_HISTORY
          • oceanbase.DBA_OB_TENANTS
          • oceanbase.DBA_OB_BACKUP_JOBS
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASKS
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASK_HISTORY
          • oceanbase.DBA_OB_BACKUP_JOB_HISTORY
          • oceanbase.DBA_OB_TRANSFER_TASK_HISTORY
          • oceanbase.DBA_OB_TRANSFER_TASKS
          • oceanbase.DBA_OB_BACKUP_TASKS
          • oceanbase.DBA_OB_USERS
          • oceanbase.DBA_OB_BACKUP_TASK_HISTORY
          • oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION
          • oceanbase.DBA_OBJECTS
          • oceanbase.DBA_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.DBA_PART_COL_STATISTICS
          • oceanbase.DBA_OB_RESTORE_PROGRESS
          • oceanbase.DBA_OB_RESTORE_HISTORY
          • oceanbase.DBA_PART_INDEXES
          • oceanbase.DBA_PART_KEY_COLUMNS
          • oceanbase.DBA_OB_ARCHIVE_DEST
          • oceanbase.DBA_PART_TABLES
          • oceanbase.DBA_RSRC_CONSUMER_GROUPS
          • oceanbase.DBA_OB_ARCHIVELOG
          • oceanbase.DBA_RSRC_GROUP_MAPPINGS
          • oceanbase.DBA_RSRC_PLAN_DIRECTIVES
          • oceanbase.DBA_OB_ARCHIVELOG_SUMMARY
          • oceanbase.DBA_RSRC_PLANS
          • oceanbase.DBA_SCHEDULER_JOB_RUN_DETAILS
          • oceanbase.DBA_OB_BACKUP_PARAMETER
          • oceanbase.DBA_OB_OUTLINE_CONCURRENT_HISTORY
          • oceanbase.DBA_OB_OUTLINES
          • oceanbase.DBA_OB_CONCURRENT_LIMIT_SQL
          • oceanbase.DBA_SQL_MANAGEMENT_CONFIG
          • oceanbase.DBA_SQL_PLAN_BASELINES
          • oceanbase.DBA_SUBPART_COL_STATISTICS
          • oceanbase.DBA_OB_BACKUP_DELETE_JOBS
          • oceanbase.DBA_SUBPART_KEY_COLUMNS
          • oceanbase.DBA_OB_BACKUP_DELETE_JOB_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_TASKS
          • oceanbase.DBA_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.DBA_TAB_PARTITIONS
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO
          • oceanbase.DBA_TAB_SUBPARTITIONS
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO_HISTORY
          • oceanbase.DBA_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.DBA_WR_CONTROL
          • oceanbase.DBA_OB_BACKUP_DELETE_POLICY
          • oceanbase.DBA_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.DBA_WR_SQL_PLAN
          • oceanbase.DBA_TAB_STATISTICS
          • oceanbase.DBA_TAB_COL_STATISTICS
          • oceanbase.DBA_PART_COL_STATISTICS
          • oceanbase.DBA_SUBPART_COL_STATISTICS
          • oceanbase.DBA_OB_LS_LOG_ARCHIVE_PROGRESS
          • oceanbase.DBA_TAB_HISTOGRAMS
          • oceanbase.DBA_PART_HISTOGRAMS
          • oceanbase.DBA_SUBPART_HISTOGRAMS
          • oceanbase.DBA_TAB_STATS_HISTORY
          • oceanbase.DBA_SCHEDULER_JOBS
          • oceanbase.DBA_IND_STATISTICS
          • oceanbase.DBA_TAB_MODIFICATIONS
          • oceanbase.DBA_SQL_PLAN_BASELINES
          • oceanbase.DBA_SQL_MANAGEMENT_CONFIG
          • oceanbase.DBA_OB_LS
          • oceanbase.DBA_OB_TABLE_LOCATIONS
          • oceanbase.DBA_OB_FREEZE_INFO
          • oceanbase.DBA_OB_LS_REPLICA_TASKS
          • oceanbase.DBA_OB_AUTO_INCREMENT
          • oceanbase.DBA_SEQUENCES
          • oceanbase.DBA_SCHEDULER_WINDOWS
          • oceanbase.DBA_OB_USERS
          • oceanbase.DBA_OB_DATABASE_PRIVILEGE
          • oceanbase.DBA_OB_USER_DEFINED_RULES
          • oceanbase.DBA_OB_TENANTS
          • oceanbase.DBA_OB_LS_LOG_ARCHIVE_PROGRESS
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASKS
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASK_HISTORY
          • oceanbase.DBA_OB_RSRC_IO_DIRECTIVES
          • oceanbase.DBA_RSRC_PLANS
          • oceanbase.DBA_RSRC_PLAN_DIRECTIVES
          • oceanbase.DBA_RSRC_GROUP_MAPPINGS
          • oceanbase.DBA_RSRC_CONSUMER_GROUPS
          • oceanbase.DBA_OB_DATA_DICTIONARY_IN_LOG
          • oceanbase.DBA_OB_TASK_OPT_STAT_GATHER_HISTORY
          • oceanbase.DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY
          • oceanbase.DBA_OB_LOG_RESTORE_SOURCE
          • oceanbase.DBA_OB_TABLE_STAT_STALE_INFO
          • oceanbase.DBA_OB_EXTERNAL_TABLE_FILES
          • oceanbase.ALL_OB_EXTERNAL_TABLE_FILES
          • oceanbase.DBA_OB_BALANCE_JOBS
          • oceanbase.DBA_OB_BALANCE_JOB_HISTORY
          • oceanbase.DBA_OB_BALANCE_TASKS
          • oceanbase.DBA_OB_BALANCE_TASK_HISTORY
          • oceanbase.DBA_OB_TRANSFER_TASKS
          • oceanbase.DBA_OB_TRANSFER_TASK_HISTORY
          • oceanbase.DBA_OB_ACCESS_POINT
          • oceanbase.DBA_DB_LINKS
          • oceanbase.DBA_OB_LS_HISTORY
          • oceanbase.DBA_OB_TENANT_EVENT_HISTORY
          • oceanbase.DBA_WR_SNAPSHOT
          • oceanbase.DBA_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.DBA_WR_STATNAME
          • oceanbase.DBA_WR_SYSSTAT
          • oceanbase.DBA_WR_CONTROL
          • oceanbase.DBA_OB_RECOVER_TABLE_JOBS
          • oceanbase.DBA_OB_IMPORT_TABLE_JOBS
          • oceanbase.DBA_OB_IMPORT_TABLE_TASKS
          • oceanbase.DBA_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.DBA_OB_IMPORT_TABLE_JOB_HISTORY
          • oceanbase.DBA_OB_IMPORT_TABLE_TASK_HISTORY
          • oceanbase.DBA_OB_KV_TTL_TASKS
          • oceanbase.DBA_OB_KV_TTL_TASK_HISTORY
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASKS
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASK_HISTORY
          • oceanbase.DBA_WR_SYSTEM_EVENT
          • oceanbase.DBA_WR_EVENT_NAME
          • oceanbase.DBA_WR_SQLSTAT
          • oceanbase.DBA_WR_SYS_TIME_MODEL
          • oceanbase.DBA_WR_SQLTEXT
          • mysql.procs_priv
          • oceanbase.DBA_OB_SYS_VARIABLES
          • information_schema.role_table_grants
          • information_schema.role_column_grants
          • information_schema.role_routine_grants
          • oceanbase.DBA_OB_KV_REDIS_TABLE
        • Performance views
          • GV$ACTIVE_SESSION_HISTORY
          • GV$LATCH
          • GV$OB_MEMORY
          • GV$OB_KVCACHE
          • GV$OB_MEMSTORE
          • GV$OB_MERGE_INFO
          • GV$OB_ACTIVE_SESSION_HISTORY
          • GV$OB_PX_TARGET_MONITOR
          • GV$OB_SERVERS
          • GV$OB_COMPACTION_DIAGNOSE_INFO
          • GV$OB_COMPACTION_PROGRESS
          • GV$OB_TABLET_COMPACTION_PROGRESS
          • GV$OB_COMPACTION_SUGGESTIONS
          • GV$OB_PLAN_CACHE_STAT
          • GV$OB_LOG_STAT
          • GV$SYSTEM_EVENT
          • GV$OB_LOG_TRANSPORT_DEST_STAT
          • GV$OB_MEMSTORE_INFO
          • GV$OB_PARAMETERS
          • GV$OB_PL_CACHE_OBJECT
          • GV$OB_PROCESSLIST
          • GV$OB_PX_WORKER_STAT
          • GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • GV$OB_RES_MGR_SYSSTAT
          • GV$OB_RPC_OUTGOING
          • GV$OB_RPC_INCOMING
          • GV$OB_SESSION
          • GV$OB_SESSION_PS_INFO
          • GV$SESSION_LONGOPS
          • GV$OB_TABLET_COMPACTION_HISTORY
          • GV$OB_PS_STAT
          • GV$OB_TENANT_RESOURCE_LIMIT
          • GV$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • GV$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_TRANSACTION_SCHEDULERS
          • V$OB_TRANSACTION_SCHEDULERS
          • GV$OB_SQL_WORKAREA_MEMORY_INFO
          • GV$OB_UNITS
          • GV$OB_PLAN_CACHE_PLAN_EXPLAIN
          • GV$OB_SSTABLES
          • GV$OB_PLAN_CACHE_PLAN_STAT
          • GV$OB_PS_ITEM_INFO
          • GV$OB_SERVER_SCHEMA_INFO
          • V$OB_KVCACHE
          • GV$SESSION_EVENT
          • GV$SESSION_WAIT
          • V$OB_PX_TARGET_MONITOR
          • GV$SESSION_WAIT_HISTORY
          • V$OB_SERVERS
          • GV$SESSTAT
          • GV$OB_SQL_AUDIT
          • V$OB_TABLET_COMPACTION_PROGRESS
          • GV$SQL_JOIN_FILTER
          • GV$SQL_PLAN_MONITOR
          • GV$SQL_WORKAREA
          • V$STATNAME
          • V$EVENT_NAME
          • GV$SQL_WORKAREA_HISTOGRAM
          • GV$SYSSTAT
          • GV$OB_TENANT_MEMORY
          • GV$OB_ARBITRATION_MEMBER_INFO
          • V$SYSTEM_EVENT
          • GV$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_MEMORY
          • GV$OB_LOCKS
          • GV$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_PLAN_CACHE_STAT
          • GV$OB_KV_CLIENT_INFO
          • V$OB_RPC_OUTGOING
          • V$OB_RPC_INCOMING
          • V$SESSION_LONGOPS
          • GV$OB_KV_GROUP_COMMIT_STATUS
          • V$OB_PS_STAT
          • V$SQL_WORKAREA_ACTIVE
          • V$OB_SQL_WORKAREA_MEMORY_INFO
          • V$ENCRYPTED_TABLESPACES
          • V$OB_SSTABLES
          • V$OB_TENANT_MEMORY
          • GV$SQL_WORKAREA_ACTIVE
          • GV$OB_IO_CALIBRATION_STATUS
          • V$OB_IO_CALIBRATION_STATUS
          • GV$OB_IO_BENCHMARK
          • V$OB_IO_BENCHMARK
          • GV$DML_STATS
          • V$DML_STATS
          • GV$OB_DTL_INTERM_RESULT_MONITOR
          • V$OB_DTL_INTERM_RESULT_MONITOR
          • GV$OB_THREAD
          • V$OB_THREAD
          • V$OB_TIMESTAMP_SERVICE
          • GV$OB_PX_P2P_DATAHUB
          • V$OB_PX_P2P_DATAHUB
          • GV$OB_SQL_PLAN
          • V$OB_SQL_PLAN
          • GV$OB_KV_CONNECTIONS
          • V$OB_KV_CONNECTIONS
          • GV$OB_SQLSTAT
          • V$OB_SQLSTAT
          • GV$OB_SESS_TIME_MODEL
          • V$OB_SESS_TIME_MODEL
          • GV$OB_SYS_TIME_MODEL
          • V$OB_SYS_TIME_MODEL
          • GV$OB_CGROUP_CONFIG
          • V$OB_CGROUP_CONFIG
          • V$ACTIVE_SESSION_HISTORY
          • V$OB_ENCRYPTED_TABLES
          • V$LATCH
          • V$OB_MEMSTORE
          • V$OB_MERGE_INFO
          • V$OB_ACTIVE_SESSION_HISTORY
          • V$OB_ARCHIVE_DEST_STATUS
          • V$OB_COMPACTION_DIAGNOSE_INFO
          • V$OB_COMPACTION_PROGRESS
          • V$OB_COMPACTION_SUGGESTIONS
          • V$OB_COMPATIBILITY_CONTROL
          • V$OB_LOG_STAT
          • V$OB_LOG_TRANSPORT_DEST_STAT
          • V$OB_LS_LOG_RESTORE_STATUS
          • V$OB_LS_REPLICA_TASK_PLAN
          • V$OB_MEMSTORE_INFO
          • V$OB_PARAMETERS
          • V$OB_PL_CACHE_OBJECT
          • V$OB_PROCESSLIST
          • V$OB_PX_WORKER_STAT
          • V$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • V$OB_RES_MGR_SYSSTAT
          • V$OB_SESSION
          • V$OB_SESSION_PS_INFO
          • V$OB_TABLET_COMPACTION_HISTORY
          • V$OB_TENANT_RESOURCE_LIMIT
          • V$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • V$OB_TRANSACTION_PARTICIPANTS
          • V$OB_UNITS
          • V$OB_PLAN_CACHE_PLAN_EXPLAIN
          • V$OB_PLAN_CACHE_PLAN_STAT
          • V$OB_PS_ITEM_INFO
          • V$RESTORE_POINT
          • V$RSRC_PLAN
          • V$OB_SERVER_SCHEMA_INFO
          • V$SESSION_EVENT
          • V$SESSION_WAIT
          • V$SESSION_WAIT_HISTORY
          • V$SESSTAT
          • V$OB_SQL_AUDIT
          • V$SQL_JOIN_FILTER
          • V$SQL_MONITOR_STATNAME
          • V$SQL_PLAN_MONITOR
          • V$SQL_WORKAREA
          • V$SQL_WORKAREA_HISTOGRAM
          • V$SYSSTAT
          • V$OB_ARBITRATION_MEMBER_INFO
          • V$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_LOCKS
          • V$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_KV_CLIENT_INFO
          • V$OB_KV_GROUP_COMMIT_STATUS
      • Oracle tenant views
        • Dictionary views
          • ALL_ALL_TABLES
          • ALL_ARGUMENTS
          • ALL_COL_COMMENTS
          • ALL_COLL_TYPES
          • ALL_COL_PRIVS
          • ALL_CONSTRAINTS
          • ALL_CONS_COLUMNS
          • ALL_DB_LINKS
          • ALL_DEF_AUDIT_OPTS
          • ALL_ERRORS
          • ALL_IND_EXPRESSIONS
          • ALL_IND_COLUMNS
          • ALL_IND_PARTITIONS
          • ALL_IND_STATISTICS
          • ALL_IND_SUBPARTITIONS
          • ALL_INDEXES
          • ALL_METHOD_PARAMS
          • ALL_OBJECTS
          • ALL_OB_SOURCE
          • ALL_PART_INDEXES
          • ALL_SEQUENCES
          • ALL_PART_KEY_COLUMNS
          • ALL_PART_TABLES
          • ALL_SUBPARTITION_TEMPLATES
          • ALL_PLSQL_TYPES
          • ALL_PLSQL_COLL_TYPES
          • ALL_PLSQL_TYPE_ATTRS
          • ALL_POLICIES
          • ALL_POLICY_CONTEXTS
          • ALL_POLICY_GROUPS
          • ALL_PROCEDURES
          • ALL_PROFILES
          • ALL_SCHEDULER_JOB_ARGS
          • ALL_SCHEDULER_PROGRAM_ARGS
          • ALL_SEC_RELEVANT_COLS
          • ALL_TAB_STATS_HISTORY
          • ALL_SOURCE
          • ALL_SUBPART_KEY_COLUMNS
          • ALL_SYNONYMS
          • ALL_DIRECTORIES
          • ALL_DEPENDENCIES
          • ALL_TAB_COLS
          • ALL_PART_COL_STATISTICS
          • ALL_TAB_COLUMNS
          • ALL_PART_HISTOGRAMS
          • ALL_TAB_COMMENTS
          • ALL_SUBPART_COL_STATISTICS
          • ALL_SUBPART_HISTOGRAMS
          • ALL_TAB_MODIFICATIONS
          • ALL_TAB_COL_STATISTICS
          • ALL_TAB_PARTITIONS
          • ALL_TAB_HISTOGRAMS
          • ALL_TAB_PRIVS
          • ALL_TAB_STATISTICS
          • AUDIT_ACTIONS
          • ALL_TAB_SUBPARTITIONS
          • ALL_TABLES
          • ALL_TRIGGER_ORDERING
          • ALL_TRIGGERS
          • ALL_TYPE_ATTRS
          • ALL_TYPE_METHODS
          • ALL_TYPES
          • ALL_USERS
          • DBA_COLL_TYPES
          • ALL_VIEWS
          • DBA_COL_COMMENTS
          • DBA_ALL_TABLES
          • DBA_ARGUMENTS
          • DBA_CONS_COLUMNS
          • DBA_AUDIT_EXISTS
          • DBA_AUDIT_OBJECT
          • DBA_ERRORS
          • DBA_AUDIT_SESSION
          • DBA_AUDIT_STATEMENT
          • DBA_AUDIT_TRAIL
          • DBA_IND_EXPRESSIONS
          • DBA_COL_PRIVS
          • DBA_OB_DATABASES
          • DBA_CONSTRAINTS
          • DBA_CONTEXT
          • DBA_DB_LINKS
          • DBA_IND_COLUMNS
          • DBA_OB_TABLET_TO_LS
          • DBA_IND_PARTITIONS
          • DBA_IND_STATISTICS
          • DBA_IND_SUBPARTITIONS
          • DBA_OBJ_AUDIT_OPTS
          • DBA_INDEX_USAGE
          • DBA_INDEXES
          • DBA_JOBS
          • DBA_METHOD_PARAMS
          • DBA_OB_ACCESS_POINT
          • DBA_ROLES
          • DBA_OB_ARCHIVE_DEST
          • DBA_OB_ARCHIVELOG
          • DBA_OB_ARCHIVELOG_PIECE_FILES
          • DBA_OB_ARCHIVELOG_SUMMARY
          • DBA_OB_AUX_STATISTICS
          • DBA_OB_BACKUP_DELETE_JOB_HISTORY
          • DBA_OB_BACKUP_DELETE_JOBS
          • DBA_OB_BACKUP_DELETE_POLICY
          • DBA_OB_BACKUP_DELETE_TASK_HISTORY
          • DBA_STMT_AUDIT_OPTS
          • DBA_OB_BACKUP_DELETE_TASKS
          • DBA_SUBPARTITION_TEMPLATES
          • DBA_OB_BACKUP_JOB_HISTORY
          • DBA_OB_BACKUP_JOBS
          • DBA_OB_BACKUP_PARAMETER
          • DBA_OB_BACKUP_SET_FILES
          • DBA_OB_BACKUP_TASK_HISTORY
          • DBA_OB_BACKUP_TASKS
          • DBA_OB_BALANCE_JOB_HISTORY
          • DBA_OB_BALANCE_JOBS
          • DBA_OB_BALANCE_TASK_HISTORY
          • DBA_TAB_STATS_HISTORY
          • DBA_OB_BALANCE_TASKS
          • DBA_OB_CONCURRENT_LIMIT_SQL
          • DBA_OB_DATA_DICTIONARY_IN_LOG
          • DBA_OB_DEADLOCK_EVENT_HISTORY
          • DBA_OB_FREEZE_INFO
          • DBA_DEPENDENCIES
          • DBA_OB_IMPORT_TABLE_JOB_HISTORY
          • DBA_OB_IMPORT_TABLE_JOBS
          • DBA_RSRC_CONSUMER_GROUPS
          • DBA_OB_IMPORT_TABLE_TASK_HISTORY
          • DBA_RSRC_GROUP_MAPPINGS
          • DBA_OB_IMPORT_TABLE_TASKS
          • DBA_OB_LOG_RESTORE_SOURCE
          • DBA_RSRC_PLAN_DIRECTIVES
          • DBA_DIRECTORIES
          • DBA_OB_LS
          • DBA_OB_LS_ARB_REPLICA_TASKS
          • DBA_JOBS_RUNNING
          • DBA_OB_LS_ARB_REPLICA_TASK_HISTORY
          • DBA_OB_LS_HISTORY
          • DBA_PART_COL_STATISTICS
          • DBA_OB_LS_LOCATIONS
          • DBA_PART_HISTOGRAMS
          • DBA_OB_LS_LOG_ARCHIVE_PROGRESS
          • DBA_SUBPART_COL_STATISTICS
          • DBA_OB_LS_REPLICA_TASK_HISTORY
          • DBA_SUBPART_HISTOGRAMS
          • DBA_OB_LS_REPLICA_TASKS
          • DBA_TAB_COL_STATISTICS
          • DBA_OB_MAJOR_COMPACTION
          • DBA_TAB_HISTOGRAMS
          • DBA_TAB_STATISTICS
          • DBA_OB_PL_OBJ_CACHE_STATUS
          • DBA_OB_RECOVER_TABLE_JOB_HISTORY
          • DBA_OB_RECOVER_TABLE_JOBS
          • DBA_OB_RESTORE_HISTORY
          • STMT_AUDIT_OPTION_MAP
          • DBA_OB_RESTORE_PROGRESS
          • DBA_OB_RSRC_IO_DIRECTIVES
          • DBA_OB_SERVICES
          • DBA_OB_SYS_VARIABLES
          • DBA_OB_SPM_EVO_RESULT
          • DBA_OB_TABLE_LOCATIONS
          • DBA_OB_TABLEGROUP_PARTITIONS
          • DBA_OB_TABLEGROUP_SUBPARTITIONS
          • DBA_OB_TABLEGROUP_TABLES
          • USER_COLL_TYPES
          • DBA_OB_TABLEGROUPS
          • USER_COL_COMMENTS
          • DBA_OB_TABLET_REPLICAS
          • DBA_OB_SOURCE
          • USER_CONS_COLUMNS
          • DBA_OB_TENANT_EVENT_HISTORY
          • USER_ERRORS
          • DBA_OB_TENANTS
          • DBA_OB_TRANSFER_PARTITION_TASKS
          • DBA_OB_TRANSFER_PARTITION_TASK_HISTORY
          • USER_IND_EXPRESSIONS
          • DBA_OB_TRANSFER_TASK_HISTORY
          • DBA_OB_TRANSFER_TASKS
          • DBA_OB_ZONE_MAJOR_COMPACTION
          • DBA_OBJECTS
          • DBA_PLSQL_TYPES
          • DBA_PLSQL_COLL_TYPES
          • DBA_PLSQL_TYPE_ATTRS
          • DBA_PART_INDEXES
          • DBA_PART_KEY_COLUMNS
          • DBA_PART_TABLES
          • USER_SEQUENCES
          • DBA_POLICIES
          • DBA_POLICY_CONTEXTS
          • USER_SUBPARTITION_TEMPLATES
          • DBA_POLICY_GROUPS
          • DBA_PROCEDURES
          • DBA_PROFILES
          • DBA_RECYCLEBIN
          • USER_TAB_STATS_HISTORY
          • DBA_ROLE_PRIVS
          • DBA_RSRC_PLANS
          • DBA_SCHEDULER_JOB_ARGS
          • DBA_SCHEDULER_JOB_RUN_DETAILS
          • DBA_SCHEDULER_JOBS
          • DBA_SCHEDULER_PROGRAM
          • DBA_SCHEDULER_PROGRAM_ARGS
          • DBA_SEC_RELEVANT_COLS
          • DBA_SEGMENTS
          • DBA_SOURCE
          • USER_DEPENDENCIES
          • DBA_SQL_MANAGEMENT_CONFIG
          • USER_PART_COL_STATISTICS
          • DBA_SQL_PLAN_BASELINES
          • USER_PART_HISTOGRAMS
          • USER_SUBPART_COL_STATISTICS
          • USER_SUBPART_HISTOGRAMS
          • USER_TAB_COL_STATISTICS
          • DBA_SUBPART_KEY_COLUMNS
          • USER_TAB_HISTOGRAMS
          • USER_TAB_STATISTICS
          • DBA_SYNONYMS
          • DBA_SYS_PRIVS
          • DBA_TAB_COLS
          • DBA_TAB_COLUMNS
          • DBA_TAB_COMMENTS
          • DBA_TAB_MODIFICATIONS
          • DBA_TAB_PARTITIONS
          • DBA_TAB_PRIVS
          • DBA_TAB_SUBPARTITIONS
          • DBA_TABLES
          • DBA_TABLESPACES
          • DBA_TRIGGER_ORDERING
          • DBA_TRIGGERS
          • DBA_TYPE_ATTRS
          • DBA_TYPE_METHODS
          • DBA_TYPES
          • DBA_USERS
          • DBA_VIEWS
          • DBA_WR_ACTIVE_SESSION_HISTORY
          • DBA_WR_CONTROL
          • DBA_OB_OUTLINE_CONCURRENT_HISTORY
          • DBA_OB_OUTLINES
          • DBA_WR_STATNAME
          • DBA_OB_BACKUP_STORAGE_INFO
          • DBA_OB_BACKUP_STORAGE_INFO_HISTORY
          • DBMS_LOCK_ALLOCATED
          • DICT
          • DICTIONARY
          • NLS_DATABASE_PARAMETERS
          • NLS_INSTANCE_PARAMETERS
          • NLS_SESSION_PARAMETERS
          • PROXY_USERS
          • ROLE_ROLE_PRIVS
          • ROLE_SYS_PRIVS
          • ROLE_TAB_PRIVS
          • TENANT_VIRTUAL_GLOBAL_VARIABLE
          • TENANT_VIRTUAL_SESSION_VARIABLE
          • USER_ALL_TABLES
          • USER_ARGUMENTS
          • USER_AUDIT_OBJECT
          • USER_AUDIT_SESSION
          • USER_AUDIT_STATEMENT
          • USER_AUDIT_TRAIL
          • USER_COL_PRIVS
          • USER_CONSTRAINTS
          • USER_DB_LINKS
          • DBA_SEQUENCES
          • USER_IND_COLUMNS
          • DBA_SCHEDULER_WINDOWS
          • ALL_SCHEDULER_WINDOWS
          • USER_IND_PARTITIONS
          • DBA_OB_DATABASE_PRIVILEGE
          • USER_IND_STATISTICS
          • DBA_OB_USER_DEFINED_RULES
          • USER_IND_SUBPARTITIONS
          • USER_INDEXES
          • USER_JOBS
          • USER_OBJECTS
          • USER_PART_INDEXES
          • USER_PART_KEY_COLUMNS
          • USER_PART_TABLES
          • USER_PLSQL_TYPES
          • USER_PLSQL_COLL_TYPES
          • USER_PLSQL_TYPE_ATTRS
          • USER_POLICIES
          • USER_POLICY_CONTEXTS
          • USER_POLICY_GROUPS
          • USER_PROCEDURES
          • USER_PROFILES
          • USER_RECYCLEBIN
          • USER_ROLE_PRIVS
          • USER_SCHEDULER_JOB_ARGS
          • USER_SCHEDULER_JOBS
          • USER_SCHEDULER_PROGRAM_ARGS
          • USER_SEC_RELEVANT_COLS
          • USER_OB_SOURCE
          • USER_SEGMENTS
          • USER_SOURCE
          • USER_SUBPART_KEY_COLUMNS
          • USER_SYNONYMS
          • USER_SYS_PRIVS
          • DBA_OB_TASK_OPT_STAT_GATHER_HISTORY
          • USER_TAB_COLS
          • DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY
          • USER_TAB_COLUMNS
          • USER_TAB_COMMENTS
          • DBA_OB_TABLE_STAT_STALE_INFO
          • DBA_OB_EXTERNAL_TABLE_FILES
          • USER_TAB_MODIFICATIONS
          • ALL_OB_EXTERNAL_TABLE_FILES
          • USER_TAB_PARTITIONS
          • USER_TAB_PRIVS
          • USER_TAB_SUBPARTITIONS
          • USER_TABLES
          • USER_TABLESPACES
          • USER_TRIGGER_ORDERING
          • USER_TRIGGERS
          • USER_TYPE_ATTRS
          • USER_TYPE_METHODS
          • USER_TYPES
          • USER_USERS
          • USER_VIEWS
          • DBA_WR_SNAPSHOT
          • DBA_WR_SYSSTAT
          • DBA_WR_SYSTEM_EVENT
          • DBA_WR_EVENT_NAME
          • DBA_WR_SQLSTAT
          • DBA_WR_SYS_TIME_MODEL
          • DBA_WR_SQLTEXT
        • Performance views
          • GV$ACTIVE_SESSION_HISTORY
          • GV$DBLINK
          • GV$GLOBAL_TRANSACTION
          • GV$OB_KVCACHE
          • GV$INSTANCE
          • GV$OB_MEMORY
          • GV$OB_MEMSTORE
          • GV$OB_PX_TARGET_MONITOR
          • GV$OB_ACTIVE_SESSION_HISTORY
          • GV$OB_ARBITRATION_MEMBER_INFO
          • GV$OB_TABLET_COMPACTION_PROGRESS
          • GV$OB_COMPACTION_DIAGNOSE_INFO
          • GV$OB_COMPACTION_PROGRESS
          • GV$OB_COMPACTION_SUGGESTIONS
          • GV$OB_GLOBAL_TRANSACTION
          • GV$OB_LOG_STAT
          • GV$OB_SERVER_SCHEMA_INFO
          • GV$OB_LOG_TRANSPORT_DEST_STAT
          • GV$OB_MEMSTORE_INFO
          • GV$OB_SQL_WORKAREA_MEMORY_INFO
          • GV$OB_OPT_STAT_GATHER_MONITOR
          • GV$OB_PARAMETERS
          • GV$OB_PL_CACHE_OBJECT
          • GV$OB_PROCESSLIST
          • GV$OB_PLAN_CACHE_STAT
          • GV$OB_PS_STAT
          • GV$OB_PX_WORKER_STAT
          • GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • GV$OB_RES_MGR_SYSSTAT
          • GV$OB_SESSION
          • GV$OB_SESSION_PS_INFO
          • GV$SQL_WORKAREA_ACTIVE
          • GV$OB_TABLET_COMPACTION_HISTORY
          • GV$SYSTEM_EVENT
          • GV$OB_TENANT_RESOURCE_LIMIT
          • GV$OB_SSTABLES
          • GV$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • GV$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_TRANSACTION_SCHEDULERS
          • GV$OB_UNITS
          • GV$OPEN_CURSOR
          • GV$OB_PLAN_CACHE_PLAN_EXPLAIN
          • GV$OB_PLAN_CACHE_PLAN_STAT
          • V$OB_KVCACHE
          • GV$OB_PS_ITEM_INFO
          • V$OB_PX_TARGET_MONITOR
          • GV$SESSION_WAIT
          • GV$SESSION_WAIT_HISTORY
          • V$OB_TABLET_COMPACTION_PROGRESS
          • GV$SESSTAT
          • GV$OB_SQL_AUDIT
          • GV$SQL_JOIN_FILTER
          • GV$SQL_PLAN_MONITOR
          • GV$SQL_WORKAREA
          • V$OB_MEMORY
          • GV$SQL_WORKAREA_HISTOGRAM
          • GV$SYSSTAT
          • V$OB_SQL_WORKAREA_MEMORY_INFO
          • V$OB_PLAN_CACHE_PLAN_EXPLAIN
          • GV$OB_TENANT_MEMORY
          • GV$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_PLAN_CACHE_STAT
          • GV$OB_LOCKS
          • V$OB_PS_STAT
          • V$SQL_WORKAREA_ACTIVE
          • V$SYSTEM_EVENT
          • V$VERSION
          • V$SQL_MONITOR_STATNAME
          • V$ENCRYPTED_TABLESPACES
          • V$OB_SSTABLES
          • V$EVENT_NAME
          • GV$DML_STATS
          • V$DML_STATS
          • GV$OB_DTL_INTERM_RESULT_MONITOR
          • V$OB_DTL_INTERM_RESULT_MONITOR
          • GV$OB_THREAD
          • V$OB_THREAD
          • GV$OB_ARBITRATION_MEMBER_INFO
          • V$OB_ARBITRATION_MEMBER_INFO
          • GV$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_TIMESTAMP_SERVICE
          • GV$OB_PX_P2P_DATAHUB
          • V$OB_PX_P2P_DATAHUB
          • GV$OB_SQL_PLAN
          • V$OB_SQL_PLAN
          • GV$OB_FLT_TRACE_CONFIG
          • GV$OB_SQLSTAT
          • V$OB_SQLSTAT
          • GV$OB_SESS_TIME_MODEL
          • V$OB_SESS_TIME_MODEL
          • GV$OB_SYS_TIME_MODEL
          • V$OB_SYS_TIME_MODEL
          • V$STATNAME
          • GV$OB_CGROUP_CONFIG
          • V$OB_CGROUP_CONFIG
          • V$ACTIVE_SESSION_HISTORY
          • V$DBLINK
          • V$OB_ENCRYPTED_TABLES
          • V$GLOBAL_TRANSACTION
          • V$GLOBALCONTEXT
          • V$INSTANCE
          • V$OB_MEMSTORE
          • V$NLS_PARAMETERS
          • V$OB_ACTIVE_SESSION_HISTORY
          • V$OB_ARBITRATION_MEMBER_INFO
          • V$OB_ARCHIVE_DEST_STATUS
          • V$OB_COMPACTION_DIAGNOSE_INFO
          • V$OB_COMPACTION_PROGRESS
          • V$OB_COMPACTION_SUGGESTIONS
          • V$OB_GLOBAL_TRANSACTION
          • V$OB_LOG_TRANSPORT_DEST_STAT
          • V$OB_LOG_STAT
          • V$OB_LS_LOG_RESTORE_STATUS
          • V$OB_MEMSTORE_INFO
          • V$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_PARAMETERS
          • V$OB_PL_CACHE_OBJECT
          • V$OB_PROCESSLIST
          • V$OB_PX_WORKER_STAT
          • V$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • V$OB_RES_MGR_SYSSTAT
          • V$OB_SERVER_SCHEMA_INFO
          • V$OB_SESSION
          • V$OB_SESSION_PS_INFO
          • V$OB_TABLET_COMPACTION_HISTORY
          • V$OB_TENANT_RESOURCE_LIMIT
          • V$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • V$OB_TRANSACTION_PARTICIPANTS
          • V$OB_TRANSACTION_SCHEDULERS
          • V$OB_UNITS
          • V$OPEN_CURSOR
          • V$OB_PLAN_CACHE_PLAN_STAT
          • V$OB_PS_ITEM_INFO
          • V$RSRC_PLAN
          • V$SESSION_WAIT
          • V$SESSION_WAIT_HISTORY
          • V$SESSTAT
          • V$OB_SQL_AUDIT
          • V$SQL_JOIN_FILTER
          • V$SQL_PLAN_MONITOR
          • V$SQL_WORKAREA
          • V$SQL_WORKAREA_HISTOGRAM
          • V$RESTORE_POINT
          • V$SYSSTAT
          • V$OB_TENANT_MEMORY
          • V$TIMEZONE_NAMES
          • V$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_LOCKS
          • V$OB_LS_REPLICA_TASK_PLAN
      • Common statistical events
      • General wait events
    • Parameters and system variables
      • Overview
      • Changes in parameters and system variables from V3.x to V4.x
      • Parameters
        • Overview of parameters
        • Cluster-level parameters
          • alert_log_level
          • all_cluster_list
          • all_server_list
          • arbitration_degradation_policy
          • auto_broadcast_location_cache_rate_limit
          • auto_leader_switch_interval
          • auto_refresh_location_cache_rate_limit
          • autoinc_cache_refresh_interval
          • backup_backup_dest
          • backup_backup_dest_option
          • backup_concurrency
          • backup_dest
          • backup_dest_option
          • backup_log_archive_option
          • backup_net_limit
          • backup_recovery_window
          • backup_region
          • backup_zone
          • balance_blacklist_failure_threshold
          • balance_blacklist_retry_interval
          • balancer_emergency_percentage
          • balancer_log_interval
          • balancer_task_timeout
          • balancer_timeout_check_interval
          • balancer_tolerance_percentage
          • bf_cache_miss_count_threshold
          • bf_cache_priority
          • builtin_db_data_verify_cycle
          • cache_wash_threshold
          • clog_cache_priority
          • clog_disk_usage_limit_percentage
          • clog_disk_utilization_threshold
          • clog_expire_days
          • clog_sync_time_warn_threshold
          • clog_transport_compress_func
          • cluster
          • cluster_id
          • config_additional_dir
          • cpu_count
          • cpu_reserved
          • data_copy_concurrency
          • data_dir
          • data_disk_usage_limit_percentage
          • data_disk_write_limit_percentage
          • data_storage_error_tolerance_time
          • data_storage_warning_tolerance_time
          • datafile_disk_percentage
          • datafile_maxsize
          • datafile_next
          • datafile_size
          • dead_socket_detection_timeout
          • debug_sync_timeout
          • default_compress
          • default_compress_func
          • default_row_format
          • default_transport_compress_func
          • devname
          • diag_syslog_per_error_limit
          • disk_io_thread_count
          • dtl_buffer_size
          • election_blacklist_interval
          • election_cpu_quota
          • enable_asan_for_memory_context
          • enable_async_syslog
          • enable_auto_leader_switch
          • enable_auto_refresh_location_cache
          • enable_cgroup
          • enable_dblink
          • enable_ddl
          • enable_election_group
          • enable_global_background_resource_isolation
          • enable_global_freeze_trigger
          • enable_log_archive
          • enable_major_freeze
          • enable_manual_merge
          • enable_merge_by_turn
          • enable_ob_esi_process
          • enable_ob_ratelimit
          • enable_one_phase_commit
          • enable_perf_event
          • enable_pg
          • enable_record_trace_id
          • enable_record_trace_log
          • enable_rereplication
          • enable_rich_error_msg
          • enable_rootservice_standalone
          • enable_separate_sys_clog
          • enable_smooth_leader_switch
          • enable_sql_audit
          • enable_sql_operator_dump
          • enable_sys_table_ddl
          • enable_sys_unit_standalone
          • enable_syslog_recycle
          • enable_syslog_wf
          • enable_tcp_keepalive
          • enable_upgrade_mode
          • fast_recovery_concurrency
          • flush_log_at_trx_commit
          • fuse_row_cache_priority
          • gc_wait_archive
          • get_leader_candidate_rpc_timeout
          • global_background_cpu_quota
          • global_index_build_single_replica_timeout
          • global_major_freeze_residual_memory
          • global_write_halt_residual_memory
          • high_priority_net_thread_count
          • ignore_replay_checksum_error
          • ignore_replica_checksum_error
          • ilog_index_expire_time
          • index_block_cache_priority
          • index_cache_priority
          • index_clog_cache_priority
          • index_info_block_cache_priority
          • internal_sql_execute_timeout
          • large_query_threshold
          • large_query_worker_percentage
          • leak_mod_to_check
          • lease_time
          • local_ip
          • location_cache_cpu_quota
          • location_cache_expire_time
          • location_cache_priority
          • location_cache_refresh_min_interval
          • location_cache_refresh_rpc_timeout
          • location_cache_refresh_sql_timeout
          • location_fetch_concurrency
          • location_refresh_thread_count
          • log_archive_batch_buffer_limit
          • log_archive_checkpoint_interval
          • log_disk_percentage
          • log_disk_size
          • log_storage_warning_trigger_percentage
          • log_storage_warning_tolerance_time
          • ls_meta_table_check_interval
          • max_kept_major_version_number
          • max_px_worker_count
          • max_string_print_length
          • max_syslog_file_count
          • memory_chunk_cache_size
          • memory_limit
          • memory_limit_percentage
          • memory_reserved
          • memstore_limit_percentage
          • merge_stat_sampling_ratio
          • merge_thread_count
          • merger_completion_percentage
          • merger_switch_leader_duration_time
          • merger_warm_up_duration_time
          • micro_block_merge_verify_level
          • migrate_concurrency
          • migration_disable_time
          • min_observer_version
          • minor_deferred_gc_time
          • minor_freeze_times
          • minor_merge_concurrency
          • minor_warm_up_duration_time
          • multiblock_read_gap_size
          • multiblock_read_size
          • mysql_port
          • net_thread_count
          • ob_esi_io_concurrency
          • ob_esi_max_syslog_file_count
          • ob_esi_memory_limit
          • ob_esi_rpc_port
          • ob_esi_session_timeout
          • ob_esi_syslog_level
          • rdma_io_thread_count
          • ob_event_history_recycle_interval
          • ob_ratelimit_stat_period
          • ob_startup_mode
          • ob_storage_s3_url_encode_type
          • obconfig_url
          • observer_id
          • ofs_list
          • opt_tab_stat_cache_priority
          • partition_table_check_interval
          • plan_cache_evict_interval
          • plan_cache_high_watermark
          • plan_cache_low_watermark
          • px_task_size
          • px_workers_per_cpu_quota
          • rebuild_replica_data_lag_threshold
          • recyclebin_object_expire_time
          • replica_safe_remove_time
          • resource_hard_limit
          • resource_soft_limit
          • restore_concurrency
          • rootservice_async_task_queue_size
          • rootservice_async_task_thread_count
          • rootservice_list
          • rootservice_memory_limit
          • rootservice_ready_check_interval
          • row_compaction_update_limit
          • row_purge_thread_count
          • rpc_client_authentication_method
          • rpc_port
          • rpc_server_authentication_method
          • rpc_timeout
          • schema_history_expire_time
          • schema_history_recycle_interval
          • server_balance_cpu_mem_tolerance_percent
          • server_balance_critical_disk_waterlevel
          • server_balance_disk_tolerance_percent
          • server_check_interval
          • server_cpu_quota_max
          • server_cpu_quota_min
          • server_data_copy_in_concurrency
          • server_data_copy_out_concurrency
          • server_permanent_offline_time
          • sql_audit_memory_limit
          • sql_login_thread_count
          • sql_net_thread_count
          • sql_protocol_min_tls_version
          • ssl_client_authentication
          • ssl_external_kms_info
          • stack_size
          • standby_fetch_log_bandwidth_limit
          • storage_meta_cache_priority
          • strict_check_os_params
          • switchover_process_thread_count
          • sys_bkgd_io_high_percentage
          • sys_bkgd_io_low_percentage
          • sys_bkgd_migration_change_member_list_timeout
          • sys_bkgd_migration_retry_num
          • sys_bkgd_net_percentage
          • sys_cpu_limit_trigger
          • syslog_compress_func
          • syslog_disk_size
          • syslog_file_uncompressed_count
          • syslog_io_bandwidth_limit
          • syslog_level
          • system_cpu_quota
          • system_memory
          • system_trace_level
          • tablet_ls_cache_priority
          • tablet_meta_table_check_interval
          • tablet_meta_table_scan_batch_count
          • tablet_size
          • tcp_keepcnt
          • tcp_keepidle
          • tcp_keepintvl
          • tenant_cpu_variation_per_server
          • tenant_groups
          • tenant_task_queue_size
          • token_reserved_percentage
          • trace_log_sampling_interval
          • trace_log_slow_query_watermark
          • trx_2pc_retry_interval
          • trx_force_kill_threshold
          • trx_try_wait_lock_timeout
          • unit_balance_resource_weight
          • unit_gc_wait_time
          • use_large_pages
          • user_block_cache_priority
          • user_iort_up_percentage
          • user_row_cache_priority
          • user_tab_col_stat_cache_priority
          • utl_file_open_max
          • virtual_table_location_cache_expire_time
          • wait_leader_batch_count
          • weak_read_version_refresh_interval
          • workers_per_cpu_quota
          • zone
          • zone_merge_concurrency
          • zone_merge_order
          • zone_merge_timeout
        • Tenant-level parameters
          • arbitration_timeout
          • archive_lag_target
          • audit_log_buffer_size
          • audit_log_compression
          • audit_log_enable
          • audit_log_format
          • audit_log_max_size
          • audit_log_path
          • audit_log_prune_seconds
          • audit_log_query_sql
          • audit_log_rotate_on_size
          • audit_log_strategy
          • audit_sys_operations
          • audit_trail
          • backup_data_file_size
          • balancer_idle_time
          • choose_migration_source_policy
          • clog_max_unconfirmed_log_count
          • clog_persistence_compress_func
          • compaction_dag_cnt_limit
          • compaction_high_thread_score
          • compaction_low_thread_score
          • compaction_mid_thread_score
          • compaction_schedule_tablet_batch_cnt
          • compatible
          • connection_control_failed_connections_threshold
          • connection_control_max_connection_delay
          • connection_control_min_connection_delay
          • cpu_quota_concurrency
          • ddl_thread_score
          • default_auto_increment_mode
          • default_enable_extended_rowid
          • default_progressive_merge_num
          • dump_data_dictionary_to_log_interval
          • enable_clog_persistence_compress
          • enable_early_lock_release
          • enable_gts_standalone
          • enable_kv_group_commit
          • enable_kv_ttl
          • enable_lock_priority
          • enable_ls_leader_balance
          • enable_monotonic_weak_read
          • enable_rebalance
          • enable_sql_extension
          • enable_transfer
          • enable_user_defined_rewrite_rules
          • plsql_warnings
          • enable_ps_parameterize
          • external_kms_info
          • freeze_trigger_percentage
          • ha_high_thread_score
          • ha_low_thread_score
          • ha_mid_thread_score
          • io_category_config
          • job_queue_processes
          • json_document_max_depth
          • kv_group_commit_batch_size
          • kv_group_commit_rw_mode
          • kv_transport_compress_func
          • kv_transport_compress_threshold
          • kv_ttl_duty_duration
          • kv_ttl_history_recycle_interval
          • lob_enable_block_cache_threshold
          • log_archive_concurrency
          • log_disk_throttling_maximum_duration
          • log_disk_throttling_percentage
          • log_disk_utilization_limit_threshold
          • log_disk_utilization_threshold
          • log_restore_concurrency
          • log_storage_compress_all
          • log_storage_compress_func
          • log_transport_compress_all
          • log_transport_compress_func
          • ls_gc_delay_time
          • ls_scale_out_factor
          • major_compact_trigger
          • major_freeze_duty_time
          • max_partition_num
          • max_stale_time_for_weak_consistency
          • merger_check_interval
          • minor_compact_trigger
          • ob_compaction_schedule_interval
          • ob_enable_batched_multi_statement
          • ob_proxy_readonly_transaction_routing_policy
          • ob_query_switch_leader_retry_timeout
          • ob_ssl_invited_common_names
          • open_cursors
          • optimizer_index_cost_adj
          • partition_balance_schedule_interval
          • plsql_code_type
          • plsql_debug
          • plsql_optimize_level
          • plsql_v2_compatibility
          • ob_deterministic_udf_cache_max_size
          • query_memory_limit_percentage
          • query_response_time_flush
          • query_response_time_range_base
          • query_response_time_stats
          • range_optimizer_max_mem_size
          • recover_table_concurrency
          • recover_table_dop
          • replica_parallel_migration_mode
          • rpc_memory_limit_percentage
          • sql_work_area
          • standby_db_fetch_log_rpc_timeout
          • standby_db_preferred_upstream_log_region
          • sts_credential
          • tde_method
          • temporary_file_max_disk_size
          • tenant_sql_login_thread_count
          • tenant_sql_net_thread_count
          • ttl_thread_score
          • undo_retention
          • workarea_size_policy
          • writing_throttling_maximum_duration
          • writing_throttling_trigger_percentage
          • zone_deploy_mode
      • System variables
        • Overview
        • Global variables
          • activate_all_roles_on_login
          • auto_increment_cache_size
          • auto_increment_increment
          • auto_increment_offset
          • autocommit
          • automatic_sp_privileges
          • binlog_row_image
          • block_encryption_mode
          • cardinality_estimation_model
          • character_set_client
          • character_set_connection
          • character_set_database
          • character_set_filesystem
          • character_set_results
          • character_set_server
          • character_set_system
          • collation_connection
          • collation_database
          • collation_server
          • connect_timeout
          • cte_max_recursion_depth
          • cursor_sharing
          • datadir
          • debug_sync
          • default_password_lifetime
          • default_storage_engine
          • div_precision_increment
          • error_on_overlap_time
          • event_scheduler
          • explicit_defaults_for_timestamp
          • foreign_key_checks
          • group_concat_max_len
          • identity
          • init_connect
          • innodb_strict_mode
          • innodb_stats_persistent
          • interactive_timeout
          • lc_time_names
          • license
          • log_row_value_options
          • lower_case_table_names
          • max_allowed_packet
          • max_connections
          • max_sp_recursion_depth
          • max_user_connections
          • net_buffer_length
          • net_read_timeout
          • net_write_timeout
          • nls_calendar
          • nls_characterset
          • nls_comp
          • nls_currency
          • nls_date_format
          • nls_date_language
          • nls_dual_currency
          • nls_iso_currency
          • nls_length_semantics
          • nls_nchar_characterset
          • nls_nchar_conv_excp
          • nls_numeric_characters
          • nls_sort
          • nls_territory
          • nls_timestamp_format
          • nls_timestamp_tz_format
          • ob_bnl_join_cache_size
          • ob_create_table_strict_mode
          • ob_compatibility_mode
          • ob_compatibility_control
          • ob_compatibility_version
          • ob_default_lob_inrow_threshold
          • ob_default_replica_num
          • ob_enable_blk_nestedloop_join
          • ob_enable_trace_log
          • ob_enable_rich_error_msg
          • ob_enable_pl_cache
          • ob_enable_parameter_anonymous_block
          • ob_early_lock_release
          • ob_enable_hash_group_by
          • ob_enable_aggregation_pushdown
          • ob_enable_index_direct_select
          • ob_enable_jit
          • ob_enable_plan_cache
          • ob_enable_sql_audit
          • ob_enable_transformation
          • ob_enable_transmission_checksum
          • ob_enable_truncate_flashback
          • ob_global_debug_sync
          • ob_log_level
          • ob_max_read_stale_time
          • ob_pl_block_timeout
          • ob_plan_cache_evict_high_percentage
          • ob_plan_cache_evict_low_percentage
          • ob_plan_cache_percentage
          • ob_proxy_global_variables_version
          • ob_query_timeout
          • ob_read_consistency
          • ob_reserved_meta_memory_percentage
          • ob_route_policy
          • ob_security_version
          • ob_sql_audit_percentage
          • ob_sql_work_area_percentage
          • ob_tcp_invited_nodes
          • ob_temp_tablespace_size_percentage
          • ob_timestamp_service
          • ob_trx_idle_timeout
          • ob_trx_lock_timeout
          • ob_trx_timeout
          • optimizer_capture_sql_plan_baselines
          • optimizer_dynamic_sampling
          • optimizer_features_enable
          • optimizer_use_sql_plan_baselines
          • parallel_degree_limit
          • parallel_degree_policy
          • parallel_max_servers
          • parallel_min_scan_time_threshold
          • parallel_servers_target
          • partition_index_dive_limit
          • performance_schema
          • pid_file
          • plugin_dir
          • plsql_optimize_level
          • port
          • query_cache_size
          • query_cache_type
          • range_index_dive_limit
          • read_only
          • recyclebin
          • regexp_stack_limit
          • regexp_time_limit
          • resource_manager_plan
          • secure_file_priv
          • socket
          • sql_auto_is_null
          • sql_mode
          • sql_quote_show_create
          • sql_safe_updates
          • sql_select_limit
          • sql_throttle_current_priority
          • sql_throttle_network
          • sql_throttle_priority
          • sql_throttle_rt
          • sql_warnings
          • system_time_zone
          • time_zone
          • transaction_isolation
          • transaction_read_only
          • tx_isolation
          • tx_read_only
          • version
          • version_comment
          • wait_timeout
          • validate_password_check_user_name
          • validate_password_length
          • validate_password_mixed_case_count
          • validate_password_number_count
          • validate_password_policy
          • validate_password_special_char_count
          • server_uuid
          • runtime_filter_type
          • runtime_filter_wait_time_ms
          • runtime_filter_max_in_num
          • runtime_bloom_filter_max_size
        • Session-level variables
          • auto_increment_increment
          • auto_increment_offset
          • autocommit
          • binlog_row_image
          • block_encryption_mode
          • character_set_client
          • character_set_database
          • character_set_filesystem
          • character_set_results
          • character_set_server
          • character_set_system
          • collation_connection
          • collation_database
          • collation_server
          • cte_max_recursion_depth
          • cursor_sharing
          • default_storage_engine
          • div_precision_increment
          • error_on_overlap_time
          • explicit_defaults_for_timestamp
          • foreign_key_checks
          • group_concat_max_len
          • identity
          • innodb_strict_mode
          • cardinality_estimation_model
          • interactive_timeout
          • is_result_accurate
          • last_insert_id
          • lc_time_names
          • max_allowed_packet
          • max_sp_recursion_depth
          • max_user_connections
          • net_buffer_length
          • net_read_timeout
          • net_write_timeout
          • nls_calendar
          • nls_comp
          • nls_currency
          • nls_date_format
          • nls_date_language
          • nls_dual_currency
          • nls_iso_currency
          • nls_language
          • nls_length_semantics
          • nls_nchar_conv_excp
          • nls_numeric_characters
          • nls_sort
          • nls_territory
          • nls_timestamp_format
          • nls_timestamp_tz_format
          • ob_bnl_join_cache_size
          • ob_capability_flag
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System views overview

Last Updated:2026-04-09 09:38:52  Updated
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What is on this page
Overview of views in the sys tenant
Dictionary views overview
Overview of performance views
Overview of views in a MySQL tenant
Dictionary views overview
Overview of performance views
Overview of views in an Oracle tenant
Dictionary views overview
Overview of performance views

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Overview of views in the sys tenant

Dictionary views overview

Views and columns

View name Description
oceanbase.CDB_IND_COLUMNS This view displays the column information of the index tables of all tenants.
oceanbase.CDB_INDEXES This view displays the INDEX information of all tenants.
oceanbase.CDB_TABLES This view displays the TABLE information of all tenants.
oceanbase.CDB_OB_TABLEGROUP_TABLES This view displays the association between the TABLEGROUP and TABLE of all tenants in the sys tenant. Tables not in a TABLEGROUP are not displayed.
oceanbase.CDB_TAB_COLS This view displays the column information of the tables and views of all tenants.
oceanbase.CDB_TAB_COLS_V$ This view displays the column information of the tables and views of all tenants.
oceanbase.DBA_OB_TABLEGROUP_TABLES This view displays the association between the TABLEGROUP and TABLE. Tables not in a TABLEGROUP are not displayed.
oceanbase.DBA_PART_KEY_COLUMNS This view displays the columns of the partitioning key in all partitioning objects.
oceanbase.DBA_SUBPART_KEY_COLUMNS This view displays the columns of the subpartitioning key in all subpartitioning objects.
oceanbase.CDB_OB_COLUMN_CHECKSUM_ERROR_INFO This view displays the column checksum inconsistency information between the index tables (including global indexes and local indexes) and the primary tables.
oceanbase.CDB_OB_TABLE_LOCATIONS This view displays the location of a table or partition, including system tables, user tables, and index tables.
oceanbase.DBA_OB_TABLE_LOCATIONS This view displays the location of a table or partition, including system tables, user tables, and index tables.
information_schema.TABLESPACES This view displays the information about tablespaces.

Note

This view is available starting with MySQL 5.7. The related features are not supported. You can only query the table structure.

Backup and restore

View name Description
oceanbase.CDB_OB_RESTORE_PROGRESS Displays the current execution progress of physical restore tasks.
oceanbase.CDB_OB_RESTORE_HISTORY Displays the status of physical restore tasks upon completion.
oceanbase.CDB_OB_ARCHIVELOG_PIECE_FILES Displays the status of pieces in a backup set.
oceanbase.CDB_OB_BACKUP_SET_FILES Displays the file status of a backup set.
oceanbase.CDB_OB_BACKUP_JOBS Displays backup jobs for all tenants in the cluster. One job record is created for each backup task initiated by a user.
oceanbase.CDB_OB_BACKUP_JOB_HISTORY Displays the historical records of backup jobs for all tenants in the cluster.
oceanbase.CDB_OB_BACKUP_TASKS Displays task-level backup tasks for all tenants in the cluster. One task record corresponds to one backup set. Task records and job records are in a one-to-one correspondence.
oceanbase.CDB_OB_BACKUP_TASK_HISTORY Displays the historical records of task-level backup tasks for all tenants in the cluster.
oceanbase.DBA_OB_BACKUP_JOBS Displays backup jobs for the current tenant.
oceanbase.DBA_OB_BACKUP_JOB_HISTORY Displays the historical records of backup jobs for the current tenant.
oceanbase.DBA_OB_BACKUP_TASKS Displays the historical records of backup jobs for the current tenant.
oceanbase.DBA_OB_BACKUP_TASK_HISTORY Displays the historical records of task-level backup tasks for the current tenant.
oceanbase.DBA_OB_BACKUP_SET_FILES Displays the file status of a backup set.
oceanbase.DBA_OB_RESTORE_PROGRESS Displays the progress of ongoing restore tasks.
oceanbase.DBA_OB_RESTORE_HISTORY Displays the status of completed restore tasks.
oceanbase.DBA_OB_ARCHIVE_DEST Displays the archive path configuration.
oceanbase.CDB_OB_ARCHIVE_DEST Displays the archive path configuration.
oceanbase.CDB_OB_BACKUP_PARAMETER Displays backup parameters.
oceanbase.CDB_OB_BACKUP_DELETE_JOBS Displays the execution progress of tenant-level backup cleanup jobs.
oceanbase.CDB_OB_BACKUP_DELETE_JOB_HISTORY This view displays the history of backup cleanup tasks that have been executed in the tenant.
oceanbase.CDB_OB_BACKUP_DELETE_TASKS This view displays the information about backup_set/backup_piece cleanup tasks that are being executed in the tenant.
oceanbase.CDB_OB_BACKUP_DELETE_TASK_HISTORY This view displays the history of backup_set/backup_piece cleanup tasks that have been completed in the tenant.
oceanbase.CDB_OB_BACKUP_DELETE_POLICY This view displays the cleanup policies set for expired or automatic cleanup in the tenant.
oceanbase.CDB_OB_BACKUP_STORAGE_INFO This view displays the information about the backup destination used for backup and restore in the tenant.
oceanbase.CDB_OB_BACKUP_STORAGE_INFO_HISTORY This view displays the history of the backup destination used for backup and restore in the tenant.
oceanbase.DBA_OB_BACKUP_STORAGE_INFO This view displays the information about the backup destination used for backup and restore in the tenant.
oceanbase.DBA_OB_BACKUP_STORAGE_INFO_HISTORY This view displays the history of the backup destination used for backup and restore in the tenant.
oceanbase.DBA_OB_BACKUP_DELETE_POLICY This view displays the cleanup policies set for expired or automatic cleanup in the tenant.
oceanbase.DBA_OB_BACKUP_DELETE_JOBS This view displays the execution progress of backup cleanup jobs at the tenant level.
oceanbase.DBA_OB_BACKUP_DELETE_JOB_HISTORY This view displays the history of backup cleanup tasks that have been executed in the tenant.
oceanbase.DBA_OB_BACKUP_DELETE_TASKS This view displays the information about backup_set/backup_piece cleanup tasks that are being executed in the tenant.
oceanbase.DBA_OB_BACKUP_DELETE_TASK_HISTORY This view displays the history of backup_set/backup_piece cleanup tasks that have been completed in the tenant.
oceanbase.DBA_OB_ARCHIVELOG This view displays the status of log backups on each path.
oceanbase.DBA_OB_ARCHIVELOG_SUMMARY This view displays the status of all log backups, including historical and current ones.
oceanbase.DBA_OB_ARCHIVELOG_PIECE_FILES This view displays the status of pieces in a backup set.
oceanbase.CDB_OB_ARCHIVELOG This view displays the status of log archiving on each path.
oceanbase.CDB_OB_ARCHIVELOG_SUMMARY This view displays the status of all log archiving, including historical and current ones.
oceanbase.CDB_OB_RECOVER_TABLE_JOBS This view displays information about table-level restore tasks.
oceanbase.DBA_OB_RECOVER_TABLE_JOBS This view displays information about table-level restore tasks.
oceanbase.CDB_OB_IMPORT_TABLE_JOBS This view displays information about import tasks.
oceanbase.DBA_OB_IMPORT_TABLE_JOBS This view displays information about import tasks.
oceanbase.CDB_OB_IMPORT_TABLE_TASKS This view displays records of table-level cross-tenant import tasks.
oceanbase.DBA_OB_IMPORT_TABLE_TASKS This view displays records of table-level import tasks.
oceanbase.CDB_OB_RECOVER_TABLE_JOB_HISTORY This view displays the results of table-level restore tasks.
oceanbase.DBA_OB_RECOVER_TABLE_JOB_HISTORY This view displays the results of table-level restore tasks.
oceanbase.CDB_OB_IMPORT_TABLE_JOB_HISTORY This view displays the results of import tasks.
oceanbase.DBA_OB_IMPORT_TABLE_JOB_HISTORY This view displays the results of import tasks.
oceanbase.CDB_OB_IMPORT_TABLE_TASK_HISTORY This view displays the history records of table-level cross-tenant import tasks.
oceanbase.DBA_OB_IMPORT_TABLE_TASK_HISTORY This view displays the history records of table-level cross-tenant import tasks.

Partition related

View name Description
oceanbase.CDB_IND_PARTITIONS This view displays the definitions of index partitioning in all tenants.
oceanbase.CDB_PART_INDEXES This view displays the partition information of the index tables of all tenants.
oceanbase.CDB_PART_TABLES This view displays the partitioning information of all partitioned tables.
oceanbase.CDB_SUBPARTITION_TEMPLATES This view displays the subpartition templates of partitioned tables in all tenants.
oceanbase.CDB_TAB_PARTITIONS Displays primary partition information of all partitioned tables in all tenants.
oceanbase.CDB_TAB_SUBPARTITIONS This view displays the subpartition information of partitioned tables for all tenants.
oceanbase.DBA_IND_PARTITIONS This view displays the partitioning information about indexes.
oceanbase.DBA_PART_INDEXES This view displays the partition information of all partitioned indexes.
oceanbase.DBA_PART_TABLES This view displays user-defined table partitions.
oceanbase.DBA_TAB_PARTITIONS Displays the partition information, storage parameters, and statistics of all partitions of all tables that the current user has access to.
oceanbase.DBA_TAB_SUBPARTITIONS Displays the names of all subpartitions, tables, partitions, storage attributes, and statistics generated by the DBMS_STATS package.
oceanbase.DBA_SUBPARTITION_TEMPLATES Description

Load balancing

View name Description
oceanbase.CDB_OB_OBJECT_BALANCE_WEIGHT This view displays all partitions with special weights in all user tenants.
oceanbase.CDB_OB_TRANSFER_PARTITION_TASKS Displays all partition transfer tasks being processed by all tenants.
oceanbase.CDB_OB_TRANSFER_PARTITION_TASK_HISTORY This view displays the Transfer Partition task history of all tenants.
oceanbase.DBA_OB_TRANSFER_PARTITION_TASKS This view displays the status of transfer partition tasks being processed in the current tenant.
oceanbase.DBA_OB_TRANSFER_PARTITION_TASK_HISTORY This view displays the history of executed transfer partition tasks in this tenant.

Replica and log-related

View name Description
oceanbase.CDB_IND_SUBPARTITIONS This view displays information about all index subpartitions in the database.
oceanbase.CDB_OB_LS_LOCATIONS This view displays the distribution of log streams (LS) replicas for all tenants.
oceanbase.CDB_OB_TABLEGROUPS This view displays the metadata of all table groups for all tenants under the sys tenant, mainly focusing on partition information.
oceanbase.CDB_OB_TABLEGROUP_PARTITIONS This view displays the primary partition information of all partitioned table groups for all tenants under the sys tenant.
oceanbase.CDB_OB_TABLEGROUP_SUBPARTITIONS This view displays the secondary partition information of all partitioned table groups for all tenants under the sys tenant.
oceanbase.CDB_OB_TABLET_TO_LS This view displays the list of all tablets and the log stream information to which each tablet belongs under the sys tenant.
oceanbase.CDB_OB_TABLET_REPLICAS This view displays all tablet replicas for the current tenant. Each tablet replica is uniquely identified by the composite key: <TENANT_ID, TABLET_ID, SVR_IP, SVR_PORT, LS_ID>.
oceanbase.CDB_PART_KEY_COLUMNS This view displays the primary partition key information for all tenants' partitioned objects (partitioned tables and partitioned indexes).
oceanbase.CDB_SUBPART_KEY_COLUMNS This view displays the secondary partition key information for all tenants' partitioned objects (partitioned tables and partitioned indexes).
oceanbase.DBA_IND_SUBPARTITIONS This view displays information about all index subpartitions in the database.
oceanbase.DBA_OB_TABLEGROUP_PARTITIONS This view displays the primary partition information of all partitioned table groups.
oceanbase.DBA_OB_TABLEGROUP_SUBPARTITIONS This view displays the secondary partition information of all partitioned table groups.
oceanbase.DBA_OB_TABLEGROUPS This view displays the metadata of all table groups, mainly focusing on partition information.
oceanbase.DBA_OB_TABLET_REPLICAS This view displays all tablet replicas for the current tenant. Each tablet replica is uniquely identified by the composite key: <TABLET_ID, SVR_IP, SVR_PORT, LS_ID>.
oceanbase.DBA_OB_TABLET_TO_LS This view displays the list of all tablets and the log stream information to which each tablet belongs for the current tenant.
oceanbase.DBA_OB_LS_LOCATIONS This view displays the distribution of log streams (LS) replicas for the current tenant.
oceanbase.CDB_OB_TABLET_CHECKSUM_ERROR_INFO This view displays information about data inconsistencies between tablet replicas.
oceanbase.CDB_OB_LS This view displays the status and recovery progress of log streams.
oceanbase.DBA_OB_LS This view displays the status and recovery progress of log streams.
DBA_OB_LS_REPLICA_TASK_HISTORY This view displays the execution history of disaster recovery tasks.
CDB_OB_LS_REPLICA_TASK_HISTORY This view displays the execution history of disaster recovery tasks.

Major compaction related

View name Description
oceanbase.CDB_OB_DATABASES This view displays the database metadata of all tenants under the sys tenant.
oceanbase.CDB_OB_MAJOR_COMPACTION This view displays the global major compaction information of all tenants under the sys tenant.
oceanbase.CDB_OB_ZONE_MAJOR_COMPACTION This view displays the major compaction information of all zones of all tenants under the sys tenant.
oceanbase.DBA_OB_DATABASES This view displays the database metadata of the current tenant.
oceanbase.DBA_OB_MAJOR_COMPACTION This view displays the global major compaction information of the current tenant.
oceanbase.DBA_OB_ROOTSERVICE_EVENT_HISTORY This view displays the event history of the Root Service.
oceanbase.DBA_OB_SERVER_JOBS This view displays the tasks of all OBServer nodes.
oceanbase.DBA_OB_SERVERS This view displays the information of all OBServer nodes.
oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION This view displays the major compaction information of all zones of the current tenant.
oceanbase.DBA_OB_ZONES This view displays the information of all zones.
oceanbase.CDB_OB_FREEZE_INFO This view displays the version information generated by major compaction (major_freeze).
oceanbase.DBA_OB_FREEZE_INFO This view displays the version information generated by major compaction (major_freeze).

InnoDB

View name Description
information_schema.INNODB_LOCK_WAITS This view displays information about lock transactions and lock objects that are waiting when lock conflicts occur.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_LOCKS This view displays information about all locks (waiting and held).

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.NDB_TRANSID_MYSQL_CONNECTION_MAP This view displays the mapping relationship between NDB transactions, NDB transaction coordinators, and MySQL servers that are attached as API nodes to an NDB cluster.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_TRX This view displays information about active transactions.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_BUFFER_PAGE This view displays information about all cached pages in the buffer pool.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_BUFFER_PAGE_LRU This view displays the LRU-sorted page information in the InnoDB buffer pool.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_BUFFER_POOL_STATS This view displays statistics about the InnoDB buffer pool.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_CMP This view displays the operation status information about compressed InnoDB tables.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_CMP_PER_INDEX This view displays the operation information about compressed InnoDB tables and indexes.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_CMP_PER_INDEX_RESET This view displays the operation reset time information about compressed InnoDB tables and indexes.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_CMP_RESET This view displays the operation status about compressed InnoDB tables.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_CMPMEM This view displays the status of compressed pages in the InnoDB buffer pool.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_CMPMEM_RESET This view displays the reset time of compressed pages in the InnoDB buffer pool.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_SYS_DATAFILES This view displays the data file paths of InnoDB files for each table and general tablespace.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_SYS_INDEXES This view displays the InnoDB index metadata.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_SYS_TABLES This view displays the InnoDB table metadata.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_SYS_TABLESPACES This view displays the metadata of InnoDB table files and general tablespaces.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_SYS_TABLESTATS This view displays the low-level status information about InnoDB tables.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_SYS_VIRTUAL This view displays the metadata of virtual generated columns in InnoDB.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_TEMP_TABLE_INFO This view displays information about active InnoDB temporary tables created by users.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_METRICS This view displays InnoDB performance information.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.PLUGINS This view displays information about server plugins.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_SYS_COLUMNS This view displays column information for each InnoDB table.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

MyISAM storage engine

View name Description
mysql.func This view displays information about user-defined functions (UDFs) created by using the CREATE FUNCTION UDF statement.

Note

This view is available starting with MySQL 5.7. However, this view does not support the related features. You can only query the table structure.

Outline

View name Description
oceanbase.DBA_OB_OUTLINES This view displays the execution plan outlines of the current tenant.
oceanbase.DBA_OB_CONCURRENT_LIMIT_SQL This view displays the outline information of the throttling rules of the current tenant.
oceanbase.DBA_OB_OUTLINE_CONCURRENT_HISTORY This view displays the execution plan outlines and throttling rule outlines of the current tenant.

OBKV

View name Description
oceanbase.CDB_OB_KV_TTL_TASKS This view displays the TTL tasks being executed by all tenants under the sys tenant.
oceanbase.CDB_OB_KV_TTL_TASK_HISTORY This view displays the historical TTL tasks of all tenants under the sys tenant.
oceanbase.DBA_OB_KV_TTL_TASKS This view displays the TTL tasks being executed by the current tenant.
oceanbase.DBA_OB_KV_TTL_TASK_HISTORY This view displays the historical TTL tasks of the current tenant.

Privilege

View name Description
mysql.procs_priv This view stores the privilege information of stored procedures.
mysql.role_edges This view displays the grant relationships between roles and users.
mysql.default_roles This view displays the roles enabled by default for users.

Session

View name Description
oceanbase.CDB_OB_DEADLOCK_EVENT_HISTORY This view displays the historical records of deadlock events. This view displays the historical records of all tenants under the root tenant.
oceanbase.DBA_OB_DEADLOCK_EVENT_HISTORY This view displays the historical records of deadlock events. This view displays the historical records of the current tenant under a non-root tenant.
oceanbase.DBA_OB_SERVER_EVENT_HISTORY This view displays the historical events of an OBServer node.

Index-related

View name Description
information_schema.INNODB_SYS_FIELDS This view displays metadata information about key columns (fields) of InnoDB indexes. This is equivalent to the information in the SYS_FIELDS table of the InnoDB data dictionary.

Note

This view is available starting with MySQL 5.7. You can query only the table structure.

information_schema.INNODB_FT_BEING_DELETED This view displays information about full-text indexes that are being deleted.

Note

This view is available starting with MySQL 5.7. You can query only the table structure.

information_schema.INNODB_FT_CONFIG This view displays configuration information about the InnoDB full-text search engine.

Note

This view is available starting with MySQL 5.7. You can query only the table structure.

information_schema.INNODB_FT_DELETED This view displays information about full-text indexes that have been marked for deletion.

Note

This view is available starting with MySQL 5.7. You can query only the table structure.

information_schema.INNODB_FT_INDEX_CACHE This view displays cache status information about InnoDB full-text indexes.

Note

This view is available starting with MySQL 5.7. You can query only the table structure.

Audit-related

View name Description
mysql.audit_log_filter This view displays the definitions of audit filters.
mysql.audit_log_user This view displays the mapping between audit filters and users.

Statistics and histograms

View name Description
oceanbase.DBA_TAB_STATISTICS This view displays the optimizer statistics of all tables in the database.
oceanbase.DBA_TAB_COL_STATISTICS This view displays the column statistics and histogram information of all tables in the database.
oceanbase.DBA_PART_COL_STATISTICS This view displays the column statistics and histogram information of all partitioned tables in the database.
oceanbase.DBA_SUBPART_COL_STATISTICS This view displays the column statistics and histogram information of all subpartitioned tables in the database.
oceanbase.DBA_TAB_HISTOGRAMS This view displays the histograms of all columns in the database.
oceanbase.DBA_PART_HISTOGRAMS This view displays the histogram data (endpoints of each histogram) of all partitioned tables in the database.
oceanbase.DBA_SUBPART_HISTOGRAMS This view displays the histogram data (endpoints of each histogram) of all subpartitioned tables in the database.
oceanbase.DBA_TAB_STATS_HISTORY This view displays the table statistics history of all tables in the database.
oceanbase.DBA_IND_STATISTICS This view displays the optimizer statistics of all indexes in the database.
oceanbase.DBA_TAB_MODIFICATIONS This view displays the cumulative modification information of tables in the database.
oceanbase.CDB_TAB_COL_STATISTICS This view displays the column-level statistics in the sys tenant.
information_schema.OPTIMIZER_TRACE This view displays the information generated by the optimizer trace activity.

Note

This view is only for MySQL 5.7 compatibility. The related features are not supported, and only the table structure can be queried.

oceanbase.DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY This view displays the historical execution of statistics collection.

WR-related views

View name Description
oceanbase.DBA_WR_SNAPSHOT This view displays the SNAPSHOT information of the current tenant.
oceanbase.CDB_WR_SNAPSHOT This view displays the SNAPSHOT information of all tenants.
oceanbase.DBA_WR_ACTIVE_SESSION_HISTORY This view displays the ASH data persisted for the current tenant.
oceanbase.CDB_WR_ACTIVE_SESSION_HISTORY This view displays the ASH data persisted for all tenants.
oceanbase.DBA_WR_STATNAME This view displays the names of the system statistics of the current tenant.
oceanbase.CDB_WR_STATNAME This view displays the names of the system statistics of all tenants.
oceanbase.DBA_WR_SYSSTAT This view displays the details of the system statistics of the current tenant.
oceanbase.CDB_WR_SYSSTAT This view displays the details of the system statistics of all tenants.
oceanbase.DBA_WR_CONTROL This view displays the WR-related configuration information.
oceanbase.CDB_WR_CONTROL This view displays the WR-related configuration information.
oceanbase.CDB_WR_SYSTEM_EVENT This view displays the tenant-level waiting event information persisted for all tenants.
oceanbase.DBA_WR_SYSTEM_EVENT This view displays the tenant-level waiting event information persisted for the current tenant.
oceanbase.CDB_WR_EVENT_NAME This view displays the tenant-level waiting event names persisted for all tenants.
oceanbase.DBA_WR_EVENT_NAME This view displays the tenant-level waiting event names persisted for the current tenant.
oceanbase.CDB_WR_SQLSTAT This view displays the basic performance statistics of the SQL statements executed for all tenants. Each SQL statement is a row (each unique value of SQL_ID + Plan_Hash is a row).
oceanbase.DBA_WR_SQLSTAT This view displays the basic performance statistics of the SQL statements executed for the current tenant. Each SQL statement is a row (each unique value of SQL_ID + Plan_Hash is a row).
oceanbase.CDB_WR_SYS_TIME_MODEL This view displays the WR data of the Time Model statistics for all tenants.
oceanbase.DBA_WR_SYS_TIME_MODEL This view displays the WR data of the Time Model statistics for the current tenant.
oceanbase.CDB_WR_SQLTEXT This view displays the SQL texts collected by WR for all tenants.
oceanbase.DBA_WR_SQLTEXT This view displays the SQL text collected by WR for the current tenant.

FOREIGN KEY

View name Description
information_schema.INNODB_SYS_FOREIGN This view displays metadata information about InnoDB foreign keys, equivalent to the information in the SYS_FOREIGN table of the InnoDB data dictionary.

Note

This view is available starting with MySQL 5.7.

information_schema.INNODB_SYS_FOREIGN_COLS This view displays status information about InnoDB foreign key columns, equivalent to the SYS_FOREIGN_COLS table in the InnoDB data dictionary.

Note

This view is only supported for compatibility with MySQL 5.7. It does not support any related functionality, and only allows querying the table structure.

System variables

View name Description
oceanbase.DBA_OB_SYS_VARIABLES This view displays the configuration of system variables for the current tenant.

Tenant-related

View name Description
oceanbase.DBA_OBJECTS This view displays all database objects, consistent with the ALL_OBJECTS view.
oceanbase.CDB_OBJECTS This view displays information about all user tenant objects under the system tenant.
oceanbase.DBA_OB_TENANTS Type
oceanbase.DBA_OB_TENANT_JOBS This view displays information about tenant-level tasks.
oceanbase.CDB_OB_SYS_VARIABLES This view displays the system variable information of all tenants in the system tenant.

Resource related

View Description
oceanbase.DBA_OB_RESOURCE_POOLS This view displays information about resource pools of all tenants.
oceanbase.DBA_OB_UNIT_JOBS This view displays all task information related to units.
oceanbase.DBA_OB_UNITS This view displays the information about all tenants' UNITs.
oceanbase.DBA_OB_UNIT_CONFIGS This view displays the unit specifications of all tenants.
oceanbase.DBA_OB_SEQUENCE_OBJECTS This view displays all SEQUENCE objects in the database.

SPM Related

SPM-related

SPM-related

View name Description
oceanbase.DBA_OB_SPM_EVO_RESULT This view displays the SPM plan evolution information for all tenants.

Overview of performance views

ASH-related statistics

View name Description
GV$OB_ACTIVE_SESSION_HISTORY This view displays the active session history.
V$OB_ACTIVE_SESSION_HISTORY This view displays the current active session history.

Cgroup-related

View name Description
GV$OB_CGROUP_CONFIG This view queries the cgroup configuration of an OBServer node.
V$OB_CGROUP_CONFIG This view queries the cgroup configuration of an OBServer node.

Cache-related statistics

View name Description
GV$OB_MEMORY This view displays the memory statistics at the tenant level.
V$OB_MEMORY This view displays the memory statistics at the tenant level.
GV$OB_MEMSTORE This view displays the memory usage of MemTables for all tenants on all servers.
V$OB_MEMSTORE This view displays the MemStore statistics at the tenant level.
GV$OB_MEMSTORE_INFO This view displays the details of MemTables for all partitions of all tenants on all servers.
V$OB_MEMSTORE_INFO This view displays the details of MemTables for all partitions of all tenants on all servers.
GV$OB_SSTABLES This view displays the SSTable information of a tenant.
V$OB_SSTABLES This view displays the SSTable information of a tenant.
GV$OB_TENANT_MEMORY This view displays the memory usage of each tenant in the cluster.
V$OB_TENANT_MEMORY This view displays the memory usage of each tenant in the current observer process.
GV$OB_PL_CACHE_OBJECT This view displays the basic information of PL-related cache objects for all tenants.
V$OB_PL_CACHE_OBJECT This view displays the basic information of PL-related cache objects for the current tenant.

I/O-related statistics

View name Description
GV$OB_IO_CALIBRATION_STATUS This view displays the execution status of an I/O calibration task.
V$OB_IO_CALIBRATION_STATUS This view displays the execution status of an I/O calibration task.
GV$OB_IO_BENCHMARK This view displays the disk calibration data used by the I/O module.
V$OB_IO_BENCHMARK This view displays the disk calibration data used by the I/O module.

Statistics of monitoring information

View Description
GV$OB_DTL_INTERM_RESULT_MONITOR This view displays the monitoring information of the DTL intermediate result manager.
V$OB_DTL_INTERM_RESULT_MONITOR This view displays the monitoring information of the DTL intermediate result manager.

Statistics of encrypted tables

View Description
V$OB_ENCRYPTED_TABLES This view displays the encryption status of tables that enable the encryption feature.
V$ENCRYPTED_TABLESPACES This view displays the encryption status of tablespaces that enable the encryption feature.

OBKV

Statistics related to encrypted tables

View name Description
V$OB_ENCRYPTED_TABLES This view displays the encryption status of tables with the encryption feature enabled.
V$ENCRYPTED_TABLESPACES This view displays the encryption status of tablespaces with the encryption feature enabled.

OBKV related

View name Description
GV$OB_KV_GROUP_COMMIT_STATUS This view displays the group commit status.
V$OB_KV_GROUP_COMMIT_STATUS This view displays the group commit status.

Statistics of log-related information

View name Description
GV$OB_LOG_STAT This view displays the Palf status.
V$OB_LOG_STAT This view displays the Palf status.

Event-related statistics

View Description
GV$OB_COMPACTION_PROGRESS This view displays the major compaction progress at the OBServer level for the current tenant.
GV$OB_COMPACTION_SUGGESTIONS This view displays the compaction suggestions.
GV$OB_PROCESSLIST This view displays the session information of all OBServer nodes in the current tenant.
GV$OB_COMPACTION_DIAGNOSE_INFO This view displays the compaction diagnostic information.
GV$OB_TABLET_COMPACTION_HISTORY This view displays the history of tablet-level compactions.
GV$OB_TABLET_COMPACTION_PROGRESS This view displays the progress of tablet-level compactions.
GV$OB_TRANSACTION_PARTICIPANTS This view displays the transaction participant information on all OBServer nodes.
GV$SESSION_EVENT This view displays the session-level waiting events on all OBServer nodes in the cluster.
GV$SESSION_WAIT This view displays some information about the current or previous waiting events of all sessions on all servers, including the waiting event name and waiting time.
GV$SESSION_WAIT_HISTORY This view displays the information about the last 10 waiting events of all sessions on all servers.
GV$SYSTEM_EVENT This view displays the waiting events at the tenant level in the cluster.
GV$SESSTAT This view displays the session-level statistics of all OBServer nodes.
GV$SYSSTAT This view displays the tenant-level statistics of all servers.
GV$ACTIVE_SESSION_HISTORY This view displays the history of active sessions.
V$ACTIVE_SESSION_HISTORY This view displays the history of active sessions.
V$OB_COMPACTION_PROGRESS This view displays the major compaction progress at the server level for the current tenant.
V$OB_COMPACTION_SUGGESTIONS This view displays the compaction suggestions.
V$OB_PROCESSLIST This view displays the session information of the current OBServer node.
V$OB_COMPACTION_DIAGNOSE_INFO This view displays the compaction diagnostic information.
V$OB_TABLET_COMPACTION_HISTORY This view displays the history of tablet-level compactions.
V$OB_TABLET_COMPACTION_PROGRESS This view displays the progress of tablet-level compactions.
V$OB_TRANSACTION_PARTICIPANTS This view displays the information about transaction participants on all OBServer nodes.
V$STATNAME This view displays the definitions of all statistics events.
V$EVENT_NAME This view displays the definitions of all statistics events on the current OBServer node.
V$SESSION_WAIT This view displays the details of the current wait events for each session. According to the convention, each wait event has three parameters, which record the corresponding values.
V$SESSION_WAIT_HISTORY This view displays the details of the current wait events for each session, including the most recent 10 wait events.
V$SESSTAT This view displays the statistics events at the session level.
V$SYSSTAT This view displays the statistics events at the tenant level on the current server.
V$SYSTEM_EVENT This view displays the statistics of wait events at the tenant level.
GV$SESSION_LONGOPS This view displays the execution status and progress of DDL operations in the cluster.
V$SESSION_LONGOPS This view displays the execution status and progress of DDL operations on the current OBServer node.

Statistics related to transactions

View Name Description
GV$LATCH This view displays the latch information for all OBServer nodes in the cluster.
V$LATCH This view displays the latch information for all OBServer nodes in the cluster.

SQL-related statistics

View name Description
GV$OB_PLAN_CACHE_STAT This view displays the overall status of each plan cache on all OBServer nodes for the current tenant.
V$OB_PLAN_CACHE_STAT This view records the overall status of each plan cache on all servers for the current tenant.
GV$OB_PLAN_CACHE_PLAN_STAT This view records the status of each cached object in the plan cache on all servers for the current tenant.
V$OB_PLAN_CACHE_PLAN_STAT This view records the status of each cached object in the plan cache on the current server for the current tenant.
GV$OB_PLAN_CACHE_PLAN_EXPLAIN This view displays the physical execution plans cached in the plan cache on all servers.
V$OB_PLAN_CACHE_PLAN_EXPLAIN This view displays the physical execution plans cached in the plan cache on the current server.
GV$OB_PS_STAT This view monitors the overall status of the PS cache, including the hit rate, memory usage, and number of cached items.
V$OB_PS_STAT This view monitors the overall status of the PS cache, including the hit rate, memory usage, and number of cached items.
GV$OB_PS_ITEM_INFO This view provides monitoring functionality for prepared statements, including basic information about all prepared statements in the PS cache.
V$OB_PS_ITEM_INFO This view provides monitoring functionality for prepared statements, including basic information about all prepared statements in the PS cache.
GV$OB_SESSION_PS_INFO This view displays the PS information opened by all sessions for the current tenant.
V$OB_SESSION_PS_INFO This view displays the PS information opened by all sessions for the current OBServer tenant.
GV$OB_PX_TARGET_MONITOR This view displays the usage of PX threads on all OBServer nodes.
V$OB_PX_TARGET_MONITOR This view displays the usage of PX threads on the OBServer node.
GV$OB_SQL_AUDIT This view displays the statistics of each SQL request on all servers, including the source and execution status.
V$OB_SQL_AUDIT This view displays the statistics of each SQL request on the current server, including the source and execution status.
GV$SQL_PLAN_MONITOR This view displays the plan-level statistics of slow queries on all OBServer nodes. Each slow query has a corresponding statistical record, and the trace information of the plan is also recorded.
V$SQL_PLAN_MONITOR This view displays the operation-level statistics of slow queries. Each operation has a corresponding statistical record.
V$SQL_MONITOR_STATNAME This view displays the meaning of the numeric values in the OTHERSTAT_X_ID column of the GV$SQL_PLAN_MONITOR view.
GV$OB_FLT_TRACE_CONFIG This view displays diagnostic information about full-link tracing.
GV$OB_SQLSTAT This view displays basic performance statistics of SQL statements in the cluster. Each SQL statement is represented by a row (i.e., each unique combination of SQL_ID and Plan_Hash corresponds to a row).
V$OB_SQLSTAT This view displays basic performance statistics of SQL statements on the current node. Each SQL statement is represented by a row (i.e., each unique combination of SQL_ID and Plan_Hash corresponds to a row).

Statistics related to databases

View name Description
GV$OB_KVCACHE This view displays the KVCACHE information on each OBServer node.
GV$OB_PARAMETERS This view displays the configuration information on all OBServer nodes where the tenant is located.
GV$OB_SERVER_SCHEMA_INFO This view displays the schema information on all servers.
GV$OB_SERVERS This view displays the information of all OBServer nodes.
GV$OB_UNITS This view displays the unit information on the OBServer node where the tenant is located. The system tenant can view the unit information on all OBServer nodes in the cluster.
V$OB_KVCACHE This view displays the KVCACHE information on each OBServer node.
V$OB_PARAMETERS This view displays the configuration information on the OBServer node.
V$OB_SERVER_SCHEMA_INFO This view displays the schema information on all servers.
V$OB_SERVERS This view displays the information of the OBServer node.
V$OB_UNITS This view displays the unit information on the OBServer node.
GV$DML_STATS This view displays the DML information in the current user table.
V$DML_STATS This view displays the DML information in the current user table.
GV$OB_KV_CONNECTIONS This view displays the statistics of the OBKV connections held by all servers.
V$OB_KV_CONNECTIONS This view displays the statistics of the OBKV connections held by the current server.
V$OB_COMPATIBILITY_CONTROL This view displays the features that can be controlled for compatibility with the behavior of OceanBase Database releases.

Statistics related to the Time Model

View Description
GV$OB_SESS_TIME_MODEL This view displays the Time Model statistics at the session level in the cluster.
V$OB_SESS_TIME_MODEL This view displays the Time Model statistics at the session level on the current node.
GV$OB_SYS_TIME_MODEL This view displays the Time Model statistics at the tenant level in the cluster.
V$OB_SYS_TIME_MODEL This view displays the Time Model statistics at the tenant level on the current node.

Network-related statistics

View name Description
GV$OB_RPC_OUTGOING This view displays the statistics of RPC packets sent from all OBServer nodes.
GV$OB_RPC_INCOMING This view displays the statistics of RPC packets received by all OBServer nodes.
V$OB_RPC_OUTGOING This view displays the statistics of RPC packets sent from different tenants on all OBServer nodes.
V$OB_RPC_INCOMING This view displays the statistics of RPC packets received by different tenants on all OBServer nodes.

Workarea-related statistics

View name Description
GV$SQL_WORKAREA This view displays the statistics of workareas for all operators that were executed by SQL automatic memory management.
GV$SQL_WORKAREA_ACTIVE This view displays the statistics of workareas for active operators.
GV$SQL_WORKAREA_HISTOGRAM This view displays the statistics of all workarea executions, such as the number of times full in-memory processing was performed between 1 MB and 2 MB and the number of one-pass operations.
GV$OB_SQL_WORKAREA_MEMORY_INFO This view queries some overall information about the SQL workarea, such as the maximum available memory, current used memory, and current held memory.
V$SQL_WORKAREA This view displays the statistics of workareas for all operators that were executed by SQL automatic memory management.
V$SQL_WORKAREA_ACTIVE This view displays the statistics of workareas for active operators.
V$SQL_WORKAREA_HISTOGRAM This view displays the statistics of all workarea executions, such as the number of times full in-memory processing was performed between 1 MB and 2 MB and the number of one-pass operations.
V$OB_SQL_WORKAREA_MEMORY_INFO This view queries some overall information about the SQL workarea, including the maximum available memory, current used memory, and current held memory.

Thread-related statistics

View name Description
GV$OB_PX_WORKER_STAT This view displays the execution information of each thread in parallel execution scenarios.
V$OB_PX_WORKER_STAT This view displays the execution information of each thread in parallel execution scenarios.
GV$OB_TENANT_RUNTIME_INFO This view displays the information about queues and thread limits in tenant threads.
V$OB_TENANT_RUNTIME_INFO This view displays the information about queues and thread limits in tenant threads.

Statistics related to major compactions

View name Description
GV$OB_MERGE_INFO This view displays statistics related to major compactions that are completed for the cluster.
V$OB_MERGE_INFO This view displays statistics related to major compactions that are completed for the cluster.

Statistics related to resource groups

View name Description
GV$OB_RES_MGR_SYSSTAT This view displays the statistics of the resource groups in all OBServer nodes of all tenants.
V$OB_RES_MGR_SYSSTAT This view displays the statistics of the resource groups in all OBServer nodes of all tenants.

Overview of views in a MySQL tenant

Dictionary views overview

Views and columns

View name Description
DBA_OB_TABLE_SPACE_USAGE This view displays the size of all user tables (based on the leader replica in a multi-replica environment) under the current tenant.
information_schema.COLUMNS This view records column information.
information_schema.STATISTICS This view records table index information.
information_schema.TABLES This view records table information.
information_schema.VIEWS This view records view information.
information_schema.VIEW_TABLE_USAGE This view displays the information of tables and views used in the view definition.
oceanbase.DBA_OB_TABLEGROUP_TABLES This view displays the association between TABLEGROUP and TABLE. It does not display tables not in a TABLEGROUP.
oceanbase.DBA_PART_KEY_COLUMNS This view displays the columns in the partitioning key of all partitioning objects in the database.
oceanbase.DBA_SUBPART_KEY_COLUMNS This view displays the columns in the subpartitioning key of all partitioning objects in the database.
oceanbase.DBA_OB_TABLE_LOCATIONS This view displays the location of a table or partition, including system tables, user tables, and index tables.
information_schema.TABLESPACES This view displays information about tablespaces.

Note

This view is available starting with MySQL 5.7. It only supports querying table structures.

Backup and restore

View Name Description
oceanbase.DBA_OB_BACKUP_JOBS This view displays backup jobs of the current tenant.
oceanbase.DBA_OB_BACKUP_JOB_HISTORY This view displays the history of backup jobs of the current tenant.
oceanbase.DBA_OB_BACKUP_TASKS This view displays the history of backup jobs of the current tenant.
oceanbase.DBA_OB_BACKUP_TASK_HISTORY This view displays the history of task-level backup jobs of the current tenant.
oceanbase.DBA_OB_BACKUP_SET_FILES This view displays the status of files in a backup set.
oceanbase.DBA_OB_RESTORE_PROGRESS This view displays the progress of ongoing restore tasks.
oceanbase.DBA_OB_RESTORE_HISTORY This view displays the history of completed restore tasks.
oceanbase.DBA_OB_ARCHIVE_DEST This view displays the archive path configuration.
oceanbase.DBA_OB_BACKUP_STORAGE_INFO This view displays information about the backup destination used for backup and restore in the current tenant.
oceanbase.DBA_OB_BACKUP_STORAGE_INFO_HISTORY This view displays the history of information about the backup destination used for backup and restore in the current tenant.
oceanbase.DBA_OB_BACKUP_DELETE_POLICY This view displays the deletion policy set for expired or automatic deletion in the current tenant.
oceanbase.DBA_OB_BACKUP_DELETE_JOBS This view displays the execution progress of tenant-level backup deletion jobs.
oceanbase.DBA_OB_BACKUP_DELETE_JOB_HISTORY This view displays the history of backup deletion jobs executed in the current tenant.
oceanbase.DBA_OB_BACKUP_DELETE_TASKS This view displays information about backup_set/backup_piece deletion tasks being executed in the current tenant.
oceanbase.DBA_OB_BACKUP_DELETE_TASK_HISTORY This view displays the history of backup_set/backup_piece deletion tasks completed in the current tenant.
oceanbase.DBA_OB_ARCHIVELOG This view displays the status of log backups on each path.
oceanbase.DBA_OB_ARCHIVELOG_SUMMARY This view displays the status of all log backups, including historical and current ones.
oceanbase.DBA_OB_ARCHIVELOG_PIECE_FILES This view displays the status of pieces in a backup set.
oceanbase.DBA_OB_RECOVER_TABLE_JOBS This view displays information about table-level restore tasks.
oceanbase.DBA_OB_IMPORT_TABLE_JOBS This view displays information about import tasks.
oceanbase.DBA_OB_IMPORT_TABLE_TASKS This view displays records of table-level import tasks.
oceanbase.DBA_OB_RECOVER_TABLE_JOB_HISTORY This view displays the results of table-level restore tasks.
oceanbase.DBA_OB_IMPORT_TABLE_JOB_HISTORY This view displays the results of import tasks.
oceanbase.DBA_OB_IMPORT_TABLE_TASK_HISTORY This view displays the history of cross-tenant table-level import tasks.

Storage-related

View name Description
mysql.proc This view displays information about stored procedures.
information_schema.ENGINES Displays information about storage engines.
information_schema.PARAMETERS This view provides information about stored procedure parameters and return values.
information_schema.ROUTINES This view provides information about stored procedures.

Dispatcher-related

View name Description
oceanbase.DBA_SCHEDULER_JOBS This view displays information about all database scheduler jobs.

Replica and log-related

View name Description
oceanbase.DBA_IND_SUBPARTITIONS This view displays information about all index subpartitions in the database.
oceanbase.DBA_OB_TABLEGROUP_PARTITIONS This view displays the primary partitions of the partitioned table group.
oceanbase.DBA_OB_TABLEGROUP_SUBPARTITIONS This view displays the secondary partitions of the partitioned table group.
oceanbase.DBA_OB_TABLEGROUPS This view displays the metadata of the table group, mainly the partition information of the table group.
oceanbase.DBA_OB_TABLET_REPLICAS This view displays all tablet replicas of the current tenant. Each tablet replica is uniquely determined by the joint key: <TABLET_ID, SVR_IP, SVR_PORT, LS_ID>.
oceanbase.DBA_OB_TABLET_TO_LS This view displays the list of all tablets in the current tenant and the log stream information to which each tablet belongs.
oceanbase.DBA_OB_OBJECT_BALANCE_WEIGHT This view displays the partitions that are set with a special weight.
oceanbase.DBA_OB_TRANSFER_PARTITION_TASKS This view displays the running Transfer Partition tasks in the current tenant.
oceanbase.DBA_OB_TRANSFER_PARTITION_TASK_HISTORY This view displays the history of transfer partition tasks that have been executed for the current tenant.

Replica and log-related

View Name Description
oceanbase.DBA_IND_SUBPARTITIONS This view displays information about all index subpartitions in the database.
oceanbase.DBA_OB_TABLEGROUP_PARTITIONS This view displays the primary partition information of a table group.
oceanbase.DBA_OB_TABLEGROUP_SUBPARTITIONS This view displays the secondary partition information of a table group.
oceanbase.DBA_OB_TABLEGROUPS This view displays the metadata of a table group, mainly the partition information.
oceanbase.DBA_OB_TABLET_REPLICAS This view displays all tablet replicas in the current tenant. Each tablet replica is uniquely determined by the joint key: <TABLET_ID, SVR_IP, SVR_PORT, LS_ID>.
oceanbase.DBA_OB_TABLET_TO_LS This view displays all tablet lists in the current tenant and the log stream information of each tablet.
oceanbase.DBA_OB_LS_LOCATIONS This view displays the distribution information of log streams (LS) replicas in the current tenant.
DBA_OB_LS_REPLICA_TASK_HISTORY This view displays the execution history of disaster recovery tasks.

Help command-related

View Name Description
mysql.help_topic This view, together with the mysql.help_category, mysql.help_relation, and mysql.help_keyword tables, generates the Help command.
mysql.help_category This view, together with the mysql.help_relation, mysql.help_topic, and mysql.help_keyword tables, generates the Help command.
mysql.help_keyword This view, together with the mysql.help_relation, mysql.help_topic, and mysql.help_category tables, generates the Help command.
mysql.help_relation This view, together with the mysql.help_category, mysql.help_topic, and mysql.help_keyword tables, generates the Help command.

InnoDB

View name Description
information_schema.INNODB_LOCK_WAITS This view displays information about the locks that are waiting for conflicts.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_LOCKS This view displays information about all current locks (waiting and held).

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.NDB_TRANSID_MYSQL_CONNECTION_MAP This view displays the mapping between NDB transactions, NDB transaction coordinators, and MySQL servers attached as API nodes to the NDB cluster.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_TRX This view displays information about the active transactions.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_BUFFER_PAGE This view displays information about all cached pages in the buffer pool.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_BUFFER_PAGE_LRU This view displays the LRU-ordered pages in the InnoDB buffer pool.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_BUFFER_POOL_STATS This view displays the statistics of the InnoDB buffer pool.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_CMP This view displays the operation status of the compressed InnoDB tables.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_CMP_PER_INDEX This view displays the operation information of the compressed InnoDB tables and indexes.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_CMP_PER_INDEX_RESET This view displays the operation reset time of the compressed InnoDB tables and indexes.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_CMP_RESET This view displays the operation status of the compressed InnoDB tables.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_CMPMEM This view displays the status of the compressed pages in the InnoDB buffer pool.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_CMPMEM_RESET This view displays the status of the compressed pages in the InnoDB buffer pool after they are reset.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_SYS_DATAFILES This view displays the data file paths of the InnoDB files for each table and general tablespace.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_SYS_INDEXES This view displays the metadata of the InnoDB indexes.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_SYS_TABLES This view displays the metadata of the InnoDB tables.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_SYS_TABLESPACES This view displays the metadata of the InnoDB table files and general tablespaces.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_SYS_TABLESTATS This view displays the low-level status information of the InnoDB tables.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_SYS_VIRTUAL This view displays the metadata of the InnoDB virtual generated columns.

Note

This view is available starting with MySQL 5.7. The related features are not supported and only the table structure can be queried.

information_schema.INNODB_TEMP_TABLE_INFO This view displays information about InnoDB temporary tables created by users.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_METRICS This view displays InnoDB performance information.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.PLUGINS This view displays information about server plugins.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

information_schema.INNODB_SYS_COLUMNS This view displays column information for each InnoDB table.

Note

This view is available starting with MySQL 5.7. The related features are not supported, and you can only query the table structure.

MyISAM storage engine-related

View name Description
mysql.func This view shows information about user-defined functions (UDFs) created by using the CREATE FUNCTION UDF statement.

Note

This view is available only for MySQL 5.7 compatibility. Its underlying features are not supported, and the view can only be queried for schema information.

OBKV related

View Description
oceanbase.DBA_OB_KV_TTL_TASKS Displays the TTL tasks that are being executed in the current tenant.
oceanbase.DBA_OB_KV_TTL_TASK_HISTORY This view displays the historical TTL tasks of the current tenant.

Outline-related

View Description
oceanbase.DBA_OB_OUTLINES This view displays the execution plan outline information of the current tenant.
oceanbase.DBA_OB_CONCURRENT_LIMIT_SQL This view displays the Outline related information of the throttling rules of the current tenant.
oceanbase.DBA_OB_OUTLINE_CONCURRENT_HISTORY This view displays the outline history information about execution plans and throttling rules of the current tenant.

Privilege-related

View name Description
mysql.db This view shows database-level permissions information (VIRTUAL_TABLE).
mysql.user This view is available starting with 1.0.
information_schema.COLUMN_PRIVILEGES This view displays column privileges.
information_schema.SCHEMA_PRIVILEGES Description
information_schema.TABLE_PRIVILEGES This view records table privileges.
information_schema.USER_PRIVILEGES Displays user privileges.
mysql.procs_priv This view stores the permission information of stored procedures.
mysql.role_edges This view displays the grant relationships of roles and users.
mysql.default_roles This view displays the default roles enabled for users.

SPM-related

View Description
oceanbase.DBA_SQL_PLAN_BASELINES This view displays SQL plans in the SPM.
oceanbase.DBA_SQL_MANAGEMENT_CONFIG This view displays the parameters in SPM.
oceanbase.DBA_OB_SPM_EVO_RESULT This view displays the SPM evolution results of the current tenant.

Time zone related

View Description
mysql.time_zone This view displays time zone information (SYSTEM_VIEW).
mysql.time_zone_name Records the timezone name (SYSTEM_VIEW).
mysql.time_zone_transition mysql.time_zone_transition is a system view that records time zone transition information.
mysql.time_zone_transition_type Type

Database basic information

View name Description
information_schema.GLOBAL_STATUS The information_schema.GLOBAL_STATUS view records the global status of OceanBase Database.
information_schema.GLOBAL_VARIABLES This view records information about global variables.
information_schema.SCHEMATA This view records the database meta information.
oceanbase.DBA_OB_DATABASES This view displays the database information of a tenant.
oceanbase.DBA_OB_MAJOR_COMPACTION This view displays the global compaction information of the current tenant.
oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION This view displays the major compaction information of each zone of the current tenant.
oceanbase.DBA_OB_FREEZE_INFO This view displays the version information of the major_freeze process.

Session Related

View name Description
information_schema.SESSION_STATUS This view records session status information, such as the number of active connections and the database uptime.
information_schema.SESSION_VARIABLES Records session variables.
oceanbase.DBA_OB_DEADLOCK_EVENT_HISTORY This view displays the history of deadlock events. The view displays the history records of the current tenant in non-root tenants.

Index-related views

View name Description
information_schema.INNODB_SYS_FIELDS This view displays metadata about key columns (fields) of InnoDB indexes, which is equivalent to the information in the SYS_FIELDS table of the InnoDB data dictionary.

Note

This view is available starting with MySQL 5.7. You can query only the table structure.

information_schema.INNODB_FT_BEING_DELETED This view displays information about full-text indexes being deleted.

Note

This view is available starting with MySQL 5.7. You can query only the table structure.

information_schema.INNODB_FT_CONFIG This view displays configuration information about the InnoDB full-text search engine.

Note

This view is available starting with MySQL 5.7. You can query only the table structure.

information_schema.INNODB_FT_DELETED This view displays information about full-text indexes marked for deletion.

Note

This view is available starting with MySQL 5.7. You can query only the table structure.

information_schema.INNODB_FT_INDEX_CACHE This view displays cache status information about InnoDB full-text indexes.

Note

This view is available starting with MySQL 5.7. You can query only the table structure.

Audit-related views

View name Description
mysql.audit_log_filter This view displays the definitions of audit filters.
mysql.audit_log_user This view displays the mapping between audit filters and users.

SQLSTAT-related views

View name Description
oceanbase.DBA_WR_SQLSTAT This view displays basic performance statistics of SQL statements executed in the current tenant. Each SQL statement is represented as a row (i.e., each unique combination of SQL_ID and Plan_Hash is a row).

Time Model-related views

View name Description
oceanbase.DBA_WR_SYS_TIME_MODEL This view displays WR data of Time Model statistics items in the current tenant.

Statistics and Histograms

View name Description
oceanbase.DBA_WR_SYS_TIME_MODEL This view displays the WR data of the Time Model statistics for the current tenant.

Statistics and histograms

View name Description
oceanbase.DBA_WR_SYS_TIME_MODEL Displays the WR data of the time model statistics in the current tenant.

Statistics and histograms

View name Description
oceanbase.DBA_TAB_STATISTICS This view displays the optimizer statistics of all tables in the database.
oceanbase.DBA_TAB_COL_STATISTICS This view displays column statistics and histogram information for all tables in the database.
oceanbase.DBA_PART_COL_STATISTICS This view displays the column statistics and histogram information of all partitioned tables in the current database.
oceanbase.DBA_SUBPART_COL_STATISTICS This view displays the column statistics and histogram information for all subpartitioned tables in the database.
oceanbase.DBA_TAB_HISTOGRAMS This view displays histograms of all columns in all tables in the database.
oceanbase.DBA_PART_HISTOGRAMS This view displays histogram data on all partitioned tables in the database (the endpoints of each histogram).
oceanbase.DBA_SUBPART_HISTOGRAMS This view displays histogram data (endpoints) for all subpartitioned tables in the database.
oceanbase.DBA_TAB_STATS_HISTORY This view displays the table statistics for all tables in the database.
oceanbase.DBA_IND_STATISTICS This view displays the optimizer statistics of all indexes in the database.
oceanbase.DBA_TAB_MODIFICATIONS This view displays the cumulative modification information about all tables in the database.
information_schema.QUERY_RESPONSE_TIME Type
information_schema.OPTIMIZER_TRACE This view displays information generated by the optimizer trace.

Note

This view is provided for MySQL 5.7 compatibility. The related features are not supported, and the view structure can be queried.

oceanbase.DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY This view queries the execution history of a statistics collection task.

WR-related

View name Description
oceanbase.DBA_WR_SNAPSHOT This view displays the SNAPSHOT information of the current tenant.
oceanbase.DBA_WR_ACTIVE_SESSION_HISTORY This view displays the ASH data of the current tenant.
oceanbase.DBA_WR_STATNAME This view displays the names of the system statistics of the current tenant.
oceanbase.DBA_WR_SYSSTAT This view displays the details of the system statistics of the current tenant.
oceanbase.DBA_WR_CONTROL This view displays the WR-related configuration information.
oceanbase.DBA_WR_SYSTEM_EVENT This view displays the tenant-level waiting event information of the current tenant.
oceanbase.DBA_WR_EVENT_NAME This view displays the tenant-level waiting event names of the current tenant.
oceanbase.DBA_WR_SQLTEXT This view displays the SQL texts collected by WR of the current tenant.

Foreign key-related

View name Description
information_schema.INNODB_SYS_FOREIGN This view displays the metadata information of InnoDB foreign keys, which is equivalent to the information in the SYS_FOREIGN table of the InnoDB data dictionary.

Note

This view is only for compatibility with MySQL 5.7. The related features are not supported, and only the table structure can be queried.

information_schema.INNODB_SYS_FOREIGN_COLS This view displays the status information of InnoDB foreign key columns, which is equivalent to the information in the SYS_FOREIGN_COLS table of the InnoDB data dictionary.

Note

This view is only for compatibility with MySQL 5.7. The related features are not supported, and only the table structure can be queried.

Thread-related

View name Description
information_schema.PROCESSLIST This view displays the information of running threads.

System variable-related

View name Description
oceanbase.DBA_OB_SYS_VARIABLES This view displays the configuration of system variables of the current tenant.

User login-related

View name Description
information_schema.CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS This view displays the number of failed login attempts for different users.

Tenant related

| information_schema.CHARACTER_SETS | This view records the character sets of OceanBase Database. | | information_schema.COLLATIONS | This view records comparison method information for each character set. | | information_schema.COLLATION_CHARACTER_SET_APPLICABILITY | This view records the correspondence between a character and a collation. |

Resources

View Description
oceanbase.DBA_OB_SEQUENCE_OBJECTS This view displays all sequences in the database.

Overview of performance views

ASH-related statistics

View name Description
GV$OB_ACTIVE_SESSION_HISTORY This view displays the active session history.
V$OB_ACTIVE_SESSION_HISTORY This view displays the active session history.

Cgroup-related

View name Description
GV$OB_CGROUP_CONFIG This view displays the cgroup configuration of an OBServer node.
V$OB_CGROUP_CONFIG This view displays the cgroup configuration of an OBServer node.

Event-related statistics

View Description
GV$OB_COMPACTION_PROGRESS This view displays the major compaction progress of all OBServer nodes in the tenant.
GV$OB_COMPACTION_SUGGESTIONS This view displays the compaction suggestions.
GV$OB_PROCESSLIST This view displays the session information of all OBServer nodes in the tenant.
GV$OB_COMPACTION_DIAGNOSE_INFO This view displays the compaction diagnostic information.
GV$OB_TABLET_COMPACTION_HISTORY This view displays the historical information of tablet-level major compactions.
GV$OB_TABLET_COMPACTION_PROGRESS This view displays the progress of tablet-level major compactions.
GV$OB_TRANSACTION_PARTICIPANTS This view displays the transaction participant information of all OBServer nodes.
GV$SESSION_EVENT This view displays the session-level waiting events of all OBServer nodes in the cluster.
GV$SESSION_WAIT This view displays the information about the current or last waiting events of all sessions on all servers, including the waiting event name and waiting time.
GV$SESSION_WAIT_HISTORY This view displays the information about the 10 most recent waiting events of all sessions on all servers.
GV$SYSTEM_EVENT This view displays the waiting events at the tenant level in the cluster.
GV$SESSTAT This view displays the session-level statistics of all OBServer nodes.
GV$SYSSTAT This view displays the tenant-level statistics of all servers.
GV$ACTIVE_SESSION_HISTORY This view displays the history of active sessions.
V$ACTIVE_SESSION_HISTORY This view displays the history of active sessions.
V$OB_COMPACTION_PROGRESS This view displays the major compaction progress of the server.
V$OB_COMPACTION_SUGGESTIONS This view displays the compaction suggestions.
V$OB_PROCESSLIST This view displays the session information of the current OBServer node.
V$OB_COMPACTION_DIAGNOSE_INFO This view displays the compaction diagnostic information.
V$OB_TABLET_COMPACTION_HISTORY This view displays the history of tablet-level major compactions.
V$OB_TABLET_COMPACTION_PROGRESS This view displays the progress of tablet-level major compactions.
V$OB_TRANSACTION_PARTICIPANTS This view displays the transaction participants on all OBServer nodes.
V$STATNAME This view displays the definitions of all statistics events.
V$EVENT_NAME This view displays the definitions of all statistics events on the current OBServer node.
V$SESSION_WAIT This view displays the details of the current wait events for each session. Each wait event has three parameters, which will be recorded with corresponding values.
V$SESSION_WAIT_HISTORY This view displays the details of the current wait events for each session, including the last 10 wait events.
V$SESSTAT This view displays the statistics events at the session level.
V$SYSSTAT This view displays the statistics events at the tenant level on the current server.
V$SYSTEM_EVENT This view displays the statistics events at the tenant level.
GV$SESSION_LONGOPS This view displays the execution status and progress of DDL operations in the cluster.
V$SESSION_LONGOPS This view displays the execution status and progress of DDL operations on the current OBServer node.

Statistics related to monitoring

View Name Description
GV$OB_DTL_INTERM_RESULT_MONITOR This view displays the monitoring information of the DTL intermediate result manager.
V$OB_DTL_INTERM_RESULT_MONITOR This view displays the monitoring information of the DTL intermediate result manager.

Statistics related to caching

View Name Description
GV$OB_MEMORY This view displays the memory statistics at the tenant level.
V$OB_MEMORY This view displays the memory statistics at the tenant level.
GV$OB_MEMSTORE This view displays the memory usage of MemTables for all tenants on all servers.
V$OB_MEMSTORE This view displays the MemStore statistics at the tenant level.
GV$OB_MEMSTORE_INFO This view displays the details of MemTables for all partitions of all tenants on all servers.
V$OB_MEMSTORE_INFO This view displays the details of MemTables for all partitions of all tenants on all servers.
GV$OB_SSTABLES This view displays the SSTable information for a tenant.
V$OB_SSTABLES This view displays the SSTable information for a tenant.
GV$OB_TENANT_MEMORY This view displays the memory usage of each tenant in the cluster.
V$OB_TENANT_MEMORY This view displays the memory usage of each tenant in the current observer process.
GV$OB_PL_CACHE_OBJECT This view displays the basic information of PL-related cache objects for all tenants.
V$OB_PL_CACHE_OBJECT This view displays the basic information of PL-related cache objects for the current tenant.

OBKV

View Name Description
GV$OB_KV_GROUP_COMMIT_STATUS This view queries the status information of the current group commit.
V$OB_KV_GROUP_COMMIT_STATUS This view queries the status information of the current group commit.

SQL-related statistics

View Name Description
GV$OB_PLAN_CACHE_STAT This view displays the overall status of each plan cache for the current tenant on all OBServer nodes.
V$OB_PLAN_CACHE_STAT This view records the overall status of each plan cache for the current tenant on all servers.
GV$OB_PLAN_CACHE_PLAN_STAT This view records the status of each cached object in the plan cache for the current tenant on all servers.
V$OB_PLAN_CACHE_PLAN_STAT This view records the status of each cached object in the plan cache for the current tenant on the current server.
GV$OB_PLAN_CACHE_PLAN_EXPLAIN This view displays the physical execution plans cached in the plan cache of all servers.
V$OB_PLAN_CACHE_PLAN_EXPLAIN This view displays the physical execution plans cached in the plan cache of the current server.
GV$OB_PS_STAT This view monitors the overall status of the PS cache, including hit rate, memory usage, and the number of cached items.
V$OB_PS_STAT This view monitors the overall status of the PS cache, including hit rate, memory usage, and the number of cached items.
GV$OB_PS_ITEM_INFO This view provides monitoring capabilities for prepared statements, including basic information about all prepared statements in the PS cache.
V$OB_PS_ITEM_INFO This view provides monitoring capabilities for prepared statements, including basic information about all prepared statements in the PS cache.
GV$OB_SESSION_PS_INFO This view displays the PS information opened by all sessions for the current tenant.
V$OB_SESSION_PS_INFO This view displays the PS information opened by all sessions for the current OBServer tenant.
GV$OB_PX_TARGET_MONITOR This view displays the PX thread usage on all OBServer nodes.
V$OB_PX_TARGET_MONITOR This view displays the PX thread usage on the OBServer node.
GV$OB_SQL_AUDIT This view displays the statistics of each SQL request on all servers, including the source and execution status.
V$OB_SQL_AUDIT This view displays the statistics of each SQL request on the current server, including the source and execution status.
GV$SQL_PLAN_MONITOR This view displays the plan-level statistics of slow queries on all OBServer nodes. Each slow query has a corresponding statistic, and the trace information of the plan is also recorded.
V$SQL_PLAN_MONITOR This view displays the operation-level statistics of slow queries. Each operation has a corresponding statistic.
V$SQL_MONITOR_STATNAME This view displays the meaning of the numeric values in the OTHERSTAT_X_ID column of the GV$SQL_PLAN_MONITOR view.
GV$OB_FLT_TRACE_CONFIG This view displays the diagnostic information of full-link tracing.

Log statistics

View Name Description
GV$OB_LOG_STAT This view displays the status of Palf.
V$OB_LOG_STAT This view displays the status of Palf.

Network statistics

View Name Description
GV$OB_RPC_OUTGOING This view displays the statistics of RPC packets sent by all OBServer nodes.
GV$OB_RPC_INCOMING This view displays the statistics of RPC packets received by all OBServer nodes.
V$OB_RPC_OUTGOING This view displays the statistics of RPC packets sent by different tenants on OBServer nodes.
V$OB_RPC_INCOMING This view displays the statistics of RPC packets received by different tenants on OBServer nodes.

Database-related statistics

View name Description
GV$OB_KVCACHE This view displays KVCACHE information on all OBServer nodes.
GV$OB_PARAMETERS This view displays the configuration information on all OBServer nodes where the tenant resides.
GV$OB_SERVER_SCHEMA_INFO This view displays the schema information on all servers.
GV$OB_UNITS This view displays the unit information on the OBServer node where the tenant resides. The system tenant can view the unit information on all OBServer nodes in the cluster.
V$OB_KVCACHE This view displays KVCACHE information on all OBServer nodes.
V$OB_PARAMETERS This view displays the configuration information on the OBServer node where the tenant resides.
V$OB_SERVER_SCHEMA_INFO This view displays the schema information on all servers.
V$OB_UNITS This view displays the unit information on the OBServer node where the tenant resides.
GV$DML_STATS This view displays the DML information in the current user table.
V$DML_STATS This view displays the DML information in the current user table.
GV$OB_KV_CONNECTIONS This view displays the statistics of the OBKV connections held by all servers.
V$OB_KV_CONNECTIONS This view displays the statistics of the OBKV connections held by the current server.
V$OB_COMPATIBILITY_CONTROL This view displays the features that can be controlled for compatibility with the OceanBase Database release version.

SQLSTAT-related statistics

View name Description
GV$OB_SQLSTAT This view displays the basic performance statistics of SQL statements in the cluster. Each SQL statement is displayed as a row (each unique value of SQL_ID + Plan_Hash is a row).
V$OB_SQLSTAT This view displays the basic performance statistics of SQL statements on the current node. Each SQL statement is displayed as a row (each unique value of SQL_ID + Plan_Hash is a row).

Time Model-related statistics

View name Description
GV$OB_SESS_TIME_MODEL This view displays the Time Model statistics at the session level in the cluster.
V$OB_SESS_TIME_MODEL This view displays the Time Model statistics at the session level on the current node.
GV$OB_SYS_TIME_MODEL This view displays the Time Model statistics at the tenant level in the cluster.
V$OB_SYS_TIME_MODEL This view displays the Time Model statistics at the tenant level on the current node.

Statistics related to dumps

View name Description
GV$OB_MERGE_INFO This view displays the statistics related to completed major compactions in the OceanBase cluster.
V$OB_MERGE_INFO This view displays the statistics related to completed major compactions in the OceanBase cluster.

Statistics related to threads

View name Description
GV$OB_PX_WORKER_STAT In parallel execution scenarios, this view displays the execution information of each thread.
V$OB_PX_WORKER_STAT In parallel execution scenarios, this view displays the execution information of each thread.

Workarea-related statistics

View name Description
GV$SQL_WORKAREA This view displays the workarea statistics of all operators executed under SQL automatic memory management.
GV$SQL_WORKAREA_ACTIVE This view displays the workarea information of the currently active operators.
GV$SQL_WORKAREA_HISTOGRAM This view displays the statistics of all workarea executions, such as the number of times full in-memory processing occurred in the range of 1M to 2M and the number of one-pass operations.
GV$OB_SQL_WORKAREA_MEMORY_INFO This view displays some overall information about the SQL workarea, such as the maximum available memory, current used memory, and current held memory.
V$SQL_WORKAREA This view displays the workarea statistics of all operators executed under SQL automatic memory management.
V$SQL_WORKAREA_ACTIVE This view displays the workarea information of the currently active operators.
V$SQL_WORKAREA_HISTOGRAM This view displays the statistics of all workarea executions, such as the number of times full in-memory processing occurred in the range of 1M to 2M and the number of one-pass operations.
V$OB_SQL_WORKAREA_MEMORY_INFO This view displays some overall information about the SQL workarea, including the maximum available memory, current used memory, and current held memory.

Statistics related to encrypted tables

View name Description
V$OB_ENCRYPTED_TABLES This view displays the encryption status of tables with encryption enabled.
V$ENCRYPTED_TABLESPACES This view displays the encryption status of tablespaces with encryption enabled.

Transaction-related statistics

View name Description
GV$LATCH This view displays the latch information of all OBServer nodes in the cluster.
V$LATCH This view displays the latch information of all OBServer nodes in the cluster.

Statistics of resource groups

View name Description
GV$OB_RES_MGR_SYSSTAT This view displays the statistics of resource groups in all OBServer nodes of the current tenant.
V$OB_RES_MGR_SYSSTAT This view displays the statistics of resource groups in all tenants on the current OBServer node.

Overview of views in an Oracle tenant

Dictionary views overview

Applicability

This topic applies only to OceanBase Database Enterprise Edition. OceanBase Database Community Edition provides only MySQL mode.

Views and tables

View name Description
DBA_OB_TABLE_SPACE_USAGE This view displays the sizes of all user tables (based on the leader replica in a multi-replica environment) in the current tenant.
ALL_ALL_TABLES This view displays the object tables and relational tables accessible to the user.
ALL_COL_COMMENTS This view displays the column comments of all views and tables accessible to the user.
ALL_TABLES This view displays all tables accessible to the user.
ALL_TAB_COLS This view displays all columns of the tables, views, and clusters accessible to the current user.
ALL_TAB_COLUMNS This view displays all columns of the tables, views, and clusters accessible to the current user.
ALL_TAB_COMMENTS This view displays the comments of the tables and views accessible to the current user.
DBA_COL_COMMENTS This view displays the column comments of all views and tables in the database.
DBA_TAB_COMMENTS This view displays the comments of all tables and views in the database.
USER_COL_COMMENTS This view displays the column comments of all views and tables owned by the current user.
USER_TAB_COMMENTS This view displays the comments of the tables and views owned by the current user.
DBA_OB_TABLEGROUP_TABLES This view displays the association between TABLEGROUP and TABLE. It does not display tables not in a TABLEGROUP.
DBA_TABLES This view displays all tables in the database.
DBA_ALL_TABLES This view displays the object tables and relational tables in the database. Its fields are the same as those of ALL_ALL_TABLES.
DBA_TABLESPACES This view displays all tablespaces in the database.
DBA_TAB_COLS This view displays all columns of the tables, views, and clusters in the database.
DBA_TAB_COLUMNS This view displays all columns of the tables, views, and clusters in the database.
USER_ALL_TABLES This view displays the object tables and relational tables accessible to the current user. Except for the OWNER field, its fields are the same as those of ALL_ALL_TABLES.
USER_TABLES This view displays all tables owned by the current user.
USER_TABLESPACES This view displays the tablespaces accessible to the current user. Its columns are the same as those of DBA_TABLESPACES, except for the PLUGGED_IN field.
USER_TAB_COLS This view displays all columns of the tables, views, and clusters owned by the current user.
USER_TAB_COLUMNS This view displays all columns of tables, views, and clusters owned by the current user.
ALL_VIEWS This view displays all views accessible to the current user.
DBA_VIEWS This view displays all views in the database. The columns are the same as those in the ALL_VIEWS view.
USER_VIEWS This view displays views owned by the current user.
DICTIONARY Description
DICT Description
DBA_OB_TABLE_LOCATIONS This view displays the locations of tables and partitions. Table and partition locations include system tables, user tables, and index tables, and so on.

Outline

View Description
DBA_OB_OUTLINES This view displays the outline information for all plans in the current tenant.
DBA_OB_CONCURRENT_LIMIT_SQL This view displays the outline information related to the throttling rules in the current tenant.
DBA_OB_OUTLINE_CONCURRENT_HISTORY This view displays the history of execution plans and throttle rules of an outline for the current tenant.

SPM related

View Description
DBA_SQL_PLAN_BASELINES This view displays the plan baselines for SQL in the SPM.
DBA_SQL_MANAGEMENT_CONFIG This view displays the parameters for SQL Plan Management.
ALL_PLSQL_TYPE_ATTRS Type

Basic database information

View name Description
DBA_CONTEXT This view displays information about all namespaces of the database.
DBA_OB_DATABASES This view displays the database metadata of the tenant.
DBA_OB_MAJOR_COMPACTION This view displays major compaction information of all major compaction tasks.
DBA_OB_ZONE_MAJOR_COMPACTION This view displays the major compaction information for all zones of the current tenant.
ALL_OBJECTS This view displays all database objects accessible to the current user.
DBA_OBJECTS This view displays all database objects in the database.
USER_OBJECTS This view displays all database objects of the current user.
ALL_DEPENDENCIES This view displays the dependencies of objects in the database.
DBA_DEPENDENCIES This view displays all the dependencies between objects in a database.
USER_DEPENDENCIES This view displays dependency relationships between objects in the current user schema.
DBA_OB_FREEZE_INFO This view displays the version information generated during a major freeze operation.
DBA_OB_SOURCE This view displays the source code information of all storage objects in the current tenant.
USER_OB_SOURCE This view displays source code information of storage objects owned by the current user.
ALL_OB_SOURCE This view displays source code information of the storage objects accessible to the current user.

Functions and procedures

View name Description
ALL_ARGUMENTS This view displays the parameters of functions and procedures accessible to the current user.
ALL_PROCEDURES This view displays all functions and procedures accessible to the current user and their related attributes.
ALL_SOURCE This view displays the text source of stored objects accessible to the current user.
DBA_ARGUMENTS This view displays the parameters of functions and procedures available in the database. The columns are the same as those in ALL_ARGUMENTS.
DBA_PROCEDURES This view displays all functions and procedures available in the database and their related attributes. The columns are the same as those in ALL_PROCEDURES.
DBA_SOURCE This view displays the text source of all stored objects in the database. The columns are the same as those in ALL_SOURCE.
USER_ARGUMENTS This view displays the parameters of functions and procedures owned by the current user. The columns are the same as those in ALL_ARGUMENTS, but without the OWNER column.
USER_PROCEDURES This view displays all functions and procedures owned by the current user and their related attributes. The columns are the same as those in ALL_PROCEDURES, but without the OWNER column.
USER_SOURCE This view displays the text source of stored objects owned by the current user. The columns are the same as those in ALL_SOURCE, but without the OWNER column.
DBA_JOBS This view displays an overview of submitted tasks.
USER_JOBS This view displays an overview of submitted tasks.
DBA_JOBS_RUNNING This view displays running tasks.

Backup and restore

View name Description
DBA_OB_BACKUP_JOBS This view displays the backup jobs of the current tenant.
DBA_OB_BACKUP_JOB_HISTORY This view displays the history of the backup jobs of the current tenant.
DBA_OB_BACKUP_TASKS This view displays the task-level backup jobs of the current tenant.
DBA_OB_BACKUP_TASK_HISTORY This view displays the history of the task-level backup jobs of the current tenant.
DBA_OB_BACKUP_SET_FILES This view displays the status of the files in a backup set.
DBA_OB_RESTORE_PROGRESS This view displays the progress of the ongoing restore tasks.
DBA_OB_RESTORE_HISTORY This view displays the history of the completed restore tasks.
DBA_OB_ARCHIVE_DEST This view displays the archive destination configuration.
DBA_OB_BACKUP_STORAGE_INFO This view displays the information about the backup destination used for backup and restore in the current tenant.
DBA_OB_BACKUP_STORAGE_INFO_HISTORY This view displays the history of the backup destination used for backup and restore in the current tenant.
DBA_OB_BACKUP_DELETE_POLICY This view displays the deletion policy set for expired or automatic deletion in the current tenant.
DBA_OB_BACKUP_DELETE_JOBS This view displays the execution progress of the tenant-level backup deletion jobs.
DBA_OB_BACKUP_DELETE_JOB_HISTORY This view displays the history of the backup deletion jobs executed in the current tenant.
DBA_OB_BACKUP_DELETE_TASKS This view displays the information about the backup_set/backup_piece deletion tasks being executed in the current tenant.
DBA_OB_BACKUP_DELETE_TASK_HISTORY This view displays the history of the backup_set/backup_piece deletion tasks completed in the current tenant.
DBA_OB_ARCHIVELOG This view displays the status of the log backups on each path.
DBA_OB_ARCHIVELOG_SUMMARY This view displays the status of all log backups in the history and current time.
DBA_OB_ARCHIVELOG_PIECE_FILES This view displays the status of the pieces in a backup set.
DBA_OB_BACKUP_PARAMETER This view displays the backup parameters.
DBA_OB_RECOVER_TABLE_JOBS This view displays information about table-level recovery tasks.
DBA_OB_IMPORT_TABLE_JOBS This view displays information about import tasks.
DBA_OB_IMPORT_TABLE_TASKS This view displays records of table-level import tasks.
DBA_OB_RECOVER_TABLE_JOB_HISTORY This view displays the results of table-level recovery tasks.
DBA_OB_IMPORT_TABLE_JOB_HISTORY This view displays the results of import tasks.
DBA_OB_IMPORT_TABLE_TASK_HISTORY This view displays the history of cross-tenant table-level import tasks.

Statistics and histograms

View name Description
ALL_PART_COL_STATISTICS This view displays the column statistics and histogram information of the partitions of the partitioned tables accessible to the current user.
ALL_PART_HISTOGRAMS This view displays the histogram information of the partitions.
ALL_SUBPART_COL_STATISTICS This view displays the column statistics and histogram information of the subpartitions of the partitioned tables accessible to the current user.
ALL_SUBPART_HISTOGRAMS This view displays the histogram information of the subpartitions.
ALL_TAB_COL_STATISTICS This view displays the column statistics and histogram information of the tables accessible to the current user.
ALL_TAB_HISTOGRAMS This view displays the histogram information of the tables.
ALL_TAB_STATISTICS This view displays the optimizer statistics of the tables accessible to the current user.
DBA_PART_COL_STATISTICS This view displays the column statistics and histogram information of the partitions of the partitioned tables in the database.
DBA_PART_HISTOGRAMS This view displays the histogram information of the partitions.
DBA_SUBPART_COL_STATISTICS This view displays the column statistics and histogram information of the subpartitions of the partitioned tables in the database.
DBA_SUBPART_HISTOGRAMS This view displays the histogram information of the subpartitions.
DBA_TAB_COL_STATISTICS This view displays the column statistics and histogram information of all tables in the database.
DBA_TAB_HISTOGRAMS This view displays the histogram information of the tables.
DBA_TAB_STATISTICS This view displays the optimizer statistics of all tables in the database.
USER_PART_COL_STATISTICS This view displays the column statistics and histogram information of the partitions of the partitioned tables of the current user.
USER_PART_HISTOGRAMS This view displays the histogram information of the partitions.
USER_SUBPART_COL_STATISTICS This view displays the column statistics and histogram information of the subpartitions of the partitioned tables of the current user.
USER_SUBPART_HISTOGRAMS This view displays the histogram information of the subpartitions.
USER_TAB_COL_STATISTICS This view displays the column statistics and histogram information of the tables of the current user.
USER_TAB_HISTOGRAMS This view displays the histogram information of the tables.
USER_TAB_STATISTICS This view displays the optimizer statistics of all tables of the current user.
ALL_TAB_STATS_HISTORY This view displays the table statistics modification history of all tables accessible to the current user.
DBA_TAB_STATS_HISTORY This view displays the table statistics modification history of all tables in the database.
USER_TAB_STATS_HISTORY This view displays the table statistics modification history of all tables owned by the current user.
ALL_IND_STATISTICS This view displays the optimizer statistics of indexes on all tables accessible to the current user.
DBA_IND_STATISTICS This view displays the optimizer statistics of all indexes in the database.
USER_IND_STATISTICS This view displays the optimizer statistics of indexes on all tables owned by the current user.
ALL_TAB_MODIFICATIONS This view displays the cumulative modification information of all tables accessible to the current user.
DBA_TAB_MODIFICATIONS This view displays the cumulative modification information of all tables in the database.
USER_TAB_MODIFICATIONS This view displays the cumulative modification information of all tables owned by the current user.
DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY This view queries the historical execution of table statistics collection.

Users and privileges

View Description
ALL_USERS This view displays all database users that are visible to the current user.
DBA_USERS This view displays all users in the database.
USER_USERS This view displays information about the current user.
ALL_COL_PRIVS The current user is the owner of the object, the grantor, or the grantee. The grantor is an enabled role or PUBLIC. Column privileges granted to the current user.
ALL_TAB_PRIVS The current user is the owner of the object, the grantor, or the grantee. The grantor is an enabled role or PUBLIC. Table privileges granted to the current user.
DBA_COL_PRIVS This view displays all column privileges granted in the database.
DBA_SYS_PRIVS This view displays system privileges granted to users and roles.
DBA_TAB_PRIVS This view displays all object privileges granted in the database.
USER_TAB_PRIVS This view displays object privileges owned by the current user.
USER_COL_PRIVS This view displays column privileges granted to the current user as the owner, grantor, or grantee.
USER_ROLE_PRIVS This view displays roles granted to the current user.
USER_SYS_PRIVS This view displays system privileges granted to the current user.
ROLE_TAB_PRIVS This view displays table privileges granted to roles. It provides information about roles that users can access.
ROLE_SYS_PRIVS This view displays system privileges granted to roles.
ROLE_ROLE_PRIVS This view displays roles granted to other roles. It provides information about roles that users can access.
DBA_ROLE_PRIVS This view displays roles granted to all users and roles in the database.
DBA_ROLES This view displays all roles in the database.
ALL_DIRECTORIES This view displays all directories accessible to the current user.
DBA_DIRECTORIES This view displays all directories accessible to the current user.

Constraints

View Name Description
ALL_CONSTRAINTS This view displays constraint information for all tables accessible to the current user.
ALL_CONS_COLUMNS This view displays column information for constraints in all tables accessible to the current user.
DBA_CONSTRAINTS This view displays constraint information for all tables in the database.
DBA_CONS_COLUMNS This view displays column information for constraints in all tables in the database.
USER_CONSTRAINTS This view displays constraint information for all tables owned by the current user.
USER_CONS_COLUMNS This view displays column information for constraints in all tables owned by the current user.

Audit

View Name Description
ALL_DEF_AUDIT_OPTS This view displays the audit conditions for which any object is audited by default.
AUDIT_ACTIONS This view displays the Action ID and corresponding name in audit records.
DBA_AUDIT_EXISTS This view displays audit trail entries generated by the AUDIT EXISTS and AUDIT NOT EXISTS statements.
DBA_AUDIT_OBJECT This view displays audit trail records for all objects in the database.
DBA_AUDIT_SESSION This view displays audit trail records for CONNECT and DISCONNECT operations.
DBA_AUDIT_STATEMENT This view displays audit trail records for GRANT, REVOKE, AUDIT, NOAUDIT, and ALTER SYSTEM statements in the database.
DBA_AUDIT_TRAIL This view displays all audit trail entries.
DBA_OBJ_AUDIT_OPTS This view displays detailed object-level audit configurations.
DBA_STMT_AUDIT_OPTS This view displays detailed statement-level audit configurations.
STMT_AUDIT_OPTION_MAP This view displays the type, name, and priority of statement-level audit options.
USER_AUDIT_OBJECT This view displays audit trail records for objects accessible to the current user.
USER_AUDIT_SESSION This view displays audit trail records for the connection and disconnection of the current user.
USER_AUDIT_STATEMENT This view displays audit trail entries for GRANT, REVOKE, AUDIT, NOAUDIT, and ALTER SYSTEM statements issued by the current user.
USER_AUDIT_TRAIL This view displays standard audit trail entries related to the current user.

Views

View Name Description
ALL_INDEXES This view displays the index column information of all tables accessible to the user.
ALL_IND_COLUMNS This view displays the index column information of all tables accessible to the user.
ALL_IND_EXPRESSIONS This view displays the information of function-based indexes accessible to the user in the database.
ALL_IND_PARTITIONS This view displays the information of index partitions accessible to the user in the database.
ALL_IND_SUBPARTITIONS This view displays the information of all index subpartitions accessible to the user in the database.
ALL_PART_INDEXES This view displays the partition information of partition indexes accessible to the current user.
DBA_INDEXES This view displays the index information of all tables in the database.
DBA_IND_COLUMNS This view displays the index column information of all tables in the database.
DBA_IND_EXPRESSIONS This view displays the information of all function-based indexes in the database.
DBA_IND_PARTITIONS This view displays the information of all index partitions in the database.
DBA_IND_SUBPARTITIONS This view displays the information of all index subpartitions in the database.
USER_INDEXES This view displays the index information of all tables owned by the user.
USER_IND_COLUMNS This view displays the index column information of all tables owned by the user.
USER_IND_EXPRESSIONS This view displays the information of function-based indexes owned by the user in the database.
USER_IND_PARTITIONS This view displays the information of index partitions owned by the current user in the database. This view does not contain the INDEX_OWNER column, unlike ALL_IND_PARTITIONS and DBA_IND_PARTITIONS.
USER_IND_SUBPARTITIONS This view displays the information of all index subpartitions owned by the user in the database. This view does not contain the INDEX_OWNER column, unlike DBA_IND_SUBPARTITIONS and ALL_IND_SUBPARTITIONS.
USER_PART_INDEXES This view displays the partition information of partition indexes owned by the current user.

PARTITION

View name Description
ALL_PART_KEY_COLUMNS This view displays the columns in the partitioning key for all partitioned objects available to the user.
ALL_PART_TABLES This view displays the partitions of all partition tables that are accessible to the current user.
ALL_SUBPARTITION_TEMPLATES Description
ALL_SUBPART_KEY_COLUMNS This view displays all columns that are included in the subpartitioning key in the partitioned objects that the current user can access.
ALL_TAB_PARTITIONS This view displays the subpartition information, storage parameters, and statistics of all partitioned tables.
ALL_TAB_SUBPARTITIONS This view displays information, storage parameters, and statistics at the partition level for partitions generated by the DBMS_STATS package that are accessible to the current user.
DBA_PART_INDEXES This view displays all partitioned index information.
DBA_PART_KEY_COLUMNS This view displays the columns contained in the partitioning keys for all partitioning objects in the database.
DBA_PART_TABLES This view displays partition information about partitioned tables that the current user can access.
DBA_SUBPARTITION_TEMPLATES Description
DBA_SUBPART_KEY_COLUMNS This view displays all columns of a subpartition key for all partitioned objects in the database.
DBA_TAB_PARTITIONS This view displays all subpartitions, subpartition storage parameters, and partition statistics that are accessible to the current user.
DBA_TAB_SUBPARTITIONS This view displays the names of subpartitions, the tables that they belong to, the names of the partitions they belong to, their storage attributes, and the statistics generated by the DBMS_STATS package.
USER_PART_KEY_COLUMNS This view displays columns included in partition keys in all partitioned objects owned by the current user.
USER_PART_TABLES This view displays the partition information of the current user's partitioned tables.
USER_SUBPARTITION_TEMPLATES Description
USER_SUBPART_KEY_COLUMNS This view displays all subpartition key columns of all partitioned objects owned by the current user.
USER_TAB_SUBPARTITIONS This view displays the subpartition name, the table name, the partition that the subpartition belongs to, and the storage properties for each subpartition of tables that you own.
USER_TAB_PARTITIONS This view displays information about, storage parameters, and statistics of the partitions for all tables and cluster tables of the current user.

Session-related

View name Description
DBA_OB_DEADLOCK_EVENT_HISTORY This view displays the history of deadlocks for the current non-root tenant.

Sequences

View Description
ALL_SEQUENCES This view displays all SEQUENCE objects accessible to the current user.
DBA_SEQUENCES This view displays all SEQUENCE in the database.
USER_SEQUENCES Displays all SEQUENCEs owned by the current user.
TENANT_VIRTUAL_GLOBAL_VARIABLE This view displays the global variables of a tenant.
TENANT_VIRTUAL_SESSION_VARIABLE This view displays the variables of a session.

Synonyms

View Description
ALL_SYNONYMS This view displays all synonyms accessible to the user.
DBA_SYNONYMS This view displays all synonyms in the database.
USER_SYNONYMS Displays synonyms owned by the current user.

Trigger

View Description
ALL_SYNONYMS This view displays all synonyms accessible to the current user.
DBA_SYNONYMS This view displays all synonyms in the database.
USER_SYNONYMS This view displays synonyms owned by the current user.

Triggers

View name Description
ALL_SYNONYMS Displays all synonyms that the user has access to.
DBA_SYNONYMS Displays all synonyms in the database.
USER_SYNONYMS Displays all synonyms owned by the current user.

Triggers

View name Description
ALL_TRIGGERS Description
DBA_TRIGGERS This view displays all triggers in the database.
USER_TRIGGERS This view displays all triggers owned by the current user.

Recycle Bin

View Description
DBA_RECYCLEBIN This view displays information about all recycle bins.
USER_RECYCLEBIN This view displays recycle bin information owned by the current user. The columns in this view are the same as those in DBA_RECYCLEBIN view, but the OWNER column is removed.

Resource groups

View name Description
DBA_RSRC_GROUP_MAPPINGS This view displays the mappings between users and resource groups.
DBA_RSRC_CONSUMER_GROUPS This view displays the resource groups in the database.
DBA_RSRC_PLANS This view displays all resource management plans that are defined in the database.
DBA_RSRC_PLAN_DIRECTIVES This view displays details about every resource plan directive in the database.

NLS

View Description
NLS_DATABASE_PARAMETERS This view displays NLS parameters at the OceanBase Database tenant level.
NLS_INSTANCE_PARAMETERS This view displays instance-level (tenant-level) NLS parameters.
NLS_SESSION_PARAMETERS This view displays the NLS session parameters.

User-Defined Types

View name Description
ALL_COLL_TYPES Type
ALL_TYPES Type
ALL_TYPE_ATTRS Type
DBA_COLL_TYPES Type
DBA_TYPES Type
DBA_TYPE_ATTRS Type
USER_COLL_TYPES Type
USER_TYPES Type
USER_TYPE_ATTRS Type

Storage objects

View name Description
ALL_ERRORS This view displays errors of the storage objects that the user can access.
DBA_ERRORS This view displays errors of the storage objects in the database.
USER_ERRORS This view displays errors of the storage objects that the user can access.
DBA_SEGMENTS This view displays storage information of all segments in the database.
USER_SEGMENTS This view displays storage information of segments of the objects in the current user's schema.

PROFILE

View name Description
ALL_PROFILES This view displays all profiles and the limits of these profiles.
DBA_PROFILES This view displays all profiles and the limits of these profiles.
USER_PROFILES This view displays all profiles and the limits of these profiles.

Replicas and logs

View name Description
DBA_OB_LS_LOCATIONS This view displays the distribution of log stream (LS) replicas in the current tenant.
DBA_OB_TABLEGROUPS This view displays the metadata of table groups, mainly the partition information of table groups.
DBA_OB_TABLEGROUP_PARTITIONS This view displays the primary partitions of the partitioned table groups.
DBA_OB_TABLEGROUP_SUBPARTITIONS This view displays the secondary partitions of the partitioned table groups.
DBA_OB_TABLET_REPLICAS This view displays all tablet replicas in the current tenant. Each tablet replica is uniquely identified by the joint key: <TABLET_ID, SVR_IP, SVR_PORT, LS_ID>.
DBA_OB_TABLET_TO_LS This view displays all tablets in the current tenant and the log stream information to which each tablet belongs.
DBA_OB_LS This view displays the status and recovery progress of log streams.
DBA_OB_LS_REPLICA_TASK_HISTORY This view displays the history of disaster recovery tasks.

WR-related

View name Description
DBA_WR_SNAPSHOT This view displays the SNAPSHOT information of the current tenant.
DBA_WR_ACTIVE_SESSION_HISTORY This view displays the ASH data of the current tenant.
DBA_WR_STATNAME This view displays the names of the system statistics of the current tenant.
DBA_WR_SYSSTAT This view displays the details of the system statistics of the current tenant.
DBA_WR_CONTROL This view displays the WR-related configuration information.
DBA_WR_SYSTEM_EVENT This view displays the tenant-level waiting event information of the current tenant.
DBA_WR_EVENT_NAME This view displays the tenant-level waiting event names of the current tenant.
DBA_WR_SQLTEXT This view displays the SQL texts collected by WR of the current tenant.

SQLSTAT-related

View name Description
DBA_WR_SQLSTAT This view displays the basic performance statistics of the SQL statements executed by the current tenant.

SQLSTAT-related

View name Description
DBA_WR_SYS_TIME_MODEL This view displays the WR data of the Time Model statistics of the current tenant.

Load balancing

View name Description
DBA_OB_OBJECT_BALANCE_WEIGHT This view displays all partitions with special weights set in the current user's tenant.
DBA_OB_TRANSFER_PARTITION_TASKS This view displays the Transfer Partition tasks currently being processed in the current tenant.
DBA_OB_TRANSFER_PARTITION_TASK_HISTORY This view displays the history of Transfer Partition tasks executed in the current tenant.

Scheduler

View name Description
DBA_SCHEDULER_JOBS This view displays the scheduler job information accessible to the current user.
DBA_SCHEDULER_PROGRAM This view displays all scheduler information in the database.
DBA_SCHEDULER_JOB_RUN_DETAILS This view displays all scheduler job information in the tenant.

DBLINK-related

View name Description
ALL_DB_LINKS This view displays all DBLINKs accessible to the current user.
DBA_DB_LINKS This view displays all DBLINKs created in the current tenant.
USER_DB_LINKS This view displays all DBLINKs created by the current user.

Views Not Supported

View Purpose
ALL_METHOD_PARAMS Type
ALL_SCHEDULER_JOB_ARGS This view displays user-specified scheduler job arguments.
ALL_SCHEDULER_PROGRAM_ARGS This view displays the user-accessible scheduler program arguments.
ALL_TYPE_METHODS Type
DBA_METHOD_PARAMS Type
DBA_SCHEDULER_JOB_ARGS This view displays the parameter information of the scheduled jobs in the database.
USER_SCHEDULER_JOB_ARGS This view displays the parameter information of scheduled jobs owned by the current user.
DBA_SCHEDULER_PROGRAM_ARGS This view displays the Scheduler program arguments information.
USER_SCHEDULER_PROGRAM_ARGS This view displays the parameters of programs for the current user.
DBA_TYPE_METHODS Type
USER_TYPE_METHODS Type

PL/SQL related

View Purpose
ALL_PLSQL_TYPES Type
ALL_PLSQL_COLL_TYPES Type
ALL_PLSQL_TYPE_ATTRS Type

Overview of performance views

ASH related

View name Description
GV$OB_ACTIVE_SESSION_HISTORY This view displays the active session history.

Statistics

View name Description
GV$OB_KVCACHE This view displays the KVCACHE information on each OBServer node.
GV$OB_PARAMETERS This view displays the configuration information on all OBServer nodes where the tenant resides.
GV$OB_SERVER_SCHEMA_INFO This view displays the schema information on all servers.
V$OB_SERVER_SCHEMA_INFO This view displays the schema information on all servers.
GV$OB_UNITS This view displays the unit information on the OBServer node where the tenant resides. The system tenant can view the unit information on all OBServer nodes in the cluster.
GV$SYSSTAT This view displays the system-level statistical events on all servers.
GV$DML_STATS This view displays the DML information in the current user table.
V$DML_STATS This view displays the DML information in the current user table.
V$GLOBALCONTEXT This view displays the CLIENT_IDENTIFIER value of the global context attribute accessible by the current session.
V$OB_KVCACHE This view displays the KVCACHE information on each OBServer node.
V$OB_PARAMETERS This view displays the configuration information on the current OBServer node.
V$SYSSTAT This view displays the system-level statistical events on the current server.
V$OB_UNITS This view displays the unit information on the current OBServer node.
V$VERSION This view displays the names and versions of all components of the database product.
V$STATNAME This view displays the names of statistical items.

Instance related

View Description
GV$INSTANCE This view displays the status of the current database instance.
V$INSTANCE This view displays the status of the current database instance.

Cache-related

GV$OB_PLAN_CACHE_PLAN_EXPLAIN This view displays the physical execution plans cached in the plan cache of all servers.
GV$OB_PLAN_CACHE_PLAN_STAT This view records the status of each cached object in the plan cache of all servers for the current tenant.
GV$OB_PLAN_CACHE_STAT This view records the overall status of the plan cache on all servers for the current tenant.
V$OB_PLAN_CACHE_PLAN_EXPLAIN This view displays the physical execution plans cached in the plan cache of the current server.
V$OB_PLAN_CACHE_PLAN_STAT This view records the status of each cached object in the plan cache of the current server for the current tenant.
V$OB_PLAN_CACHE_STAT This view records the overall status of the plan cache on all servers for the current tenant.
V$RSRC_PLAN This view displays the resource management plan of the current active tenant.
GV$OB_PL_CACHE_OBJECT This view displays the basic information of PL/SQL cache objects for all tenants.
V$OB_PL_CACHE_OBJECT This view displays the basic information of PL/SQL cache objects for all tenants.

Log-related

View name Description
GV$OB_LOG_STAT This view displays the status of the Palf.
V$OB_LOG_STAT This view displays the status of the Palf.

Monitoring information

View name Description
GV$OB_PX_TARGET_MONITOR This view displays the PX thread usage on all OBServer nodes.
GV$OB_PS_ITEM_INFO This view provides monitoring information for prepared statements. It contains the basic information of all prepared statements in the PS cache.
GV$OB_PS_STAT This view monitors the overall status of the PS cache, including the hit rate, memory usage, and the number of cached items.
GV$OB_DTL_INTERM_RESULT_MONITOR This view displays the monitoring information of the DTL intermediate result manager.
V$OB_DTL_INTERM_RESULT_MONITOR This view displays the monitoring information of the DTL intermediate result manager.
V$OB_PX_TARGET_MONITOR This view displays the PX thread usage on the OBServer node.
V$OB_PS_ITEM_INFO This view provides monitoring information for prepared statements. It contains the basic information of all prepared statements in the PS cache.
V$OB_PS_STAT This view monitors the overall status of the PS cache, including the hit rate, memory usage, and the number of cached items.
V$SQL_MONITOR_STATNAME This view displays the meaning of the numbers in the OTHERSTAT_X_ID field of GV$SQL_PLAN_MONITOR.

Session related

View name Description
GV$OB_PROCESSLIST This view displays session information on all OBServer nodes of the current tenant.
GV$SESSION_WAIT This view displays information about the current or last wait event of all sessions on all servers, including the wait event name and wait time.
GV$SESSION_WAIT_HISTORY This view displays information about the last 10 wait events of all sessions on all servers.
GV$SESSTAT This view displays session-level statistics on all servers.
GV$ACTIVE_SESSION_HISTORY This view displays the history of active sessions.
V$ACTIVE_SESSION_HISTORY This view displays the history of active sessions.
V$NLS_PARAMETERS This view displays NLS parameters at the session level.
V$OB_PROCESSLIST This view displays session information on the current OBServer node.
V$SESSION_WAIT This view displays information about the current or last wait event of all sessions on the current server, including the wait event name and wait time.
V$SESSION_WAIT_HISTORY This view displays information about the last 10 wait events of all sessions on the current server.
V$SESSTAT This view displays session-level statistics.
V$EVENT_NAME This view displays event definitions under the current tenant.

Cgroup related

View name Description
GV$OB_CGROUP_CONFIG This view is used to query the cgroup configuration of the OBServer.
V$OB_CGROUP_CONFIG This view is used to query the cgroup configuration of the OBServer.

SQL-related statistics

View name Description
GV$OB_SQL_AUDIT This view displays the source and execution status of each SQL request on all servers.
V$OB_SQL_AUDIT This view displays the source and execution status of each SQL request on the current server.
GV$SQL_PLAN_MONITOR This view displays the plan-level statistics of slow queries on all OBServer nodes. Each slow query has a corresponding statistical record, and the trace information of the plan is also recorded.
V$SQL_PLAN_MONITOR This view displays the plan-level statistics of slow queries on all OBServer nodes. Each slow query has a corresponding statistical record, and the trace information of the plan is also recorded.
GV$OB_FLT_TRACE_CONFIG This view displays the diagnostic information of end-to-end tracing.
GV$OB_SESSION_PS_INFO This view displays the PS information opened by all sessions in the current tenant.
V$OB_SESSION_PS_INFO This view displays the PS information opened by all sessions in the current OBServer tenant.

Threads

View name Description
GV$OB_PX_WORKER_STAT In parallel execution scenarios, view the execution information of each thread.
V$OB_PX_WORKER_STAT In parallel execution scenarios, view the execution information of each thread.

Workarea

View name Description
GV$SQL_WORKAREA This view displays the workarea statistics of all operators executed by SQL automatic memory management.
GV$SQL_WORKAREA_ACTIVE This view displays the workarea information of the current active operators.
GV$SQL_WORKAREA_HISTOGRAM This view displays the workarea statistics of all previous executions.
V$OB_SQL_WORKAREA_MEMORY_INFO This view queries some overall information about the SQL workarea, including the maximum available memory, current used memory, and current held memory.
V$SQL_WORKAREA This view displays the workarea statistics of all operators executed by SQL automatic memory management.
V$SQL_WORKAREA_ACTIVE This view displays the workarea information of the current active operators.
V$SQL_WORKAREA_HISTOGRAM This view displays the workarea statistics of all previous executions.

Transaction-related

View Description
GV$OB_COMPACTION_PROGRESS This view displays the OBServer-level major compaction progress of the tenant.
GV$OB_COMPACTION_SUGGESTIONS This view displays the major compaction suggestions.
GV$OB_COMPACTION_DIAGNOSE_INFO This view displays the major compaction diagnostic information.
GV$OB_TABLET_COMPACTION_HISTORY This view displays the history of major compactions at the tablet level.
GV$OB_TABLET_COMPACTION_PROGRESS This view displays the progress of major compactions at the tablet level.
GV$OB_TRANSACTION_PARTICIPANTS This view displays the information about transaction participants on all OBServer nodes.
GV$SYSTEM_EVENT This view displays the system-level wait events of the tenant on all servers, including the number of occurrences, wait time, and number of timeouts for each type of wait event.
GV$GLOBAL_TRANSACTION This view displays the information about active global transactions.
V$OB_COMPACTION_PROGRESS This view displays the server-level major compaction progress of the tenant.
V$OB_COMPACTION_SUGGESTIONS This view displays the major compaction suggestions.
V$OB_COMPACTION_DIAGNOSE_INFO This view displays the major compaction diagnostic information.
V$OB_TABLET_COMPACTION_HISTORY This view displays the history of major compactions at the tablet level.
V$OB_TABLET_COMPACTION_PROGRESS This view displays the progress of major compactions at the tablet level.
V$OB_TRANSACTION_PARTICIPANTS This view displays the information about transaction participants on all OBServer nodes.
V$SYSTEM_EVENT This view displays the system-level wait events of the tenant on the current server, including the number of occurrences, wait time, and number of timeouts for each type of wait event.
V$GLOBAL_TRANSACTION This view displays the information about active global transactions.
GV$OB_GLOBAL_TRANSACTION This view displays the information about all XA transactions in the cluster.
V$OB_GLOBAL_TRANSACTION This view displays the information about all XA transactions whose original scheduler is the current node.

Time zone

View name Description
V$TIMEZONE_NAMES This view displays the valid time zone names.

Encrypted tables

View name Description
V$OB_ENCRYPTED_TABLES This view displays the encryption status of tables with encryption enabled.
V$ENCRYPTED_TABLESPACES This view displays the encryption status of tablespaces with encryption enabled.

DBLINK

View name Description
GV$DBLINK This view displays all database links ( IN_TRANSACTION=YES ) opened after the query session issuing this view. These database links must be committed or rolled back before they are closed.
V$DBLINK This view displays all database links ( IN_TRANSACTION=YES ) opened after the query session issuing this view. These database links must be committed or rolled back before they are closed.

SQLSTAT related

View name Description
GV$OB_SQLSTAT This view displays the basic performance statistics of SQL statements in the cluster. Each SQL statement is represented by a row (i.e., each unique combination of SQL_ID and Plan_Hash is a row).
V$OB_SQLSTAT This view displays the basic performance statistics of SQL statements on the current node. Each SQL statement is represented by a row (i.e., each unique combination of SQL_ID and Plan_Hash is a row).

Time Model related

View name Description
GV$OB_SESS_TIME_MODEL This view displays the Time Model statistics at the session level in the cluster.
V$OB_SESS_TIME_MODEL This view displays the Time Model statistics at the session level on the current node.
GV$OB_SYS_TIME_MODEL This view displays the Time Model statistics at the tenant level in the cluster.
V$OB_SYS_TIME_MODEL This view displays the Time Model statistics at the tenant level on the current node.

Resource group statistics

View name Description
GV$OB_RES_MGR_SYSSTAT This view displays the statistics of resource groups in all OBServer nodes of the current tenant.
V$OB_RES_MGR_SYSSTAT This view displays the statistics of resource groups in all OBServer nodes of all tenants.

DBLINK

View name Description
GV$DBLINK This view displays all database links ( IN_TRANSACTION=YES ) opened after the query session issuing this view. These database links must be committed or rolled back before they are closed.
V$DBLINK This view displays all database links ( IN_TRANSACTION=YES ) opened after the query session issuing this view. These database links must be committed or rolled back before they are closed.

SQLSTAT related

View name Description
GV$OB_SQLSTAT This view displays the basic performance statistics of SQL statements in the cluster. Each SQL statement is represented by a row (i.e., each unique combination of SQL_ID and Plan_Hash is a row).
V$OB_SQLSTAT This view displays the basic performance statistics of SQL statements on the current node. Each SQL statement is represented by a row (i.e., each unique combination of SQL_ID and Plan_Hash is a row).

Time Model related

View name Description
GV$OB_SESS_TIME_MODEL This view displays the Time Model statistics at the session level in the cluster.
V$OB_SESS_TIME_MODEL This view displays the Time Model statistics at the session level on the current node.
GV$OB_SYS_TIME_MODEL This view displays the Time Model statistics at the tenant level in the cluster.
V$OB_SYS_TIME_MODEL This view displays the Time Model statistics at the tenant level on the current node.

Resource group statistics

View name Description
GV$OB_RES_MGR_SYSSTAT This view displays the statistics of resource groups in all OBServer nodes of the current tenant.
V$OB_RES_MGR_SYSSTAT This view displays the statistics of resource groups in all OBServer nodes of all tenants.

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Dictionary views overview
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Overview of views in an Oracle tenant
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Overview of performance views