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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 - V4.4.2

  • What's New
  • What is OceanBase Database
    • Overview
    • Feature differences between the 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-compatible mode)
      • Basic SQL operations (Oracle-compatible mode)
    • Build a sample application (MySQL-compatible mode)
      • Build a Python application
      • Build a Java application
      • Build a C application
      • Build a Go application
    • Build a sample application (Oracle-compatible 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-compatible 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
        • Connect to OceanBase Database by using DBeaver
        • Connect to OceanBase Database by using Navicat
        • Use database connection pool
          • Connection pool configuration
          • Tomcat
          • c3p0
          • Proxool
          • HikariCP
          • DBCP
          • Commons Pool
          • Druid
          • JDBC
      • Sample applications
        • Java
          • Spring Boot
          • Spring Batch
          • Spring JDBC
          • Spring Data JPA
          • Hibernate
          • MyBatis
          • Connector/J
          • TestContainers
        • Python
          • mysqlclient
          • PyMySQL
          • MySQL-connector-python
          • SQLAlchemy
          • Django
          • peewee
        • C
          • MySQL Connector/C
        • Go
          • Go-SQL-Driver/MySQL
          • GORM
        • PHP
          • EXT
          • MySQLi
          • PDO
        • Rust
          • Connect to OceanBase Database by using Rust
          • Connect to OceanBase Database by using SeaORM
        • Ruby
          • ActiveRecord
          • mysql2
          • Sequel
      • 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
        • Generate test data in batches
      • 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
          • Lock query results with SELECT FOR UPDATE
          • Use the SELECT ... LOCK IN SHARE MODE statement to lock query results
          • Use regular expressions in queries
        • Use a DBLink in queries
        • Set operations
      • Transactions
        • Transaction management 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
          • Error code introduction
          • Error handling specifications 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-compatible mode)
      • Connect to OceanBase Database
        • Overview of connection methods
        • Connect to an OceanBase tenant by using OBClient
        • Connect to OceanBase Database by using ODC
        • Connect to OceanBase Database using DBeaver (Oracle-compatible mode)
        • Connect to OceanBase Database by using Navicat (Oracle-compatible mode)
        • 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
        • Python
          • Python Driver Oracle Mode
        • 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
        • Generate test data in batches
      • Read data
        • Single-table query
        • Join tables
          • INNER JOIN queries
          • FULL JOIN queries
          • LEFT JOIN queries
          • RIGHT JOIN queries
          • Subqueries
          • Lateral derived tables
        • 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
        • Pagination
      • Transactions
        • Transaction management 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
  • Deploy
    • Deployment 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
          • OCP deployment instructions
          • Upload installation packages
          • Create MetaDB
          • Deploy OCP
        • Deploy OceanBase clusters 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 OBServer nodes by using oatcli
          • (Optional) Configure the clock source
        • Deploy OceanBase clusters using 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 the OceanBase Database Java SDK
    • Deploy OceanBase Database Community Edition
      • Deployment overview of OceanBase Database Community Edition
      • Deploy locally
        • Hardware and software requirements
        • Before deployment
          • (Optional) Create a user
          • (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
        • 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 OceanBase Database in a container environment
      • Deploy an OceanBase cluster in a Kubernetes environment
      • Deploy OceanBase Desktop
    • Clean up an OceanBase cluster
    • Recommended configurations
  • Migrate
    • Data migration Overview
    • Migrate from MySQL databases to OceanBase Database
      • Use OMS to migrate data from a MySQL database to a MySQL-compatible 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-compatible tenant of OceanBase Database to a MySQL database
      • Use OMS to migrate incremental data from an Oracle-compatible 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-compatible tenant of OceanBase Database
      • Use OMS to migrate data from an Oracle database to an Oracle-compatible 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-compatible 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-compatible tenant of OceanBase Database
      • Use OMS to migrate data from a DB2 LUW database to an Oracle-compatible 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-compatible tenant of OceanBase Database to a DB2 LUW database
      • Use OMS to migrate data from an Oracle-compatible 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-compatible tenant of OceanBase Database
    • Migrate from PostgreSQL databases to OceanBase Database
      • Use OMS to migrate data from a PostgreSQL database to a MySQL-compatible tenant of OceanBase Database
    • Migrate from CSV files to OceanBase Database
      • Use DataX to migrate CSV files to OceanBase Database
      • Import data by using the LOAD DATA statement
    • 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 create an active-active disaster recovery project for OceanBase Database tenants of the same type
      • Use obloader & obdumper to migrate data between MySQL-compatible tenants in OceanBase Database
      • Use obloader & obdumper to migrate data from a MySQL-compatible tenant to an Oracle-compatible tenant in OceanBase Database
      • Use obloader & obdumper to migrate data between Oracle-compatible tenants in OceanBase Database
      • Use obloader & obdumper to migrate data from an Oracle-compatible tenant to a MySQL-compatible tenant in OceanBase Database
    • Migrate data using SQL statements
      • Migrate data between tables
      • Migrate resource units
      • Export data using the OUTFILE statement
    • Overview of direct load
  • Manage
    • Log in to an OceanBase tenant
    • Manage clusters
      • Cluster introduction
      • 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
        • Reset cluster parameters
        • Upgrade a cluster
          • OceanBase Database Enterprise Edition
            • Upgrade overview
            • Upgrade an arbitration service
            • Upgrade an OceanBase cluster
            • Check upgrade results
          • 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
          • Resource isolation overview
          • Manage resource isolation (Oracle-compatible mode)
            • Configure cgroups
            • Configure global CPU resource isolation for frontend and backend 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-compatible mode)
            • Configure cgroups
            • Configure global CPU resource isolation for foreground and background tasks
            • Calibrate the disk performance
            • Configure resource isolation within a tenant
            • Update resource management plan directive
            • Delete a plan directive
            • Delete a resource management plan
            • Delete a resource group
            • Clear cgroup configurations
          • Example configuration for resource isolation of background tasks
        • View 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 and out
          • Resource planning for tenant scale-in and scale-out
          • Tenant pre-scaling
          • Modify the unit config for a tenant
          • Adjust the unit number for tenant scaling in and out
          • Modify the number of primary zones for a tenant
          • Example of smooth scaling in and out
        • 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 pools
          • Allocate a resource pool to a tenant
          • Remove a resource pool from a tenant
          • Merge and split resource pools
          • Drop a resource pool
        • Manage unit configs
          • Query resource specifications (unit configs)
          • Modify resource specification (unit config)
          • Delete resource specification (unit config)
        • Manage services
          • Create a service
          • Query the service status
          • Start a service
          • Stop a service
          • Delete a service
    • Manage log streams
      • Create a log stream
      • Modify a log stream
    • Manage replicas
      • Replica introduction
      • Use columnstore replicas
      • Replica distribution
        • Locality overview
        • Common locality operations
          • View locality
          • Modify locality
          • Add replicas
          • Reduce replicas
          • Change the replica type
          • Adjust replica distribution
          • 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 of data load balancing
      • Transfer partitions
      • Cancel a "Transfer Partition" task
      • Cancel a load balancing job
      • Pause and resume a load balancing job
      • Table group weight management
        • Aggregation of user tables in a database
        • Set table group weights
        • Clear table group weights
        • Application scenarios of table group weight balancing
      • Partition weight management
        • Set partition weights
        • Clear partition weights
      • Partition balancing
        • Configure a scheduled partition balance task
        • Manually trigger partition balancing
        • View the configuration of the scheduled partition balancing task
        • View the trigger history of the scheduled partition balancing task
        • View the partition balancing tasks in the background
        • View the history of partition balancing tasks in the background
      • Isolating GTS for high availability: a practical example
    • High availability
      • High availability overview
      • Multi-replica disaster recovery
        • Data link introduction
        • Proxy layer high availability
        • Database-level high availability
        • Disaster recovery architecture and levels
      • Physical standby database disaster recovery
        • Physical standby database overview
        • Limitations
        • Create a standby tenant
          • Preparations before creating standby tenants
          • 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
          • Log transmission service overview
          • Configure log transmission service
            • Set a log restore source
            • Specify a log restore endpoint
          • View log restore source information
          • View the log synchronization progress
          • Pause or resume log synchronization
          • Optimize the log synchronization performance
          • Set the log synchronization bandwidth limit
          • Set log synchronization compression
        • Log storage service
        • Switch roles
          • Overview of tenant roles
          • Switchover
          • Failover
        • Delete a primary or standby tenant
      • Arbitration high availability
        • Arbitration service 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 and downgrade information
        • Replace the arbitration service for a cluster
        • Remove the arbitration service for a cluster
        • Clear residual cluster information
      • Manage recycle bin
        • 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 of security and privileges
      • Identification and authentication
        • MySQL-compatible mode
          • Identity authentication
          • Password complexity
          • Login failure processing
        • Oracle-compatible mode
          • Identity authentication
          • Password complexity
          • Login failure processing
      • Access control
        • Access control overview
        • Users and permissions
          • Overview of users and privileges
          • MySQL-compatible mode
            • Privilege types in MySQL-compatible mode
            • Create a user
            • Grant direct privileges
            • Privilege delegation
            • Role management
              • 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-compatible mode
            • Privilege types in Oracle-compatible mode
            • Create a user
            • View the information of a user
            • Grant direct privileges
            • Privilege delegation
            • Manage roles
              • Overview of role management
              • 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
            • Grant 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 encryption
        • Data encryption overview
        • Data transfer encryption
          • Data transmission encryption overview
          • OBServer transmission encryption
          • ODP transmission encryption
        • Tenant master key management
          • Overview of tenant master keys
          • Generate a tenant master key (MySQL-compatible mode)
          • Generate a tenant master key (Oracle-compatible mode)
        • Transparent data encryption
          • Database transparent encryption overview
          • Transparent data encryption (MySQL-compatible mode)
            • Enable TDE for new tables
            • Enable TDE for existing tables
            • Decrypt a table
          • Transparent data encryption (Oracle-compatible mode)
            • Enable TDE for new tables
            • Enable TDE for existing tables
            • Decrypt a table
        • Column encryption
          • Overview of column encryption
          • Column encryption (MySQL-compatible mode)
            • Create a column encryption rule
            • Column encryption privilege management
          • Column encryption (Oracle-compatible mode)
            • Create a column encryption rule
            • Column encryption privilege management
          • Frequently asked questions about column encryption
      • Security audit
        • Security audit overview
        • MySQL-compatible mode
          • Enable security auditing
          • Set auditing rules
          • View auditing records
          • Disable security auditing
        • Oracle-compatible mode
          • Enable security auditing
          • Set and view auditing rules
          • View auditing records
          • Audit user logins
          • Audit user operations
          • Audit specified database objects
    • Backup and restore
      • Overview of physical backup and restore
      • Experience physical backup and restore with simplified deployment
      • Deploy NFS
      • Log archive
        • Overview of log archiving
        • Prepare for log archiving
        • Enable ARCHIVELOG
        • Suspend archiving
        • Disable ARCHIVELOG
        • View information about pieces
        • View the archiving progress
        • View the archiving history
        • View archiving parameter settings
        • Change the archive destination
        • Clear the archive path configuration
        • Views related to log archiving
      • Data backup
        • Overview
        • Prepare for backup
        • 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 parameters related to data backup
        • Modify the source-side backup path configuration
        • Change the backup destination
        • Views related to data backup
      • Update `access_id` and `access_key` information for the backup or archive path
      • Clear backup data
        • Automatically clear backup data
          • Automatically clean up expired backups
          • Delete a cleanup policy
        • Manually clear backup data
          • Manually trigger the cleanup of expired backups
          • Manually clean up specified backup or archive data
          • Manually clear the backup path or archive path
        • Cancel a cleanup task
        • Query the backup cleanup progress
        • View the results of backup cleanup
        • 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
        • Overview of table-level restore
        • Preparations before table-level restore
        • Perform table-level restore
        • Schema restore after table-level restore
        • Cancel table-level restore
        • Check the progress of table-level restore
        • Check the results of table-level restore
        • Parameters related to table-level restore
        • Views related to table-level restore
      • Backup and restore performance tuning
      • Example of configuring the source backup and archive paths
      • Appendix: S3 path format
    • Monitor
      • Monitoring overview
      • Metrics
        • System monitoring
          • System monitoring metrics overview
          • SYSSTAT metrics
          • Wait events
          • Latch events
        • SQL monitoring
          • SQL monitoring overview
          • SQL audit
          • Execution plans
      • Cases
    • Logs
      • Overview
      • Log levels
      • Log interpretation
      • 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
    • Routine inspection
      • Routine inspection overview
      • Check cluster parameters
      • Check host information
      • Check tenant resource usage
      • Check cluster resource usage
      • Check OBServer status
      • Check the NTP offset
      • Deadlock detection
      • End-to-end tracing
        • End-to-end tracing overview
        • End-to-end tracing process
        • End-to-end tracing methods
        • Show end-to-end tracing information
        • Quick start: End-to-end diagnosis with obdiag
    • Performance tuning
      • Performance tuning overview
      • Identify bottlenecks on the data link
      • Identify bottlenecks within components
        • ODP performance bottlenecks
        • ODP performance analysis
        • OBServer performance bottlenecks
          • OBServer performance issues overview
          • Non-optimal plan
            • Non-optimal plan
            • Buffer tables
            • Plan optimality for account size skew
          • Hard parsing issues
          • Capacity issues
          • Internal wait events
      • SQL tuning
        • SQL tuning system
        • Execution plan optimization
          • Statistical information and row estimation
            • Overview of statistics and row estimation mechanism
            • Statistical information
              • Overview
              • Collect statistical information
                • Overview
                • Manually collect statistics
                • Automatic statistics collection
              • 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 selectivity
              • Row estimation based on the storage layer
            • Use statistical information and row estimation
          • Plan management
            • Plan cache overview
            • Disadvantages of the plan cache and countermeasures
            • Views related to the plan cache
          • Index selection
            • Index selection overview
            • Reduce row reads
            • Avoid table access by index primary key
            • Avoid sorting
          • Join
            • Joins
            • Join algorithm
              • Nested loop joins
              • Hash Join
              • Merge join
              • Common business issues
            • Join types
            • Join order
          • Order and limit optimization
            • Overview of order by and limit optimization
            • 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 SQL tuning scenarios and cases
    • Troubleshooting
      • Error handling fundamentals
      • Bootstrap
      • Storage
        • Dump and major compaction
        • Memory-related issues
        • Migration, replication, and rebuild
      • Election
        • Election
        • Leader switchover exceptions
        • No leader
      • Transaction
        • Transaction issues
        • Transaction rollbacks
        • Long transaction
        • Hung transaction
        • Idle transaction
      • 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
      • FAQ about manual operations on log streams
      • Materialized view exception diagnosis
      • Troubleshoot SQL execution errors
      • Application exceptions -- error messages without OceanBase error codes
      • Application exceptions -- error messages with OceanBase error codes
      • Troubleshoot application disconnection issues
      • External table common issue troubleshooting guide
      • Troubleshooting with ASH
        • General approach to troubleshooting using ASH
        • Troubleshoot CPU resource imbalance
        • Troubleshoot I/O bottlenecks
      • Frequently used SQL for troubleshooting
        • Query tenant_id and table_id
        • Information about the table
        • Query the primary table of an index
        • Query table fragmentation
        • View indexes with abnormal status
        • Query deadlocks
        • Query the partition name
        • Query the number of temporary tables
        • Query row locks
    • Emergency response
      • Emergency response overview
      • Analysis, diagnosis, and decision-making procedure
      • Common emergency problem handling
        • Hardware issues
          • Node failure
          • Network jitter
          • ODP failure
          • Other hardware and network issues
        • Capacity issues
          • SQL query exceptions
          • 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
  • OceanBase AP
    • Release note for AP core features
    • Overview of OceanBase AP
    • Core features
    • Quick start with OceanBase Database AP
    • Deployment
      • Overview of OceanBase Database AP deployment
      • Parameter configuration recommendations for AP scenarios
    • Data table design
      • Overview of tables
      • Data distribution
        • Dynamic partitioning
      • Data design best practices
        • Data table design and query optimization in AP scenarios
        • JSON Multi-Valued and Full-Text Indexing
        • Table partitioning design in OLAP scenarios
    • Data migration
      • Data migration overview
      • Migrate data from a heterogeneous data source to OceanBase Database
      • Homogeneous data migration
      • Migrate data from the big data ecosystem
      • Migrate data from a mainstream AP database to OceanBase Database
    • Data collection
      • Overview
      • Data subscription
      • Import data
        • Overview
        • Direct load
          • Overview of direct load
          • Full direct load
          • Incremental direct load
          • Import data in direct load mode by using obloader
          • Efficient data loading with full direct load and partition exchange
        • Import data to an external table
        • Data import strategies and best practices
    • Data processing
      • Data processing in OceanBase
      • Data processing tools
      • 800.ap-materialized-views
        • Query acceleration using materialized views
        • Practice scenarios of materialized views
    • Data lake
      • Data catalog
        • Overview of data catalogs
        • Internal catalog
        • ODPS catalog
        • HMS Catalog
      • External table
        • External table overview
        • External tables
        • MaxCompute external tables
      • URL external tables of OceanBase Database
    • Query acceleration
      • Overview
      • Statistics
      • Select a query parallelism level
    • Export data
    • Data visualization
    • Performance diagnosis and tuning
      • Use the DBMS_XPLAN package for performance diagnostics
      • Use the GV$SQL_PLAN_MONITOR view for performance analysis
      • Views related to AP performance analysis
    • Ecosystem integration
    • Tutorials
      • AP tutorial
      • Accelerate offline queries in OceanBase by using the HMS catalog
      • Query and read/write MaxCompute (ODPS) data in OceanBase Database
    • AP FAQ
  • OceanBase AI
    • Overview
      • Overview of vector search
      • Core features of vector search
      • AI application workflow using OceanBase vector search
    • Quick start
      • Quick start: vector search with SQL
      • Quick start: vector search with Python
    • Vector embedding technology
    • Store vector data
    • Vector index
      • Overview
      • Vector index memory management
      • Dense vector index
        • Overview
        • Index type selection
        • HNSW series index
        • IVF series index
      • Monitor and maintain indexes
      • Optimize the performance of vector search
    • SQL functions
    • Vector similarity search
    • Hybrid search
      • Full-text and vector hybrid search
    • AI function service
      • AI function service quick start
      • AI function service permissions
      • AI model registration
      • AI function syntax and examples
    • Migrate to OceanBase Database from a vector database
    • Tutorials
      • Vector search tutorial overview
      • Build an intelligent Q&A chatbot with OceanBase
      • Build an image search application with OceanBase Database
      • Build a cultural tourism assistant with OceanBase multi-model integration
    • AI integrations
      • Overview of AI integration
      • OpenAI
      • Qwen
      • LangChain
      • LlamaIndex
      • Dify
      • n8n
      • Trae
      • Spring AI
      • Cline
      • Cursor
      • Continue
    • VectorDBBench benchmark testing
    • References
      • Overview of vector data types
      • Compatibility
      • Supported clients and languages
        • Supported clients and languages for vector search
        • pyobvector Python SDK interface
        • Java SDK interface
    • Vector search FAQ
  • Integrations
    • Integration overview
    • ORM frameworks
      • Java
        • Spring Boot
        • SpringBatch
        • Connect to OceanBase Database by using Spring JDBC
        • SpringDataJPA
        • Hibernate
        • MyBatis
      • Python
        • SQLAlchemy
        • peewee
        • Tortoise ORM
      • Go
        • GORM
        • beego ORM
      • Rust
        • SeaORM
        • Diesel
      • Ruby
        • Active Record
        • Sequel
        • Ruby on Rails
      • Node.js
        • Sequelize
        • TypeORM
        • Prisma
        • Drizzle
      • C#
        • Dapper
        • SqlSugar
        • FreeSQL
      • PHP
        • Yii 2.0 ORM
        • Laravel Eloquent ORM
    • Database version management
      • Liquibase
      • Flyway
    • Data integration
      • Apache Flink
        • Apache Flink
        • Flink DirectLoad
        • Flink Connector OceanBase
      • dbt
      • SeaTunnel
      • Dataphin
      • Maxwell
      • Debezium
      • Spark Catalog
      • NiFi
      • Qlik Replicate
      • RisingWave MySQL-CDC
    • SQL development
      • WebLogic
      • DBeaver
      • Navicat
      • DataGrip
      • TablePlus
      • DMS
    • Orchestration and scheduling
      • DolphinScheduler
      • Linkis
    • Visualization tools
      • Superset
      • Power BI
      • Quick BI
      • Tableau
      • GuanData
      • vividime
      • Excel
    • Database management
      • NineData
      • Bytebase
      • DataHub
      • Zabbix
    • AI
      • OpenAI
      • Qwen
      • LangChain
      • LlamaIndex
      • Dify
      • n8n
      • Trae
      • SpringAI
      • Cline
      • Cursor
      • Continue
      • MCP Toolbox
      • CamelAI
      • Firecrawl
      • Hugging Face
      • Ollama
      • Google Gemini
      • Cloudflare Workers AI
      • Jina AI
      • Augment Code
      • Claude Code
      • Kiro
  • Tutorials
    • Build an image search application with OceanBase Database
    • Build an intelligent Q&A assistant with OceanBase Database
    • Build a cultural tourism assistant with OceanBase multi-model integration
    • Build an offline data warehouse and visual dashboard with OceanBase
    • Analyze data in OceanBase Database using Superset
    • Build a WordPress website with OceanBase Database
    • Efficiently retrieve large volumes of news data using full-text indexing
    • Use Spark to process and analyze large volumes of data in OceanBase Database quickly
    • Use direct load to accelerate the import of massive data
    • OceanBase MCP Server
  • Reference
    • OceanBase concepts
      • OceanBase Database architecture
      • Development of OceanBase Database
      • Multi-tenant architecture
        • Multi-tenant architecture overview
        • Compatibility modes
        • Tenant introduction
        • Tenants and resource management
          • Tenant resource management
          • Multi-tenant resource isolation
          • Resource unit balancing
      • Database objects
        • Oracle-compatible mode
          • Introduction
            • Database objects overview
            • Database object types
            • Database object storage
            • Dependencies between database objects
          • Tables
            • Table overview
            • Data type
              • Data type overview
              • Character data types
              • Numeric data types
              • Datetime data types
              • ROWID data types
              • LOB data types
              • Format model
                • Format model overview
                • Number format models
                • Datetime format models
              • Multi-model data types
            • Integrity constraints
            • Table storage
            • Table compression
            • Partitioned table
            • Replicated table
            • Tables with and without a primary key
            • Temporary table
            • Table group overview
          • Indexes
            • Overview of indexes
            • Local and global indexes
            • Unique and non-unique indexes
            • Use indexes
            • Index storage
          • Partitions
            • Partition overview
            • Partitioning keys
            • Partitioning types
            • Partitioned indexes
            • External table partitions
          • Views
            • Views in a database
            • Standard views
              • Standard views
              • View overview
              • OceanBase-specific views
              • Oracle-compatible views
              • View operations and data access
            • Materialized views
          • Other objects
            • Sequences
            • Synonyms
          • System views
            • Dictionary views
            • Performance views
          • Data integrity
            • Data integrity overview
            • Integrity constraint type
              • Integrity constraint types overview
              • NOT NULL constraints
              • UNIQUE KEY constraints
              • PRIMARY KEY constraints
              • FOREIGN KEY constraints
              • CHECK constraints
            • Use of integrity constraints
        • MySQL-compatible mode
          • Introduction
            • Database objects overview
            • Database object types
            • Database object storage
            • Dependencies between database objects
          • Tables
            • Table overview
            • Data type
              • Overview
              • Numeric data types
              • Datetime data types
              • Character data types
              • LOB data types
              • Multi-model data types
              • Spatial data types
              • JSON data types
            • Integrity constraints
            • Table storage
            • Table compression
            • Partitioned table
            • Replicated table
            • Tables with and without a primary key
            • Table groups
          • Indexes
            • Overview of indexes
            • Local and global indexes
            • Unique and non-unique indexes
            • Spatial indexes
            • Full-text index
            • Use indexes
            • Index storage
          • Partitions
            • Partition overview
            • Partitioning keys
            • Partitioning types
            • Partitioned indexes
            • External table partitions
          • Views
            • Views in a database
            • Standard views
              • Overview
              • Overview
              • OceanBase-specific views
              • MySQL-compatible views
              • Oracle-compatible views in MySQL-compatible tenants
              • Oracle-compatible views in the sys tenant
              • View operations and data access
            • Materialized 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
        • Distributed database objects overview
        • Cluster architecture
        • Data partitions and replicas
          • Log stream and replica overview
          • Log streams
          • Partition replica type
            • Log stream replica overview
            • Full-featured replica
            • Read-only replicas
            • Columnstore replica
          • Multi-replica consensus protocols
          • Data balancing
            • Intra-tenant balancing
            • Views and parameters related to data balancing
        • Dynamic scaling
          • Tenant resource scaling
            • Overview of resource scaling within a tenant
            • Horizontal scaling of tenant resources
            • Vertical scaling of tenant resources
            • Cross-zone management of tenant resources
      • Data link
        • Data link overview
        • Database proxy
          • Proxy overview
          • SQL routing
          • Connection management
          • ODP configuration management
          • Logs and monitoring
        • Database connector
          • Database driver overview
          • OBCI
          • OceanBase Connector/J
          • OceanBase Connector/C
        • Cross-data source access through DBLink
          • DBLink in MySQL-compatible mode
          • DBLink in Oracle-compatible mode
      • User interface and query language
        • SQL
          • Introduction
            • SQL overview
            • SQL data access
            • SQL standards
          • SQL statements
            • SQL statement overview
            • DDL
            • Monitor DDL execution progress
            • DML
            • DCL
          • SQL request execution process
          • SQL execution plan
          • Distributed execution plan
            • Distributed execution and parallel query
            • Generate distributed plans
            • Enable and disable parallel query
            • Manage distributed execution plans
            • Perform parameter tuning for PX
        • PL
          • PL concepts
            • Oracle-compatible mode
              • Subprograms
              • Stored procedures
              • Functions
              • Triggers
              • Packages
            • MySQL-compatible mode
              • Subprograms
              • Stored procedures
              • Functions
              • Triggers
          • PL execution mechanism
        • Client programming languages
      • Transaction management
        • Transaction
          • Overview
          • Transaction structure
          • Statement-level atomicity
          • Global Timestamp Service (GTS)
          • Transaction control
            • Transaction control overview
            • Active transactions
            • Savepoint
            • Transaction control statements
              • MySQL transaction control
              • Oracle transaction control
          • Redo logs
          • Local transactions
          • Distributed transaction
            • Distributed transaction overview
            • Two-phase commit
          • XA transactions
        • Transaction concurrency and consistency
          • Data concurrency and consistency overview
          • Multi-version read consistency
          • Concurrency control
            • Concurrency control overview
            • Lock mechanism
            • Lock Wait Mgr
          • Transaction isolation level
            • Transaction isolation level overview
            • Transaction isolation levels in Oracle-compatible mode
            • Transaction isolation levels in MySQL-compatible mode
          • Weak-consistency read
      • Storage architecture
        • Storage architecture overview
        • Data storage
          • Data storage overview
          • MemTable
          • SSTable
          • Columnar storage
          • Compression and encoding
        • Compaction
          • Overview of dumping and merging
          • Dump (Mini and minor compactions)
          • Merge (Major compaction)
        • Multi-level caching in shared-nothing architecture
        • Multi-level caching in shared storage
        • Query processing
        • Data integrity
          • Detect silent data corruption
      • Data reliability and high availability
        • High availability architecture
          • High availability architecture overview
          • ODP high availability
          • Leader election in distributed systems
          • Multi-replica log synchronization
          • Paxos protocol
          • Automatic handling of node failures
        • Disaster recovery deployment plan
        • Data protection
          • Data protection overview
          • Flashback queries
          • Recycle bin
        • Backup and restore
          • Backup and restore overview
          • Backup directory structure
          • Backup architecture
          • Restore process
        • Arbitration-based high availability solution
        • Physical Standby Database solution
      • Database security
        • Security mechanism overview
        • Identity 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 file
        • observer thread model
          • Thread introduction
          • Worker threads
          • Background threads
        • Logs
        • Memory management
          • Memory management overview
          • Memory-related parameters
          • Memory-related views
          • Memory-related logs
          • Memory problem diagnosis
        • Plugin mechanism
    • System management
      • Configuration management
        • Configuration management introduction
        • Set parameters
        • Set variables
      • Storage management
        • Minor compaction management
          • Dump management overview
          • Automatically trigger a minor compaction
          • Manually initiate a minor compaction
          • View minor compaction information
          • Modify minor compaction parameters
        • 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 major compaction information
          • Modify major compaction settings
        • Data compression
          • Overview
          • Data encoding and compression
      • Memory management
        • Memory management overview
        • Memory structure
        • Maximum database memory
        • Manage internal system memory
        • Memory management in a tenant
        • Manage the memory of the plan cache
        • Memleak-based regular memory leak diagnostics mechanism
        • Query memory usage information
        • Common memory problems
      • Process management
        • Overview of OceanBase threads
        • Multi-tenant threads of OceanBase Database
        • View the thread status
        • Background threads of OceanBase Database
        • FAQ about multi-tenant threads
      • Disk management
        • Configure dynamic expansion of disk data files
        • View the disk space used by a tenant or table
    • Database object management
      • Overview
      • MySQL-compatible mode
        • Create and manage databases
          • Create a database
          • View databases
          • Modify a database
          • Drop a database
        • Create and manage tables
          • About tables
          • Create a table
          • Column skip index attribute
          • Define an auto-increment column
          • Define column constraints
          • Query tables
          • Change a table
          • Change the attribute of a table
          • Empty a table
          • Drop a table
          • Lock a table
          • Create and manage external tables
            • About external tables
            • Create an external table
            • Create external table partitions
            • Manage external files
            • Data type mapping
        • Create and manage partitions
          • Partition overview
          • Create a partitioned table
          • Partition splitting
            • Partition splitting overview
            • Manual partition splitting
            • Automatic partition splitting
            • Recommended configurations for automatic partitioning
          • Dynamic partitioning
            • Overview of dynamic partitioning
            • Create a dynamic partitioned table
            • Query a dynamic partitioned table
            • Modify a dynamic partitioned table
            • Dynamic partition management tasks
          • Modify partitioning rules
          • Add a partition
          • Drop a partition
          • Truncate a partition
          • Partition pruning
          • Query data in specified partitions
          • Create indexes on partitioned tables
            • Index overview
            • Local indexes
            • Global indexes
          • Partition exchange
        • Create and manage table groups
          • About table groups
          • 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
          • About indexes
          • 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 standard views
          • Manage materialized views
            • Overview of materialized views
            • Materialized view logs
            • Automatic management of materialized view logs
            • Create a materialized view
            • Refresh a materialized view
            • Rewrite queries based on materialized views
            • Query materialized views
            • Modify the attributes of a materialized view
            • Drop a materialized view
            • Resource isolation for materialized views
        • Create and manage sequences
          • Create a sequence
          • Query sequences
          • Reference a sequence
          • Modify a sequence
          • Drop a sequence
        • Create and manage triggers
          • Trigger 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
        • Create and manage catalogs
          • Catalog overview
          • Create a catalog
          • View a catalog
          • Drop a catalog
        • Custom hotspot cache policy
          • Overview of custom hot data caching strategies
          • Create a table-level hot cache policy
          • Create a partition-level hot cache strategy
          • Modify the table-level hot cache policy
          • Modify the partition-level hot cache policy
          • Guide to managing custom hot cache strategies
      • Oracle-compatible mode
        • Create and manage tables
          • About tables
          • Create a table
          • Column skip index attribute
          • 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
            • About external tables
            • Create an external table
            • Create external table partitions
            • Manage external files
            • Data type mapping
        • Create and manage partitions
          • Partition overview
          • Create a partitioned table
          • Partition splitting
            • Partition splitting overview
            • Manual partition splitting
            • Automatic partition splitting
            • Recommended configurations for automatic partitioning
          • Dynamic partitioning
            • Overview of dynamic partitioning
            • Create a dynamic partitioned table
            • Query a dynamic partitioned table
            • Modify a dynamic partitioned table
            • Dynamic partition management tasks
          • 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
            • Index overview
            • Local indexes
            • Global indexes
          • Partition exchange
        • Create and manage table groups
          • About table groups
          • 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
          • About indexes
          • 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 standard views
          • Manage materialized views
            • Overview of materialized views
            • Materialized view logs
            • Automatic management of materialized view logs
            • Create materialized views
            • Refresh a materialized view
            • Rewrite queries based on materialized views
            • Query materialized views
            • Modify the attributes of a materialized view
            • Drop a materialized view
            • Materialized view resource isolation
        • Manage sequences
        • Manage synonyms
        • Create and manage triggers
          • Trigger 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 directories
        • 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 of object naming conventions
        • 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
      • Introduction to SQL
      • SQL syntax
        • System tenants
          • Overview
          • ALTER SYSTEM
            • ACTIVATE STANDBY
            • ADD REPLICA
            • ADD RESTORE SOURCE
            • ARCHIVELOG
            • ARBITRATION
            • BOOTSTRAP
            • BACKUP KEY
            • BACKUP
            • BACKUP CLUSTER PARAMETERS
            • BALANCE TASK
            • BALANCE JOB
            • CANCEL BACKUP
            • CANCEL CLONE
            • CANCEL DELETE BACKUP
            • CANCEL MIGRATE UNIT
            • CANCEL REPLICA TASK
            • CANCEL RESTORE
            • CANCEL RECOVER TABLE
            • CANCEL TRANSFER PARTITION
            • CLEAR RESTORE SOURCE
            • CREATE LS
            • DELETE BACKUP POLICY
            • DELETE BACKUP ALL
            • DELETE BACKUPSET/ARCHIVELOG_PIECE
            • DELETE OBSOLETE BACKUP
            • LOAD MODULE DATA
            • MAJOR and MINOR
            • MIGRATE REPLICA
            • MIGRATE UNIT
            • MODIFY LS
            • MODIFY PAXOS_REPLICA_NUM
            • MODIFY REPLICA
            • NOARCHIVELOG
            • FLUSH PLAN CACHE
            • FLUSH SEQUENCE CACHE
            • FLUSH SS_LOCAL_CACHE
            • FLUSH ss_micro_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
            • SET LOG_ARCHIVE_DEST
            • SET LOG_ARCHIVE_DEST_STATE
            • THROTTLE
            • TRANSFER PARTITION
            • WASH MEMORY FRAGMENTATION
            • 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-compatible mode)
          • Basic elements
            • Data types
              • Overview
              • Numeric types
                • Overview
                • Integer data types
                • Fixed-point data 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
                • STRING 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
                • Update partial JSON data
                • Semi-structured encoding
              • Spatial data types
                • Overview
                • SRS
                • Create a spatial column
                • Create a spatial index
                • Spatial data formats
              • Roaring bitmap types
                • Overview
                • Create an efficient compressed bitmap column
              • Array data types
                • Overview of array element types
                • Create an array column
              • Map data types
                • Overview of the map data type
                • ## Create map columns
            • Expressions
              • Overview
              • Expression syntax
              • Data type conversion rules
            • Character set and collation
              • Overview
              • Character set
              • Collations
              • Database-level character set and collation
              • Table-level character set and collation
              • Column-level character sets and collations
              • Character expression character sets and collations
              • 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
          • 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
                • KEYVALUE
                • LCASE
                • LEFT
                • LENGTH
                • LOCATE
                • LOWER
                • LPAD
                • LTRIM
                • MAKE_SET
                • MD5_CONCAT_WS
                • MID
                • OCT
                • OCTET_LENGTH
                • ORD
                • POSITION
                • QUOTE
                • REGEXP
                • REGEXP_INSTR
                • REGEXP_LIKE
                • REGEXP_REPLACE
                • REGEXP_SUBSTR
                • REPEAT
                • REPLACE
                • REVERSE
                • RIGHT
                • RLIKE
                • RPAD
                • RTRIM
                • SPACE
                • SPLIT_PART
                • STRCMP
                • SUBSTR
                • SUBSTRING
                • SUBSTRING_INDEX
                • TRIM
                • UCASE
                • UNHEX
                • UPPER
                • URL_DECODE
                • URL_ENCODE
                • WEIGHT_STRING
                • TO_BASE64
                • FROM_BASE64
                • SOUNDEX
              • Conversion functions
                • CAST
                • CONVERT
                • DECODE_TRACE_ID
                • SCN_TO_TIMESTAMP
                • TIMESTAMP_TO_SCN
                • TO_CHAR(character)
                • TO_CHAR(number)
                • TO_CHAR(datetime)
              • 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
              • ARG_MAX
              • ARG_MIN
              • BIT_AND
              • BIT_OR
              • BIT_XOR
              • COUNT
              • GROUP_CONCAT
              • GROUPING
              • MAX
              • MIN
              • STD
              • STDDEV
              • STDDEV_POP
              • STDDEV_SAMP
              • SUM
              • VAR_POP
              • VAR_SAMP
              • VARIANCE
              • WINDOW_FUNNEL
            • 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
              • LAST_INSERT_ID Behavior Description
              • ICU_VERSION
              • OB_TRANSACTION_ID
              • ROW_COUNT
              • SCHEMA
              • SESSION_USER
              • SYSTEM_USER
              • USER
              • VERSION
              • OB_VERSION
            • JSON functions
              • Overview
              • Functions for creating JSON text
                • JSON_ARRAY
                • JSON_OBJECT
                • JSON_QUOTE
              • Functions for searching JSON text
                • JSON_CONTAINS
                • JSON_CONTAINS_PATH
                • JSON_EXTRACT
                • JSON_KEYS
                • JSON_OVERLAPS
                • JSON_SEARCH
                • JSON_VALUE
                • MEMBER OF
              • Functions for modifying JSON text
                • 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
              • Functions for returning JSON text properties
                • 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
            • Bitmap functions
              • Overview
              • RoaringBitmap constructor
              • Bitmap cardinality functions
              • Roaring bitmap operation functions
              • Roaring bitmap judgment functions
              • Roaring bitmap output functions
              • Roaring bitmap aggregate functions
            • Array functions
              • Overview
              • Array constructor functions
              • Array judgment functions
              • Array output functions
              • Array operation functions
            • Text processing functions
              • TOKENIZE
            • Auditing functions
              • Overview
              • AUDIT_LOG_FILTER_REMOVE_FILTER
              • AUDIT_LOG_FILTER_REMOVE_USER
              • AUDIT_LOG_FILTER_SET_FILTER
              • AUDIT_LOG_FILTER_SET_USER
            • Map functions
              • Overview of map functions
              • Mapping constructor
              • Mapping comparison functions and operators
              • Mapping Operation Functions
            • 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
              • MATCH AGAINST
              • NVL
              • UUID_TO_BIN
              • SLEEP
              • UUID
              • UUID_SHORT
              • VALUES
          • Queries and subqueries
            • Overview
            • Subqueries
            • Joins
            • Full-text search
          • SQL statements
            • General syntax
            • Common table expressions
            • ALTER COMPILE
            • ALTER DATABASE
            • ALTER LOCATION
            • ALTER MATERIALIZED VIEW
            • ALTER MATERIALIZED VIEW LOG
            • ALTER EXTERNAL TABLE
            • ALTER OUTLINE
            • ALTER SENSITIVE RULE
            • ALTER SEQUENCE
            • ALTER/CHANGE/MODIFY EXTERNAL_STORAGE_DEST
            • ALTER SYSTEM FLUSH SEQUENCE CACHE
            • MAJOR and MINOR
            • STORAGE_CACHE_POLICY_EXECUTOR
            • ALTER TABLE
            • ALTER TABLEGROUP
            • ALTER TABLESPACE
            • ALTER USER
            • ALTER VIEW
            • ALTER INSTANCE ROTATE INNODB MASTER KEY
            • ANALYZE
            • CACHE INDEX
            • CREATE CONCURRENT_LIMITING_RULE
            • CREATE DATABASE LINK
            • CREATE DATABASE
            • CREATE EXTERNAL CATALOG
            • CREATE EXTERNAL TABLE
            • CREATE INDEX
            • CREATE LOCATION
            • CREATE MATERIALIZED VIEW
            • CREATE MATERIALIZED VIEW LOG
            • CREATE OUTLINE
            • CREATE FORMAT OUTLINE
            • CREATE RESTORE POINT
            • CREATE ROLE
            • CREATE SEQUENCE
            • CREATE SENSITIVE RULE
            • CREATE TABLE
            • CREATE TABLEGROUP
            • CREATE TABLESPACE
            • CREATE USER
            • CREATE VIEW
            • CHECKSUM TABLE
            • CREATE EVENT
            • DEALLOCATE PREPARE
            • DROP DATABASE LINK
            • DELETE
            • DESCRIBE
            • DROP CATALOG
            • DROP CONCURRENT_LIMITING_RULE
            • DROP DATABASE
            • DROP INDEX
            • DROP LOCATION
            • DROP MATERIALIZED VIEW
            • DROP MATERIALIZED VIEW LOG
            • DROP OUTLINE
            • DROP ROLE
            • DROP SENSITIVE RULE
            • DROP TABLE
            • DROP TABLEGROUP
            • DROP TABLESPACE
            • DROP SEQUENCE
            • DROP USER
            • DROP VIEW
            • DROP RESTORE POINT
            • EXECUTE
            • EXPLAIN
            • FLASHBACK
            • FLUSH TABLE
            • GRANT
            • HELP
            • INSERT
            • KILL
            • LOAD DATA
            • LOAD INDEX INTO CACHE
            • LOCK TABLES
            • OPTIMIZE
            • PREPARE
            • PURGE
            • PURGE RECYCLEBIN
            • RENAME USER
            • RENAME TABLE
            • REPLACE
            • REPAIR TABLE
            • REMOVE
            • REVOKE
            • SAVEPOINT
            • SCHEMA
            • SELECT INTO
            • SELECT
              • SELECT
              • JOIN clause
              • WINDOW clause
              • UNION clause
            • SET DEFAULT ROLE
            • SET
            • SET CATALOG
            • SET CHARSET
            • SET NAMES
            • SET PASSWORD
            • SET ROLE
            • SET TRANSACTION
            • SHOW
            • SUBMIT JOB
            • SHOW JOB STATUS
            • CANCEL JOB
            • TRANSACTION
            • TRUNCATE TABLE
            • UNLOCK TABLES
            • UPDATE
            • USE
            • 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
          • Pseudocolumns
            • Overview
            • PARTITIONID pseudo-column
            • Pseudo columns of sequences
        • User tenants (Oracle-compatible mode)
          • Pseudo columns
            • Overview
            • Hierarchical query pseudocolumns
            • Sequence pseudocolumns
            • ORA_ROWSCN pseudocolumn
            • ROWNUM pseudocolumn
            • ROWID pseudocolumn
            • PARTITIONID pseudo-column
          • 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
                • LOB types
              • 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 column
                • SDO_GEOMETRY attribute access
                • Create a spatial index
            • 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
              • Remarks about SQL statements
              • Comments on schema and non-schema objects
              • Hints
                • Overview
                • Use query block name and QB_NAME hint to control query optimization
                • Hint list
                  • Global hints
                    • Optimizer Stats Hint
                    • Transform Hint under the Global Hints category
                    • Other hints in the GLOBAL hint category
                  • Optimized hints
                    • Access path hints
                    • Join order hints in the Optimized Hint category
                    • Join operation hints in the Optimized Hint category
                    • Subquery hints in the Optimized Hint category
                    • Group By Hint in the Optimized Hint category
                    • DISTINCT hint
                    • Set Hint under Optimized Hint
                    • Distributed DML hints in the Optimized Hint category
                  • Transform hints
                    • Stmt Transform Hint
                    • Cost-based transform hints
                    • Heuristics transform hints
                    • Other hints under the TRANSFORM hint type
                  • Outline-related 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
              • Refer to 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_SINGLE_BYTE
                • TO_TIMESTAMP
                • TO_TIMESTAMP_TZ
                • TO_YMINTERVAL
                • UNISTR
                • NLS_CHARSET_ID
              • 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
                • Constructor functions
                • Spatial query functions
                • 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
              • WINDOW_FUNNEL
              • WMSYS.WM_CONCAT/WM_CONCAT
              • GROUP_ID
              • GROUPING_ID
            • Analysis functions
              • Overview
              • AVG
              • ARG_MIN
              • ARG_MAX
              • 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
            • Information functions
              • OB_TRANSACTION_ID
          • 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 LOCATION
              • ALTER MATERIALIZED VIEW
              • ALTER MATERIALIZED VIEW LOG
              • ALTER OUTLINE
              • ALTER PROFILE
              • ALTER ROLE
              • ALTER SENSITIVE RULE
              • ALTER SEQUENCE
              • ALTER SESSION
              • ALTER SYSTEM FLUSH CACHE
              • ALTER/CHANGE/MODIFY EXTERNAL_STORAGE_DEST
              • ALTER SYSTEM FLUSH SEQUENCE CACHE
              • ALTER SYSTEM SET PARAMETER
              • ALTER TABLE
              • ALTER TABLEGROUP
              • ALTER TABLESPACE
              • ALTER USER
              • ALTER VIEW COMPILE
              • COMMENT
              • CREATE CONTEXT
              • CREATE CONCURRENT_LIMITING_RULE
              • CREATE DIRECTORY
              • CREATE DATABASE LINK
              • CREATE EXTERNAL TABLE
              • CREATE INDEX
              • CREATE KEYSTORE
              • CREATE LOCATION
              • CREATE MATERIALIZED VIEW
              • CREATE MATERIALIZED VIEW LOG
              • CREATE OUTLINE
              • CREATE PROFILE
              • CREATE FORMAT OUTLINE
              • CREATE ROLE
              • CREATE SEQUENCE
              • CREATE SENSITIVE RULE
              • CREATE SYNONYM
              • CREATE TABLE
              • CREATE TABLEGROUP
              • CREATE TABLESPACE
              • CREATE USER
              • CREATE VIEW
              • DROP CONTEXT
              • DROP CONCURRENT_LIMITING_RULE
              • DROP DATABASE LINK
              • DROP DIRECTORY
              • DROP INDEX
              • DROP LOCATION
              • DROP MATERIALIZED VIEW
              • DROP MATERIALIZED VIEW LOG
              • DROP OUTLINE
              • DROP PROFILE
              • DROP ROLE
              • DROP SENSITIVE RULE
              • 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
                • JOIN clause
                • APPLY clause
              • UPDATE
            • DCL
              • ANALYZE
              • ALTER SYSTEM KILL SESSION
              • AUDIT
              • COMMIT
              • FLASHBACK TABLE BEFORE DROP
              • GRANT
              • KILL
              • LOAD DATA
              • LOCK TABLE
              • REMOVE
              • REVOKE
              • ROLLBACK
              • SAVEPOINT
              • SELECT INTO
              • 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 statements
          • DDL statements
          • Multi-table join specifications
          • Table scan
          • Transactions
          • Cache
          • How to use hints
          • Others
        • SQL statement examples
          • Implicit data type conversion
          • Join tables
          • Read with eventual consistency
          • Pagination
      • Reserved keywords (MySQL-compatible mode)
      • Reserved keywords (Oracle-compatible mode)
      • Data type conversion behavior in MySQL-compatible tenants in strict mode
    • PL reference
      • What is PL
        • Overview
        • Main features of PL
        • PL architecture
      • PL reference (MySQL-compatible mode)
        • Syntax of PL stored programs
        • PL stored procedures
          • Overview
          • Variables in stored programs
          • Stored procedures
          • Stored objects and privilege management
          • Stored functions
          • External storage function
          • Triggers
          • EVENT
          • Limitations on stored programs
          • SQL Transpiler
          • PL asynchronous commit optimization
        • 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
          • Scope of procedures
          • Diagnostic areas
          • Exception handling and OUT/INOUT parameters
          • Limitations on exception handling
        • PL system packages
          • Overview
          • DBMS_AI_SERVICE
            • Overview of DBMS_AI_SERVICE
            • CREATE_AI_MODEL
            • DROP_AI_MODEL
            • CREATE_AI_MODEL_ENDPOINT
            • ALTER_AI_MODEL_ENDPOINT
            • DROP_AI_MODEL_ENDPOINT
          • DBMS_HYBRID_SEARCH
            • Overview of DBMS_HYBRID_SEARCH
            • SEARCH
            • GET_SQL
          • DBMS_MVIEW
            • Overview
            • PURGE_LOG
            • REFRESH
          • DBMS_MVIEW_STATS
            • Overview
            • PURGE_REFRESH_STATS
            • SET_MVREF_STATS_PARAMS
            • SET_SYSTEM_DEFAULT
          • DBMS_PARTITION
            • DBMS_PARTITION overview
            • MANAGE_DYNAMIC_PARTITION
          • DBMS_RESOURCE_MANAGER
            • Overview
            • CREATE_CONSUMER_GROUP
            • CREATE_PLAN
            • CREATE_PLAN_DIRECTIVE
            • DELETE_CONSUMER_GROUP
            • DELETE_PLAN
            • DELETE_PLAN_DIRECTIVE
            • System Packages
            • 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
            • CANCEL_GATHER_STATS
          • DBMS_TRUSTED_CERTIFICATE_MANAGER
            • Overview
            • ADD_TRUSTED_CERTIFICATE
            • DELETE_TRUSTED_CERTIFICATE
            • UPDATE_TRUSTED_CERTIFICATE
          • DBMS_UDR
            • Overview
            • CREATE_RULE
            • DISABLE_RULE
            • ENABLE_RULE
            • REMOVE_RULE
          • DBMS_VECTOR
            • Overview of DBMS_VECTOR
            • Overview of DBMS_VECTOR
            • REFRESH_INDEX
            • REBUILD_INDEX
            • INDEX_VECTOR_MEMORY_ESTIMATE
            • INDEX_VECTOR_MEMORY_ADVISOR
          • 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_XPROFILE
            • Overview of DBMS_XPROFILE
            • DISPLAY_PROFILE
          • DBMS_BALANCE
            • Overview
            • SET_BALANCE_WEIGHT
            • CLEAR_BALANCE_WEIGHT
            • TRIGGER_PARTITION_BALANCE
            • SET_TABLEGROUP_BALANCE_WEIGHT
            • CLEAR_TABLEGROUP_BALANCE_WEIGHT
          • 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_EXTERNAL_TABLE
            • Overview
            • AUTO_REFRESH_EXTERNAL_TABLE
          • DBMS_JAVA
            • Overview of DBMS_JAVA
            • LOADJAVA
            • DROPJAVA
          • DBMS_PYTHON
            • Overview of DBMS_PYTHON
            • DROPPYTHON
            • LOADPYTHON
          • DBMS_DATA_DICT
            • DBMS_DATA_DICT
        • Reserved and non-reserved PL keywords
      • PL reference (Oracle-compatible mode)
        • PL language basics
          • Character sets
          • Lexical elements
          • Declaration
          • Reference identifiers
          • Scope and visibility of identifiers
          • 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 cursor
            • Cursor variables
            • Use the FOR loop to traverse a cursor
            • Modify and drop a cursor
          • Transaction processing and control
          • Autonomous transactions
            • Overview of autonomous transactions
            • Control autonomous transactions
            • Autonomous triggers
            • Call autonomous functions from SQL statements
          • FORALL bulk execution
        • 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 function
            • Applications
          • SQL Transpiler
          • User-defined functions
            • Overview
            • Interfaces of 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 asynchronous commit optimization
        • PL triggers
          • Overview
          • Create a DML trigger
          • Modify and drop triggers
          • 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
          • PL environment definitions in the STANDARD package
        • PL exception handling
          • Overview
          • Compile-time warnings
          • Exception types
          • Exception handling
        • 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-compatible 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
            • SET_BALANCE_WEIGHT
            • CLEAR_BALANCE_WEIGHT
            • TRIGGER_PARTITION_BALANCE
          • DBMS_CRYPTO
            • Overview
            • ENCRYPT
            • DECRYPT
            • HASH
          • DBMS_DEBUG
            • Overview
            • ATTACH_SESSION
            • CONTINUE
            • DEBUG_ON
            • DEBUG_OFF
            • DETACH_SESSION
            • DELETE_BREAKPOINT
            • DISABLE_BREAKPOINT
            • 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
            • REMOVE
            • RUN
            • SUBMIT
            • USER_EXPORT
            • WHAT
          • DBMS_LOB
            • Overview of DBMS_LOB
            • APPEND
            • CLOSE
            • COPY
            • CREATETEMPORARY
            • ERASE
            • FREETEMPORARY
            • GETLENGTH
            • ISOPEN
            • INSTR
            • ISTEMPORARY
            • OPEN
            • READ
            • SUBSTR
            • TRIM
            • WRITE
            • WRITEAPPEND
          • DBMS_LOCK
            • DBMS_LOCK overview
            • ALLOCATE_UNIQUE
            • ALLOCATE_UNIQUE_AUTONOMOUS
            • REQUEST
            • SLEEP
            • RELEASE
          • DBMS_METADATA
            • Overview of DBMS_METADATA
            • GET_DDL
            • GET_TABLE_INDEX_DDL
          • DBMS_MVIEW
            • Overview
            • PURGE_LOG
            • REFRESH
          • 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_MVIEW_STAT
            • Overview
            • PURGE_REFRESH_STATS
            • SET_MVREF_STATS_PARAMS
            • SET_SYSTEM_DEFAULT
          • DBMS_OUTPUT
            • Overview
            • DISABLE
            • ENABLE
            • GET_LINE
            • GET_LINES
            • NEW_LINE
            • PUT
            • PUT_LINE
          • DBMS_PLAN_CACHE
            • Overview
            • PURGE
          • DBMS_PLSQL_CODE_COVERAGE
            • Overview of DBMS_PLSQL_CODE_COVERAGE
            • START_COVERAGE
            • STOP_COVERAGE
            • CREATE_COVERAGE_TABLES
          • DBMS_PARTITION
            • Overview of DBMS_PARTITION
            • MANAGE_DYNAMIC_PARTITION
          • 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_JOB_CLASS
            • CREATE_PROGRAM
            • DEFINE_PROGRAM_ARGUMENT
            • DISABLE
            • DROP_JOB
            • DROP_JOB_CLASS
            • DROP_PROGRAM
            • ENABLE
            • GENERATE_JOB_NAME
            • PURGE_LOG
            • RUN_JOB
            • SET_ATTRIBUTE
            • SET_JOB_ARGUMENT_VALUE
            • STOP_JOB
            • DISABLE
            • ENABLE
          • DBMS_SESSION
            • Overview of DBMS_SESSION
            • CLEAR_ALL_CONTEXT
            • CLEAR_CONTEXT
            • CLEAR_IDENTIFIER
            • RESET_PACKAGE
            • SET_CONTEXT
            • SET_IDENTIFIER
            • SESSION_IS_ROLE_ENABLED
            • IS_ROLE_ENABLED
          • DBMS_SQL
            • Overview
            • BIND_VARIABLE
            • CLOSE_CURSOR
            • COLUMN_VALUE
            • DEFINE_COLUMN
            • DEFINE_ARRAY
            • DESCRIBE_COLUMNS
            • 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
            • CANCEL_GATHER_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_XPROFILE
            • Overview of DBMS_XPROFILE
            • DISPLAY_PROFILE
          • DBMS_EXTERNAL_TABLE
            • Overview
            • AUTO_REFRESH_EXTERNAL_TABLE
          • 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 of UTL_FILE
            • FCLOSE
            • FCOPY
            • FCLOSE_ALL
            • FFLUSH
            • FOPEN
            • FOPEN_NCHAR
            • FGETPOS
            • FGETATTR
            • FREMOVE
            • FRENAME
            • FSEEK
            • NEW_LINE
            • NEW_LINE_NCHAR
            • GET_RAW
            • GET_LINE
            • GET_LINE_NCHAR
            • PUT
            • PUT_RAW
            • PUT_LINE
            • PUT_NCHAR
            • PUT_LINE_NCHAR
            • PUTF
            • PUTF_NCHAR
            • IS_OPEN
          • 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
          • UTL_HTTP
            • Overview of UTL_HTTP
            • BEGIN_REQUEST
            • END_REQUEST
            • GET_RESPONSE
            • END_RESPONSE
            • READ_LINE
            • READ_RAW
            • READ_TEXT
            • WRITE_LINE
            • WRITE_RAW
            • WRITE_TEXT
            • SET_TRANSFER_TIMEOUT
            • GET_TRANSFER_TIMEOUT
          • ANYDATA TYPE
            • Overview of the ANYDATA type
            • BEGINCREATE static procedure
            • ENDCREATE member procedure
            • GET* member functions
            • GETTYPE member function
            • GETTYPENAME member function
            • PIECEWISE member procedure
            • SET* member procedures
          • XMLType
            • Overview
            • CREATEXML
            • GETCLOBVAL
            • GETSTRINGVAL
            • TRANSFORM
            • XMLTYPE
            • EXISTSNODE
            • EXTRACT
        • Reserved PL keywords
    • System views
      • Overview
      • Overview of system views
      • View changes between V3.x and V4.x
      • SYS 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.role_table_grants
          • information_schema.role_column_grants
          • information_schema.role_routine_grants
          • information_schema.ROUTINES
          • information_schema.SCHEMA_PRIVILEGES
          • information_schema.SCHEMATA
          • information_schema.SESSION_STATUS
          • information_schema.SESSION_VARIABLES
          • 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.columns_priv
          • mysql.db
          • mysql.default_roles
          • mysql.help_category
          • mysql.help_keyword
          • mysql.help_relation
          • mysql.help_topic
          • mysql.proc
          • mysql.procs_priv
          • mysql.role_edges
          • mysql.time_zone
          • mysql.time_zone_name
          • mysql.time_zone_transition
          • mysql.time_zone_transition_type
          • mysql.user
          • oceanbase.ALL_OB_EXTERNAL_TABLE_FILES
          • oceanbase.CDB_CKPT_HISTORY
          • oceanbase.CBA_SCHEDULER_RUNNING_JOBS
          • oceanbase.CDB_OB_DATABASE_PRIVILEGE
          • oceanbase.CDB_IND_COLUMNS
          • oceanbase.CDB_IND_PARTITIONS
          • oceanbase.CDB_IND_SUBPARTITIONS
          • CDB_INDEX_USAGE
          • oceanbase.CDB_INDEXES
          • CDB_MVIEW_LOGS
          • oceanbase.CDB_MVIEW_RUNNING_JOBS
          • CDB_MVIEWS
          • CDB_MVREF_CHANGE_STATS
          • CDB_MVREF_RUN_STATS
          • CDB_MVREF_STATS
          • CDB_MVREF_STATS_PARAMS
          • CDB_MVREF_STATS_SYS_DEFAULTS
          • CDB_MVREF_STMT_STATS
          • oceanbase.CDB_OB_ACCESS_POINT
          • oceanbase.CDB_OB_AI_MODEL_ENDPOINTS
          • oceanbase.CDB_OB_AI_MODELS
          • oceanbase.CDB_OB_LS_ARB_REPLICA_TASKS
          • oceanbase.CDB_OB_ARCHIVE_DEST
          • oceanbase.CDB_OB_ARCHIVELOG
          • oceanbase.CDB_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.CDB_OB_ARCHIVELOG_SUMMARY
          • oceanbase.CDB_OB_AUTO_INCREMENT
          • CDB_OB_AUX_STATISTICS
          • oceanbase.CDB_OB_BACKUP_DELETE_JOB_HISTORY
          • oceanbase.CDB_OB_BACKUP_DELETE_JOBS
          • oceanbase.CDB_OB_BACKUP_DELETE_POLICY
          • oceanbase.CDB_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.CDB_OB_BACKUP_DELETE_TASKS
          • oceanbase.CDB_OB_BACKUP_JOB_HISTORY
          • oceanbase.CDB_OB_BACKUP_JOBS
          • oceanbase.CDB_OB_BACKUP_PARAMETER
          • oceanbase.CDB_OB_BACKUP_SET_FILES
          • oceanbase.CDB_OB_BACKUP_STORAGE_INFO
          • oceanbase.CDB_OB_BACKUP_STORAGE_INFO_HISTORY
          • oceanbase.CDB_OB_BACKUP_TASK_HISTORY
          • oceanbase.CDB_OB_BACKUP_TASKS
          • oceanbase.CDB_OB_BALANCE_JOB_HISTORY
          • oceanbase.CDB_OB_BALANCE_JOBS
          • oceanbase.CDB_OB_BALANCE_TASK_HISTORY
          • oceanbase.CDB_OB_BALANCE_TASKS
          • oceanbase.CDB_OB_COLUMN_CHECKSUM_ERROR_INFO
          • oceanbase.CDB_OB_CCL_RULES
          • oceanbase.CDB_OB_CS_REPLICA_STATS
          • oceanbase.CDB_OB_DATA_DICTIONARY_IN_LOG
          • oceanbase.CDB_OB_DATABASES
          • oceanbase.CDB_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.CDB_OB_DYNAMIC_PARTITION_TABLES
          • oceanbase.CDB_OB_EXTERNAL_TABLE_FILES
          • oceanbase.CDB_OB_FREEZE_INFO
          • oceanbase.CDB_OB_IMPORT_TABLE_JOB_HISTORY
          • oceanbase.CDB_OB_IMPORT_TABLE_JOBS
          • oceanbase.CDB_OB_IMPORT_TABLE_TASK_HISTORY
          • oceanbase.CDB_OB_IMPORT_TABLE_TASKS
          • oceanbase.CDB_OB_KV_TTL_TASK_HISTORY
          • oceanbase.CDB_OB_KV_TTL_TASKS
          • oceanbase.CDB_OB_LOG_RESTORE_SOURCE
          • oceanbase.CDB_OB_LS
          • oceanbase.CDB_OB_LS_ARB_REPLICA_TASK_HISTORY
          • oceanbase.CDB_OB_LS_HISTORY
          • oceanbase.CDB_OB_LS_LOCATIONS
          • oceanbase.CDB_OB_LS_LOG_ARCHIVE_PROGRESS
          • oceanbase.CDB_OB_LS_REPLICA_TASKS
          • oceanbase.CDB_OB_LS_REPLICA_TASK_HISTORY
          • oceanbase.CDB_OB_MAJOR_COMPACTION
          • oceanbase.CDB_OB_OBJECT_BALANCE_WEIGHT
          • oceanbase.CDB_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.CDB_OB_RECOVER_TABLE_JOBS
          • oceanbase.CDB_OB_SERVICES
          • oceanbase.CDB_OB_RESTORE_HISTORY
          • oceanbase.CDB_OB_RESTORE_PROGRESS
          • oceanbase.CDB_OB_RSRC_DIRECTIVES
          • oceanbase.CDB_OB_SENSITIVE_COLUMNS
          • oceanbase.CDB_OB_SENSITIVE_RULE_PLAINACCESS_USERS
          • oceanbase.CDB_OB_SENSITIVE_RULES
          • oceanbase.CDB_OB_SERVER_SPACE_USAGE
          • oceanbase.CDB_OB_SPACE_USAGE
          • oceanbase.CDB_OB_SS_SPACE_USAGE
          • oceanbase.CDB_OB_SYS_VARIABLES
          • oceanbase.CDB_OB_STORAGE_IO_USAGE
          • oceanbase.CDB_OB_SYNC_STANDBY_DEST
          • oceanbase.CDB_OB_TABLE_LOCATIONS
          • oceanbase.CDB_OB_TABLEGROUP_PARTITIONS
          • oceanbase.CDB_OB_TABLEGROUP_SUBPARTITIONS
          • oceanbase.CDB_OB_TABLEGROUP_TABLES
          • oceanbase.CDB_OB_TABLEGROUPS
          • oceanbase.CDB_OB_TABLET_CHECKSUM_ERROR_INFO
          • oceanbase.CDB_OB_TABLET_REPLICAS
          • oceanbase.CDB_OB_TABLET_TO_LS
          • oceanbase.CDB_OB_TABLE_SPACE_USAGE
          • oceanbase.CDB_OB_TEMP_FILES
          • oceanbase.CDB_OB_TENANT_EVENT_HISTORY
          • oceanbase.CDB_OB_TENANT_FLASHBACK_LOG_SCN
          • oceanbase.CDB_OB_TRANSFER_PARTITION_TASKS
          • 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_VECTOR_INDEX_TASKS
          • oceanbase.CDB_OB_VECTOR_INDEX_TASK_HISTORY
          • oceanbase.CDB_OB_ZONE_MAJOR_COMPACTION
          • oceanbase.CDB_OBJECTS
          • oceanbase.CDB_PART_INDEXES
          • oceanbase.CDB_PART_KEY_COLUMNS
          • oceanbase.CDB_PART_TABLES
          • oceanbase.CDB_SCHEDULER_JOB_RUN_DETAILS
          • oceanbase.CDB_SUBPART_KEY_COLUMNS
          • oceanbase.CDB_SUBPARTITION_TEMPLATES
          • oceanbase.CDB_TAB_COL_STATISTICS
          • oceanbase.CDB_TAB_COLS
          • oceanbase.CDB_TAB_COLS_V$
          • oceanbase.CDB_TAB_PARTITIONS
          • oceanbase.CDB_TAB_SUBPARTITIONS
          • oceanbase.CDB_TABLES
          • oceanbase.CDB_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.CDB_WR_CONTROL
          • oceanbase.CDB_WR_EVENT_NAME
          • oceanbase.CDB_WR_SNAPSHOT
          • oceanbase.CDB_WR_SQLSTAT
          • oceanbase.CDB_WR_SQLTEXT
          • oceanbase.CDB_WR_STATNAME
          • oceanbase.CDB_WR_SYS_TIME_MODEL
          • oceanbase.CDB_WR_SYSSTAT
          • oceanbase.CDB_WR_SYSTEM_EVENT
          • oceanbase.CDB_OB_EXTERNAL_RESOURCES
          • oceanbase.DBA_DB_LINKS
          • oceanbase.DBA_IND_PARTITIONS
          • oceanbase.DBA_IND_STATISTICS
          • oceanbase.DBA_IND_SUBPARTITIONS
          • oceanbase.DBA_INDEX_USAGE
          • oceanbase.DBA_MVIEW_DEPS
          • oceanbase.DBA_MVIEW_LOGS
          • oceanbase.DBA_MVIEW_RUNNING_JOBS
          • oceanbase.DBA_MVIEWS
          • oceanbase.DBA_MVREF_CHANGE_STATS
          • oceanbase.DBA_MVREF_RUN_STATS
          • oceanbase.DBA_MVREF_STATS
          • oceanbase.DBA_MVREF_STATS_PARAMS
          • oceanbase.DBA_MVREF_STATS_SYS_DEFAULTS
          • oceanbase.DBA_MVREF_STMT_STATS
          • oceanbase.DBA_OB_ACCESS_POINT
          • oceanbase.DBA_OB_AI_MODEL_ENDPOINTS
          • oceanbase.DBA_OB_AI_MODELS
          • oceanbase.DBA_OB_ARBITRATION_SERVICE
          • oceanbase.DBA_OB_ARCHIVE_DEST
          • oceanbase.DBA_OB_ARCHIVELOG
          • oceanbase.DBA_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.DBA_OB_ARCHIVELOG_SUMMARY
          • oceanbase.DBA_OB_AUTO_INCREMENT
          • DBA_OB_AUX_STATISTICS
          • oceanbase.DBA_OB_BACKUP_DELETE_JOB_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_JOBS
          • oceanbase.DBA_OB_BACKUP_DELETE_POLICY
          • oceanbase.DBA_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_TASKS
          • oceanbase.DBA_OB_BACKUP_JOB_HISTORY
          • oceanbase.DBA_OB_BACKUP_JOBS
          • oceanbase.DBA_OB_BACKUP_PARAMETER
          • oceanbase.DBA_OB_BACKUP_SET_FILES
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO_HISTORY
          • 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_CLONE_HISTORY
          • oceanbase.DBA_OB_CLONE_PROGRESS
          • oceanbase.DBA_OB_CLUSTER_EVENT_HISTORY
          • oceanbase.DBA_OB_CONCURRENT_LIMIT_SQL
          • oceanbase.DBA_OB_CCL_RULES
          • oceanbase.DBA_OB_CS_REPLICA_STATS
          • oceanbase.DBA_OB_DATA_DICTIONARY_IN_LOG
          • oceanbase.DBA_OB_DATABASE_PRIVILEGE
          • oceanbase.DBA_OB_DATABASES
          • oceanbase.DBA_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.DBA_OB_DYNAMIC_PARTITION_TABLES
          • oceanbase.DBA_OB_EXTERNAL_TABLE_FILES
          • oceanbase.DBA_OB_EXTERNAL_RESOURCES
          • DBA_OB_FORMAT_OUTLINES
          • 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_TASK_HISTORY
          • 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_LOG_ARCHIVE_PROGRESS
          • oceanbase.DBA_OB_LS_REPLICA_TASKS
          • oceanbase.DBA_OB_LS_REPLICA_TASK_HISTORY
          • oceanbase.DBA_OB_MAJOR_COMPACTION
          • oceanbase.DBA_OB_OUTLINE_CONCURRENT_HISTORY
          • oceanbase.DBA_OB_OUTLINES
          • oceanbase.DBA_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.DBA_OB_SERVICES
          • oceanbase.DBA_OB_RECOVER_TABLE_JOBS
          • oceanbase.DBA_OB_RESOURCE_POOLS
          • oceanbase.DBA_OB_RESTORE_HISTORY
          • oceanbase.DBA_OB_RESTORE_PROGRESS
          • oceanbase.DBA_OB_ROOTSERVICE_EVENT_HISTORY
          • oceanbase.DBA_OB_RSRC_IO_DIRECTIVES
          • oceanbase.DBA_OB_RSRC_DIRECTIVES
          • oceanbase.DBA_OB_SEQUENCE_OBJECTS
          • oceanbase.DBA_OB_SERVER_EVENT_HISTORY
          • oceanbase.DBA_OB_SERVER_JOBS
          • oceanbase.DBA_SCHEDULER_RUNNING_JOBS
          • oceanbase.DBA_OB_SERVERS
          • oceanbase.DBA_OB_SS_SPACE_USAGE
          • oceanbase.DBA_OB_STORAGE_IO_USAGE
          • oceanbase.DBA_OB_SYNC_STANDBY_DEST
          • oceanbase.DBA_OB_SYS_VARIABLES
          • oceanbase.DBA_OB_TABLE_LOCATIONS
          • oceanbase.DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY
          • oceanbase.DBA_OB_TABLE_STAT_STALE_INFO
          • oceanbase.DBA_OB_TABLEGROUP_PARTITIONS
          • oceanbase.DBA_OB_TABLEGROUP_SUBPARTITIONS
          • oceanbase.DBA_OB_TABLEGROUP_TABLES
          • oceanbase.DBA_OB_TABLEGROUPS
          • oceanbase.DBA_OB_TABLET_REPLICAS
          • oceanbase.DBA_OB_TABLET_TO_LS
          • oceanbase.DBA_OB_TASK_OPT_STAT_GATHER_HISTORY
          • oceanbase.DBA_OB_TEMP_FILES
          • oceanbase.DBA_OB_TENANT_EVENT_HISTORY
          • oceanbase.DBA_OB_TENANT_FLASHBACK_LOG_SCN
          • oceanbase.DBA_OB_TENANT_JOBS
          • oceanbase.DBA_OB_TENANTS
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASKS
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASK_HISTORY
          • oceanbase.DBA_OB_TRANSFER_TASK_HISTORY
          • oceanbase.DBA_OB_TRANSFER_TASKS
          • DBA_OB_TRUSTED_ROOT_CERTIFICATE
          • oceanbase.DBA_OB_UNIT_CONFIGS
          • oceanbase.DBA_OB_UNIT_JOBS
          • oceanbase.DBA_OB_UNITS
          • oceanbase.DBA_OB_USER_DEFINED_RULES
          • oceanbase.DBA_OB_USERS
          • oceanbase.DBA_OB_VECTOR_INDEX_TASKS
          • oceanbase.DBA_OB_VECTOR_INDEX_TASK_HISTORY
          • oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION
          • oceanbase.DBA_OB_ZONES
          • oceanbase.DBA_OB_ZONE_STORAGE
          • oceanbase.DBA_OBJECTS
          • oceanbase.DBA_PART_COL_STATISTICS
          • oceanbase.DBA_PART_HISTOGRAMS
          • oceanbase.DBA_PART_INDEXES
          • oceanbase.DBA_PART_KEY_COLUMNS
          • oceanbase.DBA_PART_TABLES
          • oceanbase.DBA_RECYCLEBIN
          • oceanbase.DBA_RSRC_CONSUMER_GROUPS
          • oceanbase.DBA_RSRC_GROUP_MAPPINGS
          • oceanbase.DBA_RSRC_PLAN_DIRECTIVES
          • oceanbase.DBA_RSRC_PLANS
          • oceanbase.DBA_SCHEDULER_JOBS
          • oceanbase.DBA_SCHEDULER_JOB_RUN_DETAILS
          • oceanbase.DBA_SCHEDULER_WINDOWS
          • oceanbase.DBA_SEQUENCES
          • oceanbase.DBA_SQL_MANAGEMENT_CONFIG
          • oceanbase.DBA_SQL_PLAN_BASELINES
          • oceanbase.DBA_SUBPART_COL_STATISTICS
          • oceanbase.DBA_SUBPART_HISTOGRAMS
          • oceanbase.DBA_SUBPART_KEY_COLUMNS
          • oceanbase.DBA_SUBPARTITION_TEMPLATES
          • oceanbase.DBA_TAB_COL_STATISTICS
          • oceanbase.DBA_TAB_HISTOGRAMS
          • oceanbase.DBA_TAB_MODIFICATIONS
          • oceanbase.DBA_TAB_PARTITIONS
          • oceanbase.DBA_TAB_STATISTICS
          • oceanbase.DBA_TAB_STATS_HISTORY
          • oceanbase.DBA_TAB_SUBPARTITIONS
          • oceanbase.DBA_TABLES
          • oceanbase.DBA_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.DBA_WR_CONTROL
          • oceanbase.DBA_WR_EVENT_NAME
          • oceanbase.DBA_WR_SNAPSHOT
          • oceanbase.DBA_WR_SQLSTAT
          • oceanbase.DBA_WR_SQLTEXT
          • oceanbase.DBA_WR_STATNAME
          • oceanbase.DBA_WR_SYS_TIME_MODEL
          • oceanbase.DBA_WR_SYSSTAT
          • oceanbase.DBA_WR_SYSTEM_EVENT
        • Performance views
          • GV$ACTIVE_SESSION_HISTORY
          • GV$DML_STATS
          • GV$LATCH
          • GV$OB_ACTIVE_SESSION_HISTORY
          • GV$OB_COMPACTION_DIAGNOSE_INFO
          • GV$OB_COMPACTION_PROGRESS
          • GV$OB_COMPACTION_SUGGESTIONS
          • GV$OB_CGROUP_CONFIG
          • GV$OB_DTL_INTERM_RESULT_MONITOR
          • GV$OB_FLT_TRACE_CONFIG
          • GV$OB_FUNCTION_IO_STAT
          • GV$OB_GROUP_IO_STAT
          • GV$OB_HMS_CLIENT_POOL_STAT
          • GV$OB_HNSW_INDEX_INFO
          • GV$OB_IO_BENCHMARK
          • GV$OB_IO_CALIBRATION_STATUS
          • GV$OB_IVF_INDEX_INFO
          • GV$OB_KVCACHE
          • GV$OB_KV_GROUP_COMMIT_STATUS
          • GV$OB_LOG_STAT
          • GV$OB_LOG_TRANSPORT_DEST_STAT
          • GV$OB_LS_SNAPSHOTS
          • GV$OB_MEMORY
          • GV$OB_MEMSTORE
          • GV$OB_MEMSTORE_INFO
          • GV$OB_MERGE_INFO
          • GV$OB_NIC_INFO
          • GV$OB_RPC_INCOMING
          • GV$OB_RPC_OUTGOING
          • GV$OB_PARAMETERS
          • GV$OB_PLAN_CACHE_PLAN_EXPLAIN
          • GV$OB_PLAN_CACHE_PLAN_STAT
          • GV$OB_PLAN_CACHE_STAT
          • GV$OB_PROCESSLIST
          • GV$OB_PS_ITEM_INFO
          • GV$OB_PS_STAT
          • GV$OB_PX_P2P_DATAHUB
          • GV$OB_PX_TARGET_MONITOR
          • GV$OB_PX_WORKER_STAT
          • GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • GV$OB_RES_MGR_SYSSTAT
          • GV$OB_SERVER_SCHEMA_INFO
          • GV$OB_SERVERS
          • GV$OB_SERVER_STORAGE
          • GV$OB_SESS_TIME_MODEL
          • GV$OB_SESSION
          • GV$OB_SHARED_STORAGE_QUOTA
          • GV$OB_SQL_AUDIT
          • GV$OB_SQL_CCL_STATUS
          • GV$SQL_JOIN_FILTER
          • GV$OB_SQL_PLAN
          • GV$SQL_PLAN_MONITOR
          • GV$OB_SQL_WORKAREA_MEMORY_INFO
          • GV$OB_SQLSTAT
          • GV$OB_SSTABLES
          • GV$OB_SS_LOCAL_CACHE
          • GV$OB_SS_OBJECT_TYPE_IO_STAT
          • GV$OB_STORAGE_CACHE_TASKS
          • GV$OB_SYS_TIME_MODEL
          • GV$OB_TABLET_COMPACTION_HISTORY
          • GV$OB_TABLET_COMPACTION_PROGRESS
          • GV$OB_TABLET_LOCAL_CACHE
          • GV$OB_TENANT_MEMORY
          • GV$OB_TENANT_RESOURCE_LIMIT
          • GV$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • GV$OB_TENANT_RUNTIME_INFO
          • GV$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_TRANSACTION_SCHEDULERS
          • GV$OB_UNITS
          • GV$OB_VECTOR_MEMORY
          • GV$SESSION_EVENT
          • GV$SESSION_LONGOPS
          • GV$SESSION_WAIT
          • GV$SESSION_WAIT_HISTORY
          • GV$SESSTAT
          • GV$SQL_WORKAREA
          • GV$SQL_WORKAREA_ACTIVE
          • GV$SQL_WORKAREA_HISTOGRAM
          • GV$SYSSTAT
          • GV$SYSTEM_EVENT
          • gv$tenant
          • gv$tenant_memstore_allocator_info
          • GV$OB_ARBITRATION_MEMBER_INFO
          • GV$OB_ARBITRATION_SERVICE_STATUS
          • GV$OB_KV_CLIENT_INFO
          • GV$OB_LOCKS
          • GV$OB_OPT_STAT_GATHER_MONITOR
          • GV$OB_THREAD
          • GV$OB_PL_CACHE_OBJECT
          • GV$UNIT
          • V$OB_PL_CACHE_OBJECT
          • V$ACTIVE_SESSION_HISTORY
          • V$DML_STATS
          • V$ENCRYPTED_TABLESPACES
          • V$EVENT_NAME
          • V$LATCH
          • 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$OB_CGROUP_CONFIG
          • V$OB_DTL_INTERM_RESULT_MONITOR
          • V$OB_DYNAMIC_PARTITION_TABLES
          • V$OB_ENCRYPTED_TABLES
          • V$OB_FUNCTION_IO_STAT
          • V$OB_GROUP_IO_STAT
          • V$OB_HMS_CLIENT_POOL_STAT
          • V$OB_IO_BENCHMARK
          • V$OB_HNSW_INDEX_INFO
          • V$OB_IO_CALIBRATION_STATUS
          • V$OB_IVF_INDEX_INFO
          • V$OB_KVCACHE
          • V$OB_KV_CLIENT_INFO
          • V$OB_KV_GROUP_COMMIT_STATUS
          • V$OB_LOG_STAT
          • V$OB_LOG_TRANSPORT_DEST_STAT
          • V$OB_LS_LOG_RESTORE_STATUS
          • V$OB_LS_REPLICA_TASK_PLAN
          • V$OB_LS_SNAPSHOTS
          • V$OB_MEMORY
          • V$OB_MEMSTORE
          • V$OB_MEMSTORE_INFO
          • V$OB_MERGE_INFO
          • V$OB_NIC_INFO
          • V$OB_RPC_INCOMING
          • V$OB_RPC_OUTGOING
          • V$OB_PARAMETERS
          • V$OB_PLAN_CACHE_PLAN_EXPLAIN
          • V$OB_PLAN_CACHE_PLAN_STAT
          • V$OB_PLAN_CACHE_STAT
          • V$OB_PROCESSLIST
          • V$OB_PS_ITEM_INFO
          • V$OB_PS_STAT
          • V$OB_PX_P2P_DATAHUB
          • V$OB_PX_TARGET_MONITOR
          • V$OB_PX_WORKER_STAT
          • V$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • V$OB_RES_MGR_SYSSTAT
          • V$OB_SERVER_SCHEMA_INFO
          • V$OB_SERVERS
          • V$OB_SERVER_STORAGE
          • V$OB_SESS_TIME_MODEL
          • V$OB_SESSION
          • V$SESSION_EVENT
          • V$OB_SHARED_STORAGE_QUOTA
          • V$OB_SQL_AUDIT
          • V$OB_SQL_CCL_STATUS
          • V$SQL_JOIN_FILTER
          • V$OB_SQL_PLAN
          • V$OB_SQL_WORKAREA_MEMORY_INFO
          • V$OB_SQLSTAT
          • V$OB_SS_SSTABLES
          • V$OB_SSTABLES
          • V$OB_SS_LOCAL_CACHE
          • V$OB_SS_OBJECT_TYPE_IO_STAT
          • V$OB_STORAGE_CACHE_TASKS
          • V$OB_SYS_TIME_MODEL
          • V$OB_TABLET_COMPACTION_HISTORY
          • V$OB_TABLET_COMPACTION_PROGRESS
          • V$OB_TABLET_LOCAL_CACHE
          • V$OB_TENANT_MEMORY
          • V$OB_TENANT_RESOURCE_LIMIT
          • V$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • V$OB_TENANT_RUNTIME_INFO
          • V$OB_TIMESTAMP_SERVICE
          • V$OB_TRANSACTION_PARTICIPANTS
          • V$OB_TRANSACTION_SCHEDULERS
          • V$OB_UNITS
          • V$RESTORE_POINT
          • V$RSRC_PLAN
          • V$SESSION_LONGOPS
          • V$SESSION_WAIT
          • V$SESSION_WAIT_HISTORY
          • V$SESSTAT
          • V$SQL_MONITOR_STATNAME
          • V$SQL_PLAN_MONITOR
          • V$SQL_WORKAREA
          • V$SQL_WORKAREA_ACTIVE
          • V$SQL_WORKAREA_HISTOGRAM
          • V$STATNAME
          • V$SYSSTAT
          • V$SYSTEM_EVENT
          • V$OB_ARBITRATION_MEMBER_INFO
          • V$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_LOCKS
          • V$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_THREAD
          • V$OB_VECTOR_MEMORY
          • v$tenant_memstore_allocator_info
          • V$UNIT
      • 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.role_table_grants
          • information_schema.role_column_grants
          • information_schema.role_routine_grants
          • 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
          • mysql.procs_priv
          • mysql.role_edges
          • mysql.time_zone
          • mysql.time_zone_name
          • mysql.time_zone_transition
          • mysql.time_zone_transition_type
          • mysql.user
          • oceanbase.ALL_OB_EXTERNAL_TABLE_FILES
          • oceanbase.DBA_DB_LINKS
          • oceanbase.DBA_IND_PARTITIONS
          • oceanbase.DBA_IND_STATISTICS
          • oceanbase.DBA_IND_SUBPARTITIONS
          • oceanbase.DBA_INDEX_USAGE
          • oceanbase.DBA_MVIEW_DEPS
          • oceanbase.DBA_MVIEW_LOGS
          • oceanbase.DBA_MVIEW_RUNNING_JOBS
          • oceanbase.DBA_MVIEWS
          • oceanbase.DBA_MVREF_CHANGE_STATS
          • oceanbase.DBA_MVREF_RUN_STATS
          • oceanbase.DBA_MVREF_STATS
          • oceanbase.DBA_MVREF_STATS_PARAMS
          • oceanbase.DBA_MVREF_STATS_SYS_DEFAULTS
          • oceanbase.DBA_MVREF_STMT_STATS
          • oceanbase.DBA_OB_ACCESS_POINT
          • oceanbase.DBA_OB_AI_MODEL_ENDPOINTS
          • oceanbase.DBA_OB_AI_MODELS
          • oceanbase.DBA_OB_ARCHIVE_DEST
          • oceanbase.DBA_OB_ARCHIVELOG
          • oceanbase.DBA_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.DBA_OB_ARCHIVELOG_SUMMARY
          • oceanbase.DBA_OB_AUTO_INCREMENT
          • DBA_OB_AUX_STATISTICS
          • oceanbase.DBA_OB_BACKUP_DELETE_JOB_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_JOBS
          • oceanbase.DBA_OB_BACKUP_DELETE_POLICY
          • oceanbase.DBA_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_TASKS
          • oceanbase.DBA_OB_BACKUP_JOB_HISTORY
          • oceanbase.DBA_OB_BACKUP_JOBS
          • oceanbase.DBA_OB_BACKUP_PARAMETER
          • oceanbase.DBA_OB_BACKUP_SET_FILES
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO_HISTORY
          • 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_CCL_RULES
          • oceanbase.DBA_OB_CS_REPLICA_STATS
          • oceanbase.DBA_OB_DATA_DICTIONARY_IN_LOG
          • oceanbase.DBA_OB_DATABASE_PRIVILEGE
          • oceanbase.DBA_OB_DATABASES
          • oceanbase.DBA_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.DBA_OB_DYNAMIC_PARTITION_TABLES
          • oceanbase.DBA_OB_EXTERNAL_TABLE_FILES
          • oceanbase.DBA_OB_EXTERNAL_RESOURCES
          • DBA_OB_FORMAT_OUTLINES
          • 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_TASK_HISTORY
          • 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_LOG_ARCHIVE_PROGRESS
          • oceanbase.DBA_OB_LS_REPLICA_TASKS
          • oceanbase.DBA_OB_LS_REPLICA_TASK_HISTORY
          • oceanbase.DBA_OB_MAJOR_COMPACTION
          • oceanbase.DBA_OB_OBJECT_BALANCE_WEIGHT
          • oceanbase.DBA_OB_OUTLINE_CONCURRENT_HISTORY
          • oceanbase.DBA_OB_OUTLINES
          • oceanbase.DBA_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.DBA_OB_RECOVER_TABLE_JOBS
          • oceanbase.DBA_OB_SERVICES
          • oceanbase.DBA_OB_RESTORE_HISTORY
          • oceanbase.DBA_OB_RESTORE_PROGRESS
          • oceanbase.DBA_OB_RSRC_IO_DIRECTIVES
          • oceanbase.DBA_OB_RSRC_DIRECTIVES
          • oceanbase.DBA_OB_SENSITIVE_COLUMNS
          • oceanbase.DBA_OB_SENSITIVE_RULE_PLAINACCESS_USERS
          • oceanbase.DBA_OB_SENSITIVE_RULES
          • oceanbase.DBA_OB_SEQUENCE_OBJECTS
          • oceanbase.DBA_OB_SS_SPACE_USAGE
          • oceanbase.DBA_OB_STORAGE_IO_USAGE
          • oceanbase.DBA_OB_SYNC_STANDBY_DEST
          • oceanbase.DBA_OB_SYS_VARIABLES
          • oceanbase.DBA_OB_TABLE_LOCATIONS
          • oceanbase.DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY
          • oceanbase.DBA_OB_TABLE_STAT_STALE_INFO
          • oceanbase.DBA_OB_TABLEGROUP_PARTITIONS
          • oceanbase.DBA_OB_TABLEGROUP_SUBPARTITIONS
          • oceanbase.DBA_OB_TABLEGROUP_TABLES
          • oceanbase.DBA_OB_TABLEGROUPS
          • oceanbase.DBA_OB_TABLET_REPLICAS
          • oceanbase.DBA_OB_TABLE_SPACE_USAGE
          • oceanbase.DBA_OB_TABLET_TO_LS
          • oceanbase.DBA_OB_TASK_OPT_STAT_GATHER_HISTORY
          • oceanbase.DBA_OB_TENANT_EVENT_HISTORY
          • oceanbase.DBA_OB_TENANTS
          • oceanbase.DBA_OB_TEMP_FILES
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASKS
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASK_HISTORY
          • oceanbase.DBA_OB_TRANSFER_TASK_HISTORY
          • oceanbase.DBA_OB_TRANSFER_TASKS
          • oceanbase.DBA_OB_USER_DEFINED_RULES
          • oceanbase.DBA_OB_USERS
          • oceanbase.DBA_OB_VECTOR_INDEX_TASKS
          • oceanbase.DBA_OB_VECTOR_INDEX_TASK_HISTORY
          • oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION
          • oceanbase.DBA_OBJECTS
          • oceanbase.DBA_PART_COL_STATISTICS
          • oceanbase.DBA_PART_HISTOGRAMS
          • oceanbase.DBA_PART_INDEXES
          • oceanbase.DBA_PART_KEY_COLUMNS
          • oceanbase.DBA_PART_TABLES
          • oceanbase.DBA_RECYCLEBIN
          • oceanbase.DBA_RSRC_CONSUMER_GROUPS
          • oceanbase.DBA_RSRC_GROUP_MAPPINGS
          • oceanbase.DBA_RSRC_PLAN_DIRECTIVES
          • oceanbase.DBA_RSRC_PLANS
          • oceanbase.DBA_SCHEDULER_JOBS
          • oceanbase.DBA_SCHEDULER_RUNNING_JOBS
          • oceanbase.DBA_SCHEDULER_JOB_RUN_DETAILS
          • oceanbase.DBA_SCHEDULER_WINDOWS
          • oceanbase.DBA_SEQUENCES
          • oceanbase.DBA_SQL_MANAGEMENT_CONFIG
          • oceanbase.DBA_SQL_PLAN_BASELINES
          • oceanbase.DBA_SUBPART_COL_STATISTICS
          • oceanbase.DBA_SUBPART_HISTOGRAMS
          • oceanbase.DBA_SUBPART_KEY_COLUMNS
          • oceanbase.DBA_SUBPARTITION_TEMPLATES
          • oceanbase.DBA_TAB_COL_STATISTICS
          • oceanbase.DBA_TAB_HISTOGRAMS
          • oceanbase.DBA_TAB_MODIFICATIONS
          • oceanbase.DBA_TAB_PARTITIONS
          • oceanbase.DBA_TAB_STATISTICS
          • oceanbase.DBA_TAB_STATS_HISTORY
          • oceanbase.DBA_TAB_SUBPARTITIONS
          • oceanbase.DBA_TABLES
          • oceanbase.DBA_OB_TENANT_FLASHBACK_LOG_SCN
          • oceanbase.DBA_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.DBA_WR_CONTROL
          • oceanbase.DBA_WR_EVENT_NAME
          • oceanbase.DBA_WR_SNAPSHOT
          • oceanbase.DBA_WR_SQLSTAT
          • oceanbase.DBA_WR_SQLTEXT
          • oceanbase.DBA_WR_STATNAME
          • oceanbase.DBA_WR_SYS_TIME_MODEL
          • oceanbase.DBA_WR_SYSSTAT
          • oceanbase.DBA_WR_SYSTEM_EVENT
        • Performance views
          • GV$ACTIVE_SESSION_HISTORY
          • GV$DML_STATS
          • GV$LATCH
          • GV$OB_ACTIVE_SESSION_HISTORY
          • GV$OB_COMPACTION_DIAGNOSE_INFO
          • GV$OB_COMPACTION_PROGRESS
          • GV$OB_COMPACTION_SUGGESTIONS
          • GV$OB_CGROUP_CONFIG
          • GV$OB_DTL_INTERM_RESULT_MONITOR
          • GV$OB_FLT_TRACE_CONFIG
          • GV$OB_FUNCTION_IO_STAT
          • GV$OB_GROUP_IO_STAT
          • GV$OB_HMS_CLIENT_POOL_STAT
          • GV$OB_HNWS_INDEX_INFO
          • GV$OB_IVF_INDEX_INFO
          • GV$OB_KVCACHE
          • GV$OB_KV_CLIENT_INFO
          • GV$OB_KV_GROUP_COMMIT_STATUS
          • GV$OB_LOG_STAT
          • GV$OB_LOG_TRANSPORT_DEST_STAT
          • GV$OB_LS_SNAPSHOTS
          • GV$OB_MEMORY
          • GV$OB_MEMSTORE
          • GV$OB_MEMSTORE_INFO
          • GV$OB_MERGE_INFO
          • GV$OB_NIC_INFO
          • GV$OB_RPC_INCOMING
          • GV$OB_RPC_OUTGOING
          • GV$OB_PARAMETERS
          • GV$OB_PLAN_CACHE_PLAN_EXPLAIN
          • GV$OB_PLAN_CACHE_PLAN_STAT
          • GV$OB_PLAN_CACHE_STAT
          • GV$OB_PROCESSLIST
          • GV$OB_PS_ITEM_INFO
          • GV$OB_PS_STAT
          • GV$OB_PX_P2P_DATAHUB
          • GV$OB_PX_TARGET_MONITOR
          • GV$OB_PX_WORKER_STAT
          • GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • GV$OB_RES_MGR_SYSSTAT
          • GV$OB_SERVER_SCHEMA_INFO
          • GV$OB_SESS_TIME_MODEL
          • GV$OB_SESSION
          • GV$OB_SHARED_STORAGE_QUOTA
          • GV$OB_SQL_AUDIT
          • GV$OB_SQL_CCL_STATUS
          • GV$SQL_JOIN_FILTER
          • GV$OB_SQL_PLAN
          • GV$OB_SQL_WORKAREA_MEMORY_INFO
          • GV$OB_SQLSTAT
          • GV$OB_SSTABLES
          • GV$OB_SS_LOCAL_CACHE
          • GV$OB_SS_OBJECT_TYPE_IO_STAT
          • GV$OB_STORAGE_CACHE_TASKS
          • GV$OB_SYS_TIME_MODEL
          • GV$OB_TABLET_COMPACTION_HISTORY
          • GV$OB_TABLET_COMPACTION_PROGRESS
          • GV$OB_TABLET_LOCAL_CACHE
          • GV$OB_TENANT_MEMORY
          • GV$OB_TENANT_RESOURCE_LIMIT
          • GV$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • GV$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_TRANSACTION_SCHEDULERS
          • GV$OB_UNITS
          • GV$OB_VECTOR_MEMORY
          • GV$SESSION_EVENT
          • GV$SESSION_LONGOPS
          • GV$SESSION_WAIT
          • GV$SESSION_WAIT_HISTORY
          • GV$SESSTAT
          • GV$SQL_PLAN_MONITOR
          • GV$SQL_WORKAREA
          • GV$SQL_WORKAREA_ACTIVE
          • GV$SQL_WORKAREA_HISTOGRAM
          • GV$SYSSTAT
          • GV$SYSTEM_EVENT
          • GV$OB_ARBITRATION_MEMBER_INFO
          • GV$OB_ARBITRATION_SERVICE_STATUS
          • GV$OB_LOCKS
          • GV$OB_OPT_STAT_GATHER_MONITOR
          • GV$OB_THREAD
          • GV$OB_PL_CACHE_OBJECT
          • V$OB_PL_CACHE_OBJECT
          • V$ACTIVE_SESSION_HISTORY
          • V$DML_STATS
          • V$EVENT_NAME
          • V$LATCH
          • V$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_CGROUP_CONFIG
          • V$OB_DTL_INTERM_RESULT_MONITOR
          • V$OB_DYNAMIC_PARTITION_TABLES
          • V$OB_ENCRYPTED_TABLES
          • V$ENCRYPTED_TABLESPACES
          • V$OB_FUNCTION_IO_STAT
          • V$OB_GROUP_IO_STAT
          • V$OB_HMS_CLIENT_POOL_STAT
          • V$OB_HNWS_INDEX_INFO
          • V$OB_IVF_INDEX_INFO
          • V$OB_KVCACHE
          • V$OB_KV_CLIENT_INFO
          • V$OB_KV_GROUP_COMMIT_STATUS
          • V$OB_LOG_STAT
          • V$OB_LOG_TRANSPORT_DEST_STAT
          • V$OB_LS_LOG_RESTORE_STATUS
          • V$OB_LS_REPLICA_TASK_PLAN
          • V$OB_LS_SNAPSHOTS
          • V$OB_MEMORY
          • V$OB_MEMSTORE
          • V$OB_MEMSTORE_INFO
          • V$OB_MERGE_INFO
          • V$OB_NIC_INFO
          • V$OB_RPC_INCOMING
          • V$OB_RPC_OUTGOING
          • V$OB_PARAMETERS
          • V$OB_PLAN_CACHE_PLAN_EXPLAIN
          • V$OB_PLAN_CACHE_PLAN_STAT
          • V$OB_PLAN_CACHE_STAT
          • V$OB_PROCESSLIST
          • V$OB_PS_ITEM_INFO
          • V$OB_PS_STAT
          • V$OB_PX_P2P_DATAHUB
          • V$OB_PX_TARGET_MONITOR
          • V$OB_PX_WORKER_STAT
          • V$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • V$OB_RES_MGR_SYSSTAT
          • V$RSRC_PLAN
          • V$OB_SERVER_SCHEMA_INFO
          • V$OB_SESS_TIME_MODEL
          • V$OB_SESSION
          • V$SESSION_EVENT
          • V$OB_SHARED_STORAGE_QUOTA
          • V$OB_SQL_AUDIT
          • V$OB_SQL_CCL_STATUS
          • V$SQL_JOIN_FILTER
          • V$OB_SQL_PLAN
          • V$OB_SQL_WORKAREA_MEMORY_INFO
          • V$OB_SQLSTAT
          • V$OB_SS_SSTABLES
          • V$OB_SSTABLES
          • V$OB_SS_LOCAL_CACHE
          • V$OB_SS_OBJECT_TYPE_IO_STAT
          • V$OB_STORAGE_CACHE_TASKS
          • V$OB_SYS_TIME_MODEL
          • V$OB_TABLET_COMPACTION_HISTORY
          • V$OB_TABLET_COMPACTION_PROGRESS
          • V$OB_TABLET_LOCAL_CACHE
          • V$OB_TENANT_MEMORY
          • V$OB_TENANT_RESOURCE_LIMIT
          • V$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • V$OB_TIMESTAMP_SERVICE
          • V$OB_TRANSACTION_PARTICIPANTS
          • V$OB_TRANSACTION_SCHEDULERS
          • V$OB_UNITS
          • V$OB_VECTOR_MEMORY
          • V$RESTORE_POINT
          • V$SESSION_LONGOPS
          • V$SESSION_WAIT
          • V$SESSION_WAIT_HISTORY
          • V$SESSTAT
          • V$SQL_MONITOR_STATNAME
          • V$SQL_PLAN_MONITOR
          • V$SQL_WORKAREA
          • V$SQL_WORKAREA_ACTIVE
          • V$SQL_WORKAREA_HISTOGRAM
          • V$STATNAME
          • V$SYSSTAT
          • V$SYSTEM_EVENT
          • V$OB_ARBITRATION_MEMBER_INFO
          • V$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_LOCKS
          • V$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_THREAD
      • Oracle tenant views
        • Dictionary views
          • ALL_ALL_TABLES
          • ALL_ARGUMENTS
          • ALL_COL_COMMENTS
          • ALL_COL_PRIVS
          • ALL_COLL_TYPES
          • ALL_CONS_COLUMNS
          • ALL_CONSTRAINTS
          • ALL_DB_LINKS
          • ALL_DEF_AUDIT_OPTS
          • ALL_DEPENDENCIES
          • ALL_DIRECTORIES
          • ALL_ERRORS
          • ALL_IND_COLUMNS
          • ALL_IND_EXPRESSIONS
          • ALL_IND_PARTITIONS
          • ALL_IND_STATISTICS
          • ALL_IND_SUBPARTITIONS
          • ALL_INDEXES
          • ALL_METHOD_PARAMS
          • ALL_MVIEW_LOGS
          • ALL_MVIEWS
          • ALL_OB_EXTERNAL_TABLE_FILES
          • ALL_OBJECTS
          • ALL_OB_SOURCE
          • ALL_PART_COL_STATISTICS
          • ALL_PART_HISTOGRAMS
          • ALL_PART_INDEXES
          • ALL_PLSQL_TYPES
          • ALL_PLSQL_COLL_TYPES
          • ALL_PLSQL_TYPE_ATTRS
          • ALL_PART_KEY_COLUMNS
          • ALL_PART_TABLES
          • ALL_POLICIES
          • ALL_POLICY_CONTEXTS
          • ALL_POLICY_GROUPS
          • ALL_PROCEDURES
          • ALL_PROFILES
          • ALL_SCHEDULER_JOB_ARGS
          • ALL_SCHEDULER_PROGRAM_ARGS
          • ALL_SCHEDULER_WINDOWS
          • ALL_SEC_RELEVANT_COLS
          • ALL_SEQUENCES
          • ALL_SOURCE
          • ALL_SUBPART_COL_STATISTICS
          • ALL_SUBPART_HISTOGRAMS
          • ALL_SUBPART_KEY_COLUMNS
          • ALL_SUBPARTITION_TEMPLATES
          • ALL_SYNONYMS
          • ALL_TAB_COL_STATISTICS
          • ALL_TAB_COLS
          • ALL_TAB_COLUMNS
          • ALL_TAB_COMMENTS
          • ALL_TAB_HISTOGRAMS
          • ALL_TAB_MODIFICATIONS
          • ALL_TAB_PARTITIONS
          • ALL_TAB_PRIVS
          • ALL_TAB_STATISTICS
          • ALL_TAB_STATS_HISTORY
          • ALL_TAB_SUBPARTITIONS
          • ALL_TABLES
          • ALL_TRIGGER_ORDERING
          • ALL_TRIGGERS
          • ALL_TYPE_ATTRS
          • ALL_TYPE_METHODS
          • ALL_TYPES
          • ALL_USERS
          • ALL_VIEWS
          • AUDIT_ACTIONS
          • DBA_ALL_TABLES
          • DBA_ARGUMENTS
          • DBA_AUDIT_EXISTS
          • DBA_AUDIT_OBJECT
          • DBA_AUDIT_SESSION
          • DBA_AUDIT_STATEMENT
          • DBA_AUDIT_TRAIL
          • DBA_COL_COMMENTS
          • DBA_COL_PRIVS
          • DBA_COLL_TYPES
          • DBA_CONS_COLUMNS
          • DBA_CONSTRAINTS
          • DBA_CONTEXT
          • DBA_DB_LINKS
          • DBA_DEPENDENCIES
          • DBA_DIRECTORIES
          • DBA_ERRORS
          • DBA_IND_COLUMNS
          • DBA_IND_EXPRESSIONS
          • DBA_IND_PARTITIONS
          • DBA_IND_STATISTICS
          • DBA_IND_SUBPARTITIONS
          • DBA_INDEX_USAGE
          • DBA_INDEXES
          • DBA_JOBS
          • DBA_JOBS_RUNNING
          • DBA_METHOD_PARAMS
          • DBA_MVIEW_DEPS
          • DBA_MVIEW_LOGS
          • DBA_MVIEW_RUNNING_JOBS
          • DBA_MVIEWS
          • DBA_MVREF_CHANGE_STATS
          • DBA_MVREF_RUN_STATS
          • DBA_MVREF_STATS
          • DBA_MVREF_STATS_PARAMS
          • DBA_MVREF_STATS_SYS_DEFAULTS
          • DBA_MVREF_STMT_STATS
          • DBA_OB_ACCESS_POINT
          • 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_OB_BACKUP_DELETE_TASKS
          • DBA_OB_BACKUP_JOB_HISTORY
          • DBA_OB_BACKUP_JOBS
          • DBA_OB_BACKUP_PARAMETER
          • DBA_OB_BACKUP_SET_FILES
          • DBA_OB_BACKUP_STORAGE_INFO
          • DBA_OB_BACKUP_STORAGE_INFO_HISTORY
          • DBA_OB_BACKUP_TASK_HISTORY
          • DBA_OB_BACKUP_TASKS
          • DBA_OB_BALANCE_JOB_HISTORY
          • DBA_OB_BALANCE_JOBS
          • DBA_OB_BALANCE_TASK_HISTORY
          • DBA_OB_BALANCE_TASKS
          • DBA_OB_CONCURRENT_LIMIT_SQL
          • DBA_OB_CS_REPLICA_STATS
          • DBA_OB_CCL_RULES
          • DBA_OB_DATA_DICTIONARY_IN_LOG
          • DBA_OB_DATABASE_PRIVILEGE
          • DBA_OB_DATABASES
          • DBA_OB_DEADLOCK_EVENT_HISTORY
          • DBA_OB_DYNAMIC_PARTITION_TABLES
          • DBA_OB_EXTERNAL_TABLE_FILES
          • DBA_OB_FORMAT_OUTLINES
          • DBA_OB_FREEZE_INFO
          • DBA_OB_IMPORT_TABLE_JOB_HISTORY
          • DBA_OB_IMPORT_TABLE_JOBS
          • DBA_OB_IMPORT_TABLE_TASK_HISTORY
          • DBA_OB_IMPORT_TABLE_TASKS
          • DBA_OB_LOG_RESTORE_SOURCE
          • DBA_OB_LS
          • DBA_OB_LS_ARB_REPLICA_TASKS
          • DBA_OB_LS_ARB_REPLICA_TASK_HISTORY
          • DBA_OB_LS_HISTORY
          • DBA_OB_LS_LOCATIONS
          • DBA_OB_LS_LOG_ARCHIVE_PROGRESS
          • DBA_OB_SENSITIVE_COLUMNS
          • DBA_OB_SENSITIVE_RULE_PLAINACCESS_USERS
          • DBA_OB_SENSITIVE_RULES
          • DBA_OB_SERVICES
          • DBA_OB_LS_REPLICA_TASKS
          • DBA_OB_LS_REPLICA_TASK_HISTORY
          • DBA_OB_MAJOR_COMPACTION
          • DBA_OB_OBJECT_BALANCE_WEIGHT
          • DBA_OB_OUTLINE_CONCURRENT_HISTORY
          • DBA_OB_OUTLINES
          • DBA_OB_RECOVER_TABLE_JOB_HISTORY
          • DBA_OB_RECOVER_TABLE_JOBS
          • DBA_OB_RESTORE_HISTORY
          • DBA_OB_RESTORE_PROGRESS
          • DBA_OB_RSRC_IO_DIRECTIVES
          • DBA_OB_RSRC_DIRECTIVES
          • DBA_OB_SPATIAL_COLUMNS
          • oceanbase.DBA_OB_SS_SPACE_USAGE
          • oceanbase.DBA_OB_STORAGE_IO_USAGE
          • DBA_OB_SYNC_STANDBY_DEST
          • DBA_OB_SYS_VARIABLES
          • DBA_OB_SOURCE
          • DBA_OB_TABLE_LOCATIONS
          • DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY
          • DBA_OB_TABLE_STAT_STALE_INFO
          • DBA_OB_TABLEGROUP_PARTITIONS
          • DBA_OB_TABLEGROUP_SUBPARTITIONS
          • DBA_OB_TABLEGROUP_TABLES
          • DBA_OB_TABLEGROUPS
          • DBA_OB_TABLET_REPLICAS
          • DBA_OB_TABLET_TO_LS
          • DBA_OB_TASK_OPT_STAT_GATHER_HISTORY
          • DBA_OB_TENANT_EVENT_HISTORY
          • DBA_OB_TENANT_FLASHBACK_LOG_SCN
          • DBA_OB_TEMP_FILES
          • DBA_OB_TENANTS
          • DBA_OB_TRANSFER_PARTITION_TASKS
          • DBA_PLSQL_TYPES
          • DBA_PLSQL_COLL_TYPES
          • DBA_PLSQL_TYPE_ATTRS
          • DBA_OB_TRANSFER_PARTITION_TASK_HISTORY
          • DBA_OB_TRANSFER_TASK_HISTORY
          • DBA_OB_TRANSFER_TASKS
          • DBA_OB_USER_DEFINED_RULES
          • DBA_OB_ZONE_MAJOR_COMPACTION
          • DBA_OBJ_AUDIT_OPTS
          • DBA_OBJECTS
          • DBA_PART_COL_STATISTICS
          • DBA_PART_HISTOGRAMS
          • DBA_PART_INDEXES
          • DBA_PART_KEY_COLUMNS
          • DBA_PART_TABLES
          • DBA_POLICIES
          • DBA_POLICY_CONTEXTS
          • DBA_POLICY_GROUPS
          • DBA_PROCEDURES
          • DBA_PROFILES
          • DBA_RECYCLEBIN
          • DBA_ROLE_PRIVS
          • DBA_ROLES
          • DBA_RSRC_CONSUMER_GROUPS
          • DBA_RSRC_GROUP_MAPPINGS
          • DBA_RSRC_PLAN_DIRECTIVES
          • DBA_RSRC_PLANS
          • DBA_SCHEDULER_JOB_ARGS
          • DBA_SCHEDULER_JOB_RUN_DETAILS
          • DBA_SCHEDULER_RUNNING_JOBS
          • DBA_SCHEDULER_JOBS
          • DBA_SCHEDULER_PROGRAM
          • DBA_SCHEDULER_PROGRAM_ARGS
          • DBA_SCHEDULER_WINDOWS
          • DBA_SEC_RELEVANT_COLS
          • DBA_SEGMENTS
          • DBA_SEQUENCES
          • DBA_SOURCE
          • DBA_SQL_MANAGEMENT_CONFIG
          • DBA_SQL_PLAN_BASELINES
          • DBA_STMT_AUDIT_OPTS
          • DBA_SUBPART_COL_STATISTICS
          • DBA_SUBPART_HISTOGRAMS
          • DBA_SUBPART_KEY_COLUMNS
          • DBA_SUBPARTITION_TEMPLATES
          • DBA_SYNONYMS
          • DBA_SYS_PRIVS
          • DBA_TAB_COL_STATISTICS
          • DBA_TAB_COLS
          • DBA_TAB_COLUMNS
          • DBA_TAB_COMMENTS
          • DBA_TAB_HISTOGRAMS
          • DBA_TAB_MODIFICATIONS
          • DBA_TAB_PARTITIONS
          • DBA_TAB_PRIVS
          • DBA_TAB_STATISTICS
          • DBA_TAB_STATS_HISTORY
          • DBA_TAB_SUBPARTITIONS
          • DBA_TABLES
          • DBA_TABLESPACES
          • DBA_OB_TABLE_SPACE_USAGE
          • 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_WR_EVENT_NAME
          • DBA_WR_SNAPSHOT
          • DBA_WR_SQLSTAT
          • DBA_WR_SQLTEXT
          • DBA_WR_STATNAME
          • DBA_WR_SYS_TIME_MODEL
          • DBA_WR_SYSSTAT
          • DBA_WR_SYSTEM_EVENT
          • 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
          • STMT_AUDIT_OPTION_MAP
          • 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_COMMENTS
          • USER_COL_PRIVS
          • USER_COLL_TYPES
          • USER_CONS_COLUMNS
          • USER_CONSTRAINTS
          • USER_DB_LINKS
          • USER_DEPENDENCIES
          • USER_ERRORS
          • USER_IND_COLUMNS
          • USER_IND_EXPRESSIONS
          • USER_IND_PARTITIONS
          • USER_IND_STATISTICS
          • USER_IND_SUBPARTITIONS
          • USER_INDEXES
          • USER_PLSQL_TYPES
          • USER_PLSQL_COLL_TYPES
          • USER_PLSQL_TYPE_ATTRS
          • USER_JOBS
          • USER_MVIEW_LOGS
          • USER_MVIEWS
          • USER_MVREF_CHANGE_STATS
          • USER_MVREF_RUN_STATS
          • USER_MVREF_STATS
          • USER_MVREF_STATS_PARAMS
          • USER_MVREF_STATS_SYS_DEFAULTS
          • USER_MVREF_STMT_STATS
          • USER_OBJECTS
          • USER_OB_SOURCE
          • USER_PART_COL_STATISTICS
          • USER_PART_HISTOGRAMS
          • USER_PART_INDEXES
          • USER_PART_KEY_COLUMNS
          • USER_PART_TABLES
          • USER_POLICIES
          • USER_POLICY_CONTEXTS
          • USER_POLICY_GROUPS
          • USER_PROCEDURES
          • USER_PROFILES
          • USER_RECYCLEBIN
          • USER_ROLE_PRIVS
          • USER_SCHEDULER_JOB_ARGS
          • USER_SCHEDULER_PROGRAM_ARGS
          • USER_SEC_RELEVANT_COLS
          • USER_SEGMENTS
          • USER_SEQUENCES
          • USER_SOURCE
          • USER_SUBPART_COL_STATISTICS
          • USER_SUBPART_HISTOGRAMS
          • USER_SUBPART_KEY_COLUMNS
          • USER_SUBPARTITION_TEMPLATES
          • USER_SYNONYMS
          • USER_SYS_PRIVS
          • USER_TAB_COL_STATISTICS
          • USER_TAB_COLS
          • USER_TAB_COLUMNS
          • USER_TAB_COMMENTS
          • USER_TAB_HISTOGRAMS
          • USER_TAB_MODIFICATIONS
          • USER_TAB_PARTITIONS
          • USER_TAB_PRIVS
          • USER_TAB_STATISTICS
          • USER_TAB_STATS_HISTORY
          • USER_TAB_SUBPARTITIONS
          • USER_TABLES
          • USER_TABLESPACES
          • USER_TRIGGER_ORDERING
          • USER_TRIGGERS
          • USER_TYPE_ATTRS
          • USER_TYPE_METHODS
          • USER_TYPES
          • USER_USERS
          • USER_VIEWS
        • Performance views
          • GV$ACTIVE_SESSION_HISTORY
          • GV$DBLINK
          • GV$DML_STATS
          • GV$GLOBAL_TRANSACTION
          • GV$INSTANCE
          • GV$OB_ACTIVE_SESSION_HISTORY
          • GV$OB_ARBITRATION_MEMBER_INFO
          • GV$OB_COMPACTION_DIAGNOSE_INFO
          • GV$OB_COMPACTION_PROGRESS
          • GV$OB_COMPACTION_SUGGESTIONS
          • GV$OB_CGROUP_CONFIG
          • GV$OB_DTL_INTERM_RESULT_MONITOR
          • GV$OB_FLT_TRACE_CONFIG
          • GV$OB_FUNCTION_IO_STAT
          • GV$OB_GLOBAL_TRANSACTION
          • GV$OB_GROUP_IO_STAT
          • GV$OB_HMS_CLIENT_POOL_STAT
          • GV$OB_KVCACHE
          • GV$OB_LOG_STAT
          • GV$OB_LOG_TRANSPORT_DEST_STAT
          • GV$OB_LS_SNAPSHOTS
          • GV$OB_MEMORY
          • GV$OB_MEMSTORE
          • GV$OB_MEMSTORE_INFO
          • GV$OB_NIC_INFO
          • GV$OB_OPT_STAT_GATHER_MONITOR
          • GV$OB_PARAMETERS
          • GV$OB_PLAN_CACHE_PLAN_EXPLAIN
          • GV$OB_PL_CACHE_OBJECT
          • GV$OB_PLAN_CACHE_PLAN_STAT
          • GV$OB_PLAN_CACHE_STAT
          • GV$OB_PROCESSLIST
          • GV$OB_PS_ITEM_INFO
          • GV$OB_PS_STAT
          • GV$OB_PX_P2P_DATAHUB
          • GV$OB_PX_TARGET_MONITOR
          • GV$OB_PX_WORKER_STAT
          • GV$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • GV$OB_RES_MGR_SYSSTAT
          • GV$OB_SERVER_SCHEMA_INFO
          • GV$OB_SESS_TIME_MODEL
          • GV$OB_SESSION
          • GV$OB_SHARED_STORAGE_QUOTA
          • GV$OB_SQL_AUDIT
          • GV$OB_SQL_CCL_STATUS
          • GV$SQL_JOIN_FILTER
          • GV$OB_SQL_PLAN
          • GV$OB_SQL_WORKAREA_MEMORY_INFO
          • GV$OB_SQLSTAT
          • GV$OB_SSTABLES
          • GV$OB_SS_LOCAL_CACHE
          • GV$OB_SYS_TIME_MODEL
          • GV$OB_TABLET_COMPACTION_HISTORY
          • GV$OB_TABLET_COMPACTION_PROGRESS
          • GV$OB_TENANT_MEMORY
          • GV$OB_TENANT_RESOURCE_LIMIT
          • GV$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • GV$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_TRANSACTION_SCHEDULERS
          • GV$OB_UNITS
          • GV$OB_RESULT_CACHE_OBJECTS
          • GV$OPEN_CURSOR
          • GV$SESSION_WAIT
          • GV$SESSION_WAIT_HISTORY
          • GV$SESSTAT
          • GV$SQL_PLAN_MONITOR
          • GV$SQL_WORKAREA
          • GV$SQL_WORKAREA_ACTIVE
          • GV$SQL_WORKAREA_HISTOGRAM
          • GV$SYSSTAT
          • GV$SYSTEM_EVENT
          • GV$OB_ARBITRATION_SERVICE_STATUS
          • GV$OB_LOCKS
          • GV$OB_THREAD
          • V$ACTIVE_SESSION_HISTORY
          • V$DBLINK
          • V$DML_STATS
          • V$OB_ENCRYPTED_TABLES
          • V$ENCRYPTED_TABLESPACES
          • V$EVENT_NAME
          • V$GLOBAL_TRANSACTION
          • V$GLOBALCONTEXT
          • V$INSTANCE
          • V$OB_MEMORY
          • V$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_CGROUP_CONFIG
          • V$OB_DTL_INTERM_RESULT_MONITOR
          • V$OB_DYNAMIC_PARTITION_TABLES
          • V$OB_FUNCTION_IO_STAT
          • V$OB_GLOBAL_TRANSACTION
          • V$OB_GROUP_IO_STAT
          • V$OB_HMS_CLIENT_POOL_STAT
          • V$OB_KVCACHE
          • V$OB_LOG_STAT
          • V$OB_LOG_TRANSPORT_DEST_STAT
          • V$OB_LS_LOG_RESTORE_STATUS
          • V$OB_LS_SNAPSHOTS
          • V$OB_MEMSTORE_INFO
          • V$OB_NIC_INFO
          • V$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_PARAMETERS
          • V$OB_PL_CACHE_OBJECT
          • V$OB_PROCESSLIST
          • V$OB_PX_P2P_DATAHUB
          • V$OB_PX_TARGET_MONITOR
          • V$OB_PX_WORKER_STAT
          • V$OB_QUERY_RESPONSE_TIME_HISTOGRAM
          • V$OB_RES_MGR_SYSSTAT
          • V$OB_RESULT_CACHE_OBJECTS
          • V$OB_SERVER_SCHEMA_INFO
          • V$OB_SESS_TIME_MODEL
          • V$OB_SESSION
          • V$OB_SHARED_STORAGE_QUOTA
          • V$OB_SQL_PLAN
          • V$OB_SQL_WORKAREA_MEMORY_INFO
          • V$OB_SQLSTAT
          • V$OB_SS_LOCAL_CACHE
          • V$OB_SYS_TIME_MODEL
          • V$OB_TABLET_COMPACTION_HISTORY
          • V$OB_TABLET_COMPACTION_PROGRESS
          • V$OB_TENANT_RESOURCE_LIMIT
          • V$OB_TENANT_RESOURCE_LIMIT_DETAIL
          • V$OB_TIMESTAMP_SERVICE
          • V$OB_TRANSACTION_PARTICIPANTS
          • V$OB_TRANSACTION_SCHEDULERS
          • V$OB_UNITS
          • V$OPEN_CURSOR
          • V$OB_PLAN_CACHE_PLAN_EXPLAIN
          • V$OB_PLAN_CACHE_PLAN_STAT
          • V$OB_PLAN_CACHE_STAT
          • V$OB_PS_ITEM_INFO
          • V$OB_PS_STAT
          • V$RSRC_PLAN
          • V$SESSION_WAIT
          • V$SESSION_WAIT_HISTORY
          • V$SESSTAT
          • V$OB_SQL_AUDIT
          • V$OB_SQL_CCL_STATUS
          • V$SQL_JOIN_FILTER
          • V$SQL_MONITOR_STATNAME
          • V$SQL_PLAN_MONITOR
          • V$SQL_WORKAREA
          • V$SQL_WORKAREA_ACTIVE
          • V$SQL_WORKAREA_HISTOGRAM
          • V$OB_SS_SSTABLES
          • V$OB_SSTABLES
          • V$RESTORE_POINT
          • V$STATNAME
          • V$SYSSTAT
          • V$SYSTEM_EVENT
          • V$OB_TENANT_MEMORY
          • V$TIMEZONE_NAMES
          • V$VERSION
          • V$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_LOCKS
          • V$OB_LS_REPLICA_TASK_PLAN
          • V$OB_THREAD
      • Overview of metrics
      • General wait events
    • Parameters and system variables
      • Overview
      • Changes to configuration parameters and system variables in V3.x and V4.x
      • Parameters
        • Overview
        • 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
          • async_ps_cursor_max_count
          • 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_io_isolation_mode
          • 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_logservice
          • 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_rpc_authentication_bypass
          • 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
          • external_table_disk_cache_max_percentage
          • 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
          • logservice_access_point
          • 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
          • ob_event_history_recycle_interval
          • ob_ratelimit_stat_period
          • ob_startup_mode
          • ob_python_home
          • obconfig_url
          • observer_id
          • ob_storage_s3_url_encode_type
          • ob_enable_java_env
          • ob_java_home
          • ob_java_connector_path
          • ob_java_opts
          • ob_enable_utl_http
          • 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
          • sync_io_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
          • syslog_sync_size_threshold
          • system_cpu_quota
          • system_memory
          • system_trace_level
          • tableapi_transport_compress_func
          • 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
          • 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
          • approx_count_distinct_precision
          • audit_log_buffer_size
          • audit_log_compression
          • attach_shared_sstable_thread_score
          • 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
          • auto_split_tablet_size
          • 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_load_mode
          • default_micro_block_format_version
          • default_progressive_merge_num
          • default_skip_index_level
          • default_storage_cache_policy
          • default_table_merge_engine
          • default_table_organization
          • default_table_store_format
          • direct_load_allow_fallback
          • dump_data_dictionary_to_log_interval
          • enable_adaptive_plan_cache
          • enable_auto_split
          • enable_clog_encryption
          • enable_clog_persistence_compress
          • enable_database_sharding_none
          • enable_early_lock_release
          • enable_pl_rich_error_msg
          • enable_gts_standalone
          • enable_kv_group_commit
          • enable_kv_ttl
          • enable_lock_priority
          • enable_manual_storage_cache_policy
          • enable_mlog_auto_maintenance
          • enable_monotonic_weak_read
          • enable_mv_binlog_minimal_mode
          • enable_ls_leader_balance
          • enable_rebalance
          • enable_sql_extension
          • enable_transfer
          • enable_user_defined_rewrite_rules
          • external_kms_info
          • external_table_io_hole_size
          • external_table_io_range_size
          • freeze_trigger_percentage
          • global_index_auto_split_policy
          • ha_high_thread_score
          • ha_low_thread_score
          • ha_mid_thread_score
          • inc_sstable_upload_thread_score
          • io_category_config
          • job_queue_processes
          • json_document_max_depth
          • kv_ttl_duty_duration
          • kv_group_commit_batch_size
          • kv_group_commit_rw_mode
          • kv_hbase_client_scanner_timeout_period
          • kv_ttl_history_recycle_interval
          • load_data_diagnosis_log_compression
          • load_data_diagnosis_log_max_size
          • load_vector_index_on_follower
          • 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
          • mds_compaction_high_thread_score
          • mds_compaction_mid_thread_score
          • mds_minor_compact_trigger
          • merger_check_interval
          • minor_compact_trigger
          • mlog_trim_interval
          • ob_compaction_schedule_interval
          • ob_enable_batched_multi_statement
          • ob_encoding_granularity
          • ob_enable_java_udf
          • ob_enable_python_udf
          • ob_proxy_readonly_transaction_routing_policy
          • ob_query_switch_leader_retry_timeout
          • ob_ssl_invited_common_names
          • ob_vector_memory_limit_percentage
          • open_cursors
          • optimizer_index_cost_adj
          • partition_balance_schedule_interval
          • plsql_code_type
          • plsql_debug
          • plsql_optimize_level
          • plsql_v2_compatibility
          • px_node_policy
          • package_state_sync_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
          • result_cache_max_size
          • result_cache_max_result
          • ob_result_cache_evict_percentage
          • ob_deterministic_udf_cache_max_size
          • rpc_memory_limit_percentage
          • shared_log_retention
          • spill_compression_codec
          • sql_work_area
          • standby_db_fetch_log_rpc_timeout
          • standby_db_preferred_upstream_log_region
          • sts_credential
          • tde_method
          • tenant_sql_login_thread_count
          • tenant_sql_net_thread_count
          • temporary_file_max_disk_size
          • storage_rowsets_size
          • suspend_storage_cache_task
          • ttl_thread_score
          • undo_retention
          • vector_index_memory_saving_mode
          • vector_index_optimize_duty_time
          • 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
          • character_set_client
          • character_set_connection
          • cardinality_estimation_model
          • 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
          • default_password_lifetime
          • default_storage_engine
          • div_precision_increment
          • error_on_overlap_time
          • event_scheduler
          • explicit_defaults_for_timestamp
          • ENABLE_OPTIMIZER_ROWGOAL
          • foreign_key_checks
          • group_concat_max_len
          • identity
          • init_connect
          • innodb_stats_persistent
          • innodb_strict_mode
          • interactive_timeout
          • json_float_full_precision
          • license
          • lc_time_names
          • log_row_value_options
          • long_query_time
          • lower_case_table_names
          • max_allowed_packet
          • max_connections
          • max_sp_recursion_depth
          • max_user_connections
          • mview_refresh_dop
          • 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_compatibility_mode
          • ob_compatibility_control
          • ob_compatibility_version
          • ob_create_table_strict_mode
          • ob_default_lob_inrow_threshold
          • ob_default_replica_num
          • ob_early_lock_release
          • ob_enable_ps_parameter_anonymous_block
          • ob_enable_pl_async_commit
          • ob_enable_aggregation_pushdown
          • ob_enable_blk_nestedloop_join
          • ob_enable_hash_group_by
          • ob_enable_index_direct_select
          • ob_enable_jit
          • ob_enable_pl_cache
          • ob_enable_plan_cache
          • ob_enable_rich_error_msg
          • 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_sql_audit_percentage
          • ob_sql_work_area_percentage
          • ob_table_access_policy
          • 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
          • ob_security_version
          • 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
          • performance_schema
          • plugin_dir
          • plsql_ccflags
          • pid_file
          • query_cache_size
          • plsql_optimize_level
          • plsql_can_transform_sql_to_assign
          • port
          • query_cache_type
          • query_rewrite_enabled
          • query_rewrite_integrity
          • read_only
          • recyclebin
          • regexp_stack_limit
          • regexp_time_limit
          • resource_manager_plan
          • socket
          • runtime_bloom_filter_max_size
          • runtime_filter_max_in_num
          • runtime_filter_type
          • runtime_filter_wait_time_ms
          • secure_file_priv
          • server_uuid
          • 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_TRANSPILER
          • sql_warnings
          • system_time_zone
          • time_zone
          • transaction_isolation
          • transaction_read_only
          • tx_isolation
          • tx_read_only
          • 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
          • version
          • version_comment
          • wait_timeout
        • Session-level variables
          • enable_sql_plan_monitor
          • is_result_accurate
          • last_insert_id
          • nls_language
          • ob_capability_flag
          • ob_enable_show_trace
          • ob_hnsw_ef_search
          • ob_ivf_nprobes
          • ob_last_schema_version
          • ob_org_cluster_id
          • ob_sparse_drop_ratio_search
          • ob_proxy_partition_hit
          • ob_proxy_set_trx_executed
          • ob_trace_info
          • timestamp
          • tracefile_identifier
    • Error codes
      • MySQL-compatible mode
        • Overview
        • 0001 to 3999
        • 4000 ~ 4499
        • 4500 to 4999
        • 5000 to 5999
        • 6000 to 6999
        • 7000 to 7999
        • 8000 to 8999
        • 9000 ~ 9499
        • 9500 to 9999
        • 10000 ~ 12000
        • 22998, 30926, 38104, and 38105
      • Oracle-compatible mode
        • Overview
        • OBE-00000 ~ OBE-00999
        • OBE-01000 to OBE-01499
        • OBE-01500 to OBE-01999
        • OBE-02000 to OBE-04999
        • OBE-05000 to OBE-10000
        • OBE-10000 ~ OBE-19999
        • OBE-20000 to OBE-29999
        • OBE-30000 to OBE-49999
        • OBE-50000 to OBE-99999
        • PLS-00000 to PLS-00999
    • Performance tuning
      • Overview
      • Performance related tools
        • System tools
          • Top general tool
          • CPU tools
          • Memory tools
          • Disk I/O tools
          • Network tools
        • Internal tables
          • GV$SYSSTAT
          • GV$OB_SQL_AUDIT
          • GV$OB_TRANSACTION_PARTICIPANTS
        • Logs
          • slow trans
          • dump tenant info
          • Trace logs
        • OCP
      • System tuning
        • OS parameter tuning
        • Database parameter tuning
          • CPU-related parameters
          • I/O-related parameters
          • Memory-related parameters
          • Network transmission related parameters
        • ODP parameter tuning
          • CPU parameters
          • Network transmission related parameters
          • Routing parameters on nodes
      • Business model tuning
        • Load balancing
        • SQL diagnostics
        • Distributed transactions
      • Performance diagnosis
        • Cluster performance diagnosis
        • Diagnose tenant performance
        • Monitor ODP performance
        • Monitor host performance
        • WR management
          • Overview
          • Manage WR
          • Monitor historical session performance
          • Clean up WR data
        • ASH report
          • ASH
          • Generate an ASH report
          • Analyze an ASH report
          • ASH best practices
      • SQL tuning
        • Execution process of SQL queries
        • SQL execution plans
          • Introduction to SQL execution plans
          • Fast parameterization
          • Execution plan cache
          • Execution plan operators
            • TABLE SCAN
            • JOIN
            • COUNT
            • GROUP BY
            • WINDOW FUNCTION
            • SUBPLAN FILTER
            • DISTINCT
            • SEQUENCE
            • MATERIAL
            • SORT
            • LIMIT
            • FOR UPDATE
            • SELECT INTO
            • SUBPLAN SCAN
            • UNION
            • INTERSECT
            • EXCEPT/MINUS
            • INSERT
            • DELETE
            • UPDATE
            • MERGE
            • EXCHANGE
            • GI
          • Display execution plans in real time
          • SQL optimization practice with EXPLAIN
        • Distributed execution plans
          • Perform distributed execution and parallel queries
          • Generate a distributed plan
          • Schedule distributed execution plans
          • Manage distributed execution plans
          • Parallel execution enabling methods and their priority
          • Auto DOP
          • Execute parallel queries
          • Perform parameter tuning for a parallel query
          • Parallel DML
          • Parallel DDL
        • Parallel execution plans
          • Introduction to parallel execution
          • Classification and optimization of parallel execution
          • Set concurrent execution
            • Concurrency control and queuing
            • Set a DOP for parallel execution
            • Set parallel execution parameters
          • Parallel execution diagnostics
          • Parallel execution tuning tips
          • Quick start
        • SQL tuning
          • Overview of SQL tuning
          • General procedure
          • SQL execution performance monitoring
            • GV$OB_SQL_AUDIT
            • SQL Trace
            • Plan cache views
            • SQL performance analysis example
              • Use SQL Audit to analyze wait events in a query
              • Analyze SQL queries that cause an abrupt RT jitter
              • View and analyze the shape of an execution plan
              • Analyze slow SQL queries
              • Query SQL traffic distribution and QPS
              • Check whether SQL queries are balanced across servers in a cluster
              • Find the TOP N SQL queries
              • Analyze whether an unusually large number of remote execution requests exist in the system or the execution of an SQL statement
              • Find full table scan SQL statements in a tenant
              • Find the TOP N queries with the longest execution time within a certain period
              • Analyze queries related to distributed plans
              • Check whether the RPC execution count of a distributed subplan is balanced across servers in a cluster
          • Optimizer statistics
            • Overview of statistics
            • Statistics collection methods
              • Overview
              • Histograms
              • Manually collect statistics
              • Automatic statistics collection
              • Online statistics collection
              • Dynamic sampling
            • Statistics management
              • Overview
              • Delete statistics
              • Set statistics
              • Import and export statistics
              • Lock and unlock statistics
              • Manage statistics history
              • Manage statistics preferences
            • Collection and update strategy for partitioned table statistics
            • Monitoring and diagnostics for statistics collection
            • OceanBase statistics management practical guide
          • Query rewrite
            • Overview
            • Rule-based query rewrite
            • Cost-based query rewrite
          • Query optimization
            • Access path
              • Overview
              • Rule-based path selection
              • Cost-based path selection
            • Join algorithm
              • Overview
              • Join algorithms
              • Runtime filter
              • Join order
          • Manage execution plans
            • Optimizer hints
            • Plan binding
            • SQL execution plan management (SPM)
        • Glossary
        • General issues in SQL tuning
    • Database proxy
      • OceanBase Database Proxy
      • Connection and routing
      • ODP
        • Overview
        • Manage ODP clusters
          • Create an ODP cluster
          • Manage ODP cluster parameters
          • Delete an ODP cluster
          • Upgrade all ODPs in an ODP cluster
          • Restart all ODPs in an ODP cluster
          • Manage OceanBase clusters connected to an ODP cluster
          • Monitor ODP cluster performance
        • Manage ODP
          • Add an ODP
          • Start an ODP
          • Refresh ODP configurations
          • Stop an ODP
          • Restart an ODP
          • Delete an ODP
          • Upgrade one or more ODPs
        • ODP startup parameters
      • Physical connections
      • Logical connection
        • Query all sessions
        • Query the details of a session
        • Query the metrics of a session
        • Query session variables
        • Terminate a server session
      • Route management
        • Table-based routing of ODP
        • LDC-based routing
        • ODP routing policy
          • Read/Write splitting
          • Follower-first read
          • Blocklist mechanism
          • Transaction routing
      • View tenant sessions
      • Terminate a tenant session
      • Set the maximum number of connections for a tenant
    • Drivers
      • ECOB
      • OBCI
      • OceanBase Connector/J
      • OceanBase Connector/C
      • OceanBase Connector/ODBC
    • Platforms
      • OMA
      • OMS
      • OCP
      • ODC
      • OAT
    • Components & tools
      • O&M management
        • obshell
          • Use cases
            • obshell management
              • Start or stop obshell
              • Upgrade obshell
            • cluster management
              • Deploy an OceanBase cluster
              • Deploy ODP
              • Take over an OceanBase cluster not deployed by obshell
              • Start an OceanBase cluster
              • Stop an OceanBase cluster
              • Use obshell to scale out an OceanBase cluster
              • Upgrade an OceanBase cluster
              • Initiate a cluster-level backup
              • Replace a faulty node
            • Tenant management
              • Create a tenant
              • Initiate a tenant-level backup
              • Initiate tenant-level restore
              • Expand a tenant
            • Configure an OBServer node to start automatically on boot
          • obshell commands
            • Agent commands of obshell
            • Cluster commands of obshell
            • obshell unit commands
            • obshell resource pool commands
            • Tenant command group of obshell
            • Task commands of obshell
            • Backup commands in obshell
            • obshell restore command group
            • obshell recyclebin command group
          • obshell Dashboard
            • obshell Dashboard
            • Cluster information
            • Cluster Management
            • Tenant management
              • Overview of tenant management
              • Overview
              • Database Management
              • User Management
              • Backup and restore
                • Overview of Backup and Restore
                • Immediately backup
                • Initiate restore
            • Performance Monitoring
            • Alarm center
              • Overview
              • View alert events
              • Managing Alert Suppression
            • Parameter management
            • Package management
            • Task Management
          • API references
            • obshell API requests
            • Hybrid encryption for API operations
            • obshell management
              • AgentUpgradeCheck
              • UpgradeAgent
              • Set node password
              • QueryNodeStatus
            • cluster management
              • Add a node before cluster initialization
              • DeleteNodeBeforeClusterInitialization
              • SetClusterConfig
              • SetServerConfig
              • Initialize Cluster
              • StartCluster
              • StopCluster
              • ObUpgradeCheck
              • Upgrade OceanBase Database
              • Scale out a cluster
              • Cluster shrink
              • GetObInfo
              • Delete a Zone
            • ODP management
              • Deploy ODP
              • Start ODP
              • Stop ODP
              • Upload an ODP installation package
              • Upgrade ODP
              • Destroy ODP
            • Unit config management
              • Create a resource specification
              • Retrieve all resource specifications
              • Query the information of a specified resource specification
              • Delete a resource specification
            • Resource pool management
              • Get information about all resource pools
              • Delete a specified resource pool
            • Tenant management
              • Create a tenant
              • Query tenant information
              • Change the tenant password
              • Modify the access whitelist of a tenant
              • Modify the primary zone of a tenant
              • Modify tenant system variables
              • Modify tenant configurations
              • Rename a tenant
              • Create a user
              • Delete a user
              • Delete a tenant
              • Add a tenant replica
              • Modify a tenant replica
              • Delete a tenant replica
              • Lock a tenant
              • Unlock a tenant
              • Get an overview of all tenants
              • Query a system variable of a specified tenant
              • Fuzzy query tenant system variables
              • Query a tenant parameter
              • Fuzzy query tenant parameters
            • Backup management
              • Set the backup configuration for a tenant
              • Set cluster-level backup configurations
              • Update the backup configuration of a tenant
              • Update the cluster-level backup configuration
              • Initiate a backup for a single tenant
              • Initiate a cluster-level backup
              • View information about a backup task for a tenant
              • View cluster-level backup tasks
              • Modify the backup status of a tenant
              • Modify the status of cluster-level backups
              • Modify the log archiving status of a tenant
              • Modify the log archiving status of a cluster
            • Restore management
              • Initiate tenant restore
              • View tenant recovery
              • Cancel tenant restore
            • Recycle bin management
              • Query all tenant information in the recycle bin
              • Restore a tenant from the recycle bin
              • Clear a tenant from the recycle bin
            • Task management
              • OperateDag
              • GetDagDetails
              • GetNodeDetails
              • GetSubtaskDetails
              • QueryUnfinishedTasks
              • QueryUnfinishedAgentTasks
              • QueryUnfinishedObTasks
              • QueryLastObTask
              • QueryLastAgentTask
            • Other APIs
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What's New Overview Feature differences between the Enterprise Edition and Community Edition System architecture Overview SQL data types Built-in functions System views Compatibility with MySQL Limitations Quick start with OceanBase Database Community Edition Before you begin Basic SQL operations (MySQL-compatible mode) Basic SQL operations (Oracle-compatible mode) Build a Python application Build a Java application Build a C application Build a Go application Build a Java application Build a C application Try out operational OLAP Try out parallel import and data compression Try out the multi-tenant feature Deployment overview HA deployment solutions for OceanBase clusters Deployment process Deploy the OceanBase Database Java SDK Deployment overview of OceanBase Database Community Edition Deploy an OceanBase cluster in a Kubernetes environment Deploy OceanBase Desktop Clean up an OceanBase cluster Recommended configurations Data migration Overview Use OMS to migrate data from a MySQL database to a MySQL-compatible 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 Use OMS to migrate data from a MySQL-compatible tenant of OceanBase Database to a MySQL database Use OMS to migrate incremental data from an Oracle-compatible 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 Use OMS to migrate data from an Oracle database to a MySQL-compatible tenant of OceanBase Database Use OMS to migrate data from an Oracle database to an Oracle-compatible 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 Use OMS to migrate data from an Oracle-compatible 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 Use OMS to migrate data from a DB2 LUW database to a MySQL-compatible tenant of OceanBase Database Use OMS to migrate data from a DB2 LUW database to an Oracle-compatible tenant of OceanBase Database Use DBCAT to migrate table schemas from a DB2 LUW database to OceanBase Database Use OMS to migrate data from a MySQL-compatible tenant of OceanBase Database to a DB2 LUW database Use OMS to migrate data from an Oracle-compatible tenant of OceanBase Database to a DB2 LUW database Use OMS to migrate data from a TiDB database to a MySQL-compatible tenant of OceanBase Database Use OMS to migrate data from a PostgreSQL database to a MySQL-compatible tenant of OceanBase Database Use DataX to migrate CSV files to OceanBase Database Import data by using the LOAD DATA statement Import data from SQL files to OceanBase Database Use OMS to migrate data from an OceanBase tenant to another of the same type Use OMS to create an active-active disaster recovery project for OceanBase Database tenants of the same type Use obloader & obdumper to migrate data between MySQL-compatible tenants in OceanBase Database Use obloader & obdumper to migrate data from a MySQL-compatible tenant to an Oracle-compatible tenant in OceanBase Database Use obloader & obdumper to migrate data between Oracle-compatible tenants in OceanBase Database Use obloader & obdumper to migrate data from an Oracle-compatible tenant to a MySQL-compatible tenant in OceanBase Database Migrate data between tables Migrate resource units Export data using the OUTFILE statement Overview of direct load Log in to an OceanBase tenant Cluster introduction Cluster parameters Tenant introduction Tenant capacity Tenant types User tenant introduction Tenant system variables Create a log stream Modify a log stream Replica introduction Use columnstore replicas Traffic distribution Data distribution Overview of data load balancing Transfer partitions Cancel a "Transfer Partition" task Cancel a load balancing job Pause and resume a load balancing job Isolating GTS for high availability: a practical example High availability overview Flashback queries Overview of security and privileges Overview of physical backup and restore
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  1. Documentation Center
  2. OceanBase Database
  3. SQL
  4. V4.4.2
iconOceanBase Database
SQL - V 4.4.2
SQL
KV
  • V 4.4.2
  • V 4.3.5
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  • V 3.1.4 and earlier

10000 ~ 12000

Last Updated:2026-04-02 06:23:59  Updated
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ERROR 10500 (HY000) : incorrect route for obkv global index, client router should refresh
ERROR 10501 (HY000) : TTL feature is not enabled
ERROR 10502 (HY000) : TTL column '%.*s' not exists
ERROR 10503 (HY000) : Column type of '%.*s' is not supported for TTL definition
ERROR 10504 (HY000) : TTL command is not allowed, current TTL status is '%s'
ERROR 10505 (HY000) : No TTL task is running, please try triggering a new TTL task
ERROR 10506 (HY000) : Cannot execute TTL task during tenant is restore
ERROR 10507 (HY000) : Time to live of hbase table must be greater than 0
ERROR 10508 (HY000) : MaxVersions of hbase table must be greater than 0
ERROR 10509 (HY000) : Access denied, credential '%.*s' not match '%.*s'
ERROR 10510 (HY000) : Rowkey column count not match, schema rowkey count is '%ld', input rowkey count is '%ld'
ERROR 10511 (HY000) : Column type for '%.*s' not match, schema column type is '%.*s', input column type is '%.*s'
ERROR 10512 (HY000) : Collation type for '%.*s' not match, schema collation type is '%.*s', input collation type is '%.*s'
ERROR 10513 (HY000) : Scan range missing, input scan range cell count is '%ld', which should equal to rowkey count '%ld'
ERROR 10515 (HY000) : Redis protocol parse error, the input redis string is: '%.*s'
ERROR 10518 (HY000) : Check failed in %.*s"
ERROR 10519 (HY000) : '%.*s' is not disabled
ERROR 10520 (HY000) : '%.*s' is not enabled
ERROR 10521 (HY000) : namespace '%.*s' is not found
ERROR 10522 (HY000) : table '%.*s' already exists
ERROR 10523 (HY000) : table '%.*s' not found
ERROR 10650 (HY000) : ODP process timeout
ERROR 11032 (HY000) : HDFS path message %s
ERROR 11056 (HY000) : jvm.so not found %s
ERROR 11058 (HY000) : cur java home path %s
ERROR 11065 (HY000) : fail to read orc file, message: %s
ERROR 11093 (HY000) : OBLogService rpc execute failed
ERROR 11100 (HY000) : kerberos execution error
ERROR 11101 (HY000) : HMS execution error
ERROR 11102 (HY000) : HMS host: '%.*s' is invalid
ERROR 11103 (HY000) : HMS port: '%.*s' is invalid
ERROR 11104 (HY000) : HMS table location: '%.*s' is invalid
ERROR 11105 (HY000) : HMS service: '%.*s' is invalid
ERROR 11106 (HY000) : HMS service FQDN: '%.*s' is invalid
ERROR 11107 (HY000) : HMS transport: '%.*s' is invalid
ERROR 11108 (HY000) : HMS metastore: '%.*s' is invalid
ERROR 11109 (HY000) : HMS partition error
ERROR 11110 (HY000) : HMS database: '%.*s' not found
ERROR 11111 (HY000) : HMS table: '%.*s' not found
ERROR 11112 (HY000) : This AI model endpoint '%.*s' not found in the tenant
ERROR 11113 (HY000) : This AI model endpoint '%.*s' already exists
ERROR 11114 (HY000) : The param '%.*s' is empty or null
ERROR 11115 (HY000) : The param '%.*s' is invalid
ERROR 11116 (HY000) : The value of param '%.*s' is invalid
ERROR 11117 (HY000) : This type of param '%.*s' is invalid, should be %.*s
ERROR 11118 (HY000) : This AI model '%.*s' not found in the tenant
ERROR 11119 (HY000) : This AI model '%.*s' already exists

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This range contains error codes related to OBProxy, OBSharding, OBKV, and client errors.

ERROR 10500 (HY000) : incorrect route for obkv global index, client router should refresh

  • OceanBase error code: 10500

  • Error: The route for the global index of OBKV is incorrect, and the client router needs to refresh.

  • Solution: Verify your client connection and routing information.

Note

This error code was introduced in OceanBase Database V4.3.0.

ERROR 10501 (HY000) : TTL feature is not enabled

  • OceanBase error code: 10501

  • Error: The TTL feature is not enabled.

  • Solution: Make sure that the TTL feature is enabled.

Note

This error code was introduced in OceanBase Database V4.2.2.

ERROR 10502 (HY000) : TTL column '%.*s' not exists

  • OceanBase error code: 10502

  • Error: The TTL column does not exist.

  • Solution: Confirm that the specified TTL column exists in the database table.

Note

This error code was introduced in OceanBase Database V4.2.2.

ERROR 10503 (HY000) : Column type of '%.*s' is not supported for TTL definition

  • OceanBase error code: 10503

  • Error: The specified column type is not supported for TTL definition.

  • Solution: Confirm that the specified column type is supported for TTL definition.

Note

This error code was introduced in OceanBase Database V4.2.2.

ERROR 10504 (HY000) : TTL command is not allowed, current TTL status is '%s'

  • OceanBase error code: 10504

  • Error: The TTL command is not allowed to be executed because the current TTL status is a specific value.

  • Solution: Check the current status to make sure that it meets the expectations and use an appropriate TTL command to switch to the correct status.

Note

This error code was introduced in OceanBase Database V4.2.2.

ERROR 10505 (HY000) : No TTL task is running, please try triggering a new TTL task

  • OceanBase error code: 10505

  • Error: There are no running TTL tasks, and you need to trigger a new TTL task.

Note

This error code was introduced in OceanBase Database V4.2.2.

ERROR 10506 (HY000) : Cannot execute TTL task during tenant is restore

  • OceanBase error code: 10506

  • Error: The TTL task cannot be executed during tenant restore.

Note

This error code was introduced in OceanBase Database V4.2.2.

ERROR 10507 (HY000) : Time to live of hbase table must be greater than 0

  • OceanBase error code: 10507

  • Error: The TTL of the HBase table must be greater than 0.

  • Solution: Check the KV_ATTRIBUTES property of the current table to make sure that the defined TimeToLive is greater than 0.

Note

This error code was introduced in OceanBase Database V4.2.2.

ERROR 10508 (HY000) : MaxVersions of hbase table must be greater than 0

  • OceanBase error code: 10508

  • Error: The MaxVersions of the HBase table must be greater than 0.

  • Solution: Check the KV_ATTRIBUTES property of the current table to make sure that the defined MaxVersions is greater than 0.

Note

This error code was introduced in OceanBase Database V4.2.2.

ERROR 10509 (HY000) : Access denied, credential '%.*s' not match '%.*s'

  • OceanBase error code: 10509

  • Error: Access was denied because the credential '%.*s' does not match the '%.*s'.

  • Solution: Re-enter the correct credentials, make sure that the username and password are correct, and make sure that you do not make any typing errors.

Note

This error code was introduced in OceanBase Database V4.3.0.

ERROR 10510 (HY000) : Rowkey column count not match, schema rowkey count is '%ld', input rowkey count is '%ld'

  • OceanBase error code: 10510

  • Error: During the execution of an operation, the number of rowkey columns in the input does not match the number of rowkey columns in the database table.

  • Solution: Make sure that the number of rowkey columns in the input matches the number of rowkey columns in the table during the execution of an operation.

Note

This error code was introduced in OceanBase Database V4.3.0.

ERROR 10511 (HY000) : Column type for '%.*s' not match, schema column type is '%.*s', input column type is '%.*s'

  • OceanBase error code: 10511

  • Error: During the execution of an operation, the input column type does not match the column type in the database table. This may lead to data conversion errors or failure to execute the operation correctly.

  • Solution: Make sure that the column type in the input matches the column type in the table during the execution of an operation.

Note

This error code was introduced in OceanBase Database V4.3.0.

ERROR 10512 (HY000) : Collation type for '%.*s' not match, schema collation type is '%.*s', input collation type is '%.*s'

  • OceanBase error code: 10512

  • Error: The collation type does not match.

  • Solution: Make sure that the input collation type matches the collation type in the table during the execution of an operation.

Note

This error code was introduced in OceanBase Database V4.3.0.

ERROR 10513 (HY000) : Scan range missing, input scan range cell count is '%ld', which should equal to rowkey count '%ld'

  • OceanBase error code: 10513

  • Error reason: The number of scan range columns does not match the number of primary key columns during a scan operation.

  • Solution: Ensure that the number of scan range columns matches the number of primary key columns during a scan operation.

Note

This error code was introduced in OceanBase Database V4.3.0.

ERROR 10515 (HY000) : Redis protocol parse error, the input redis string is: '%.*s'

  • OceanBase error code: 10515

  • Error reason: A Redis protocol parsing error occurred.

  • Solution: The client may have sent a custom Redis command that is not supported by OceanBase Database, or the command format may be incorrect.

Note

This error code was introduced in OceanBase Database V4.3.1.

ERROR 10518 (HY000) : Check failed in %.*s"

  • OceanBase error code: 10518

  • Error reason: When the rollbackWhenCheckFailed parameter of the checkAndInsert interface in OBKV is set to true, this error code is thrown if the check fails.

  • Solution: This error code indicates a failed check. You can choose to ignore it or handle it based on your business requirements.

ERROR 10519 (HY000) : '%.*s' is not disabled

  • OceanBase error code: 10519

  • Error reason: The current table is not in the disabled (DISABLED) state. Therefore, the enableTable() or deleteTable() interface of HBase Admin cannot be used.

  • Solution: Call the disableTable() interface of HBase Admin to set the table to the disabled (DISABLED) state and then retry.

Note

This error code was introduced in OceanBase Database V4.4.0.

ERROR 10520 (HY000) : '%.*s' is not enabled

  • OceanBase error code: 10520

  • Error reason: The current table is not in the enabled (ENABLED) state. Therefore, the table cannot be accessed.

  • Solution: Call the enableTable() interface of HBase Admin to set the table to the enabled (ENABLED) state and then retry.

Note

This error code was introduced in OceanBase Database V4.4.0.

ERROR 10521 (HY000) : namespace '%.*s' is not found

  • OceanBase error code: 10521

  • Error reason: The specified HBase namespace does not exist.

  • Solution: Create the corresponding HBase namespace in the OBKV-HBase database and then retry.

Note

This error code was introduced in OceanBase Database V4.4.0.

ERROR 10522 (HY000) : table '%.*s' already exists

  • OceanBase error code: 10522

  • Error reason: The specified HBase table already exists.

  • Solution: Confirm whether the created table meets the requirements. If not, you can delete the table and recreate the required HBase table.

Note

This error code was introduced in OceanBase Database V4.4.0.

ERROR 10523 (HY000) : table '%.*s' not found

  • OceanBase error code: 10523

  • Error reason: The specified HBase table does not exist.

  • Solution: Create the corresponding HBase table.

Note

This error code was introduced in OceanBase Database V4.4.0.

ERROR 10650 (HY000) : ODP process timeout

  • OceanBase error code: 10650

  • Error reason: The ODP process timed out.

  • Solution: Check whether the operation contains a long-running task and increase the timeout for the operation.

Note

This error code was introduced in OceanBase Database V4.3.0.

ERROR 11032 (HY000) : HDFS path message %s

  • OceanBase error code: 11032

  • Error reason: The HDFS path was not found.

  • Solution:

    1. Confirm that the Kerberos authentication keytab and principal are valid and that the corresponding user has access permissions for the HDFS cluster. Then, reconfigure the external table permissions and set up Kerberos authentication.

    2. Confirm that the corresponding HDFS path is correct and exists. Then, re-establish the HDFS path mapping for the external table.

    3. Contact the customer's O&M team to confirm the data block status. You can choose to adjust the bad blocks or replace the environment for further verification.

ERROR 11056 (HY000) : jvm.so not found %s

  • OceanBase error code: 11056

  • Error reason: The JNI Env environment initialization failed.

  • Solution:

    1. Manually confirm whether the java home setting exists and check whether the current user has access permissions for the path. It is possible that java home exists, but the OBServer startup user does not have access permissions for the path.

    2. Refer to ob_java_opts to check whether the ob_java_opts parameter is missing any required configurations.

    3. Check whether the _ob_additional_lib_path path exists and whether the OBServer startup user has access permissions for the path.

ERROR 11058 (HY000) : cur java home path %s

  • OceanBase error code: 11058

  • Error reason: The valid JAVA_HOME environment variable could not be found or recognized.

  • Solution: Ensure that the OceanBase Database process can read the correct and valid JAVA_HOME environment variable when it is running. This typically involves three levels: the operating system user environment, the service startup environment, and the path validity.

ERROR 11065 (HY000) : fail to read orc file, message: %s

  • OceanBase error code: 11065

  • Error reason: The ORC file could not be read.

  • Solution: Check the ORC file message: %s.

Note

This error code was introduced in OceanBase Database V4.4.0.

ERROR 11093 (HY000) : OBLogService rpc execute failed

  • OceanBase Database error code: 11093

  • Error reason: The RPC execution of the log service failed because the target node has insufficient resources or a network failure occurred.

  • Solution: First, locate the log of the target node by using trace_id, and then resolve the issue by using resource monitoring and parameter adjustment.

Note

This error code is introduced in OceanBase Database V4.4.0.

ERROR 11100 (HY000) : kerberos execution error

  • OceanBase Database error code: 11100

  • Error reason: The Kerberos execution failed. This may be caused by a configuration error or an invalid key file.

  • Solution: Check the Kerberos configuration file (such as krb5.conf) and the key file path to ensure that the permissions and content are correct.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11101 (HY000) : HMS execution error

  • OceanBase Database error code: 11101

  • Error reason: The HMS execution failed. This may be caused by an unavailable HMS service or a configuration error.

  • Solution: Verify the HMS service status, check whether the connection parameters (such as the address and port) are correct, and view the HMS logs to troubleshoot the issue.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11102 (HY000) : HMS host: '%.*s' is invalid

  • OceanBase Database error code: 11102

  • Error reason: The HMS host is invalid. This may be caused by an invalid host address format or an inability to resolve the host.

  • Solution: Check the IP address format of HMS to ensure that the configuration is correct.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11103 (HY000) : HMS port: '%.*s' is invalid

  • OceanBase Database error code: 11103

  • Error reason: The HMS port is invalid.

  • Solution: Confirm that the port number conforms to the specifications and check whether the firewall rules allow access to the port.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11104 (HY000) : HMS table location: '%.*s' is invalid

  • OceanBase Database error code: 11104

  • Error reason: The HMS table storage path is invalid.

  • Solution: Verify whether the table path exists and ensure that OceanBase Database has the read/write permissions.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11105 (HY000) : HMS service: '%.*s' is invalid

  • OceanBase Database error code: 11105

  • Error reason: The HMS service is invalid.

  • Solution: Check whether the HMS service name matches the actual deployment and confirm that the service has been started.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11106 (HY000) : HMS service FQDN: '%.*s' is invalid

  • OceanBase Database error code: 11106

  • Error reason: The HMS service FQDN is invalid or cannot be resolved.

  • Solution: Verify the FQDN format and ensure that the DNS resolution is normal.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11107 (HY000) : HMS transport: '%.*s' is invalid

  • OceanBase Database error code: 11107

  • Error reason: The HMS transport is invalid.

  • Solution: Confirm that the transport protocol is compatible with the HMS service.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11108 (HY000) : HMS metastore: '%.*s' is invalid

  • OceanBase Database error code: 11108

  • Error reason: The HMS metastore is invalid.

  • Solution: Check the connection parameters of the HMS metastore.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11109 (HY000) : HMS partition error

  • OceanBase Database error code: 11109

  • Error reason: The HMS partition operation failed. This may be caused by a mismatch in the partition field types or data conflicts.

  • Solution: Check the partition field definitions and data content to ensure they conform to the HMS metadata specifications.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11110 (HY000) : HMS database: '%.*s' not found

  • OceanBase Database error code: 11110

  • Error reason: The requested HMS database does not exist.

  • Solution: Confirm that the database name is spelled correctly, or contact the administrator to create the target database.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11111 (HY000) : HMS table: '%.*s' not found

  • OceanBase Database error code: 11111

  • Error reason: The requested HMS table does not exist.

  • Solution: Check the spelling of the table name and the database context to ensure that the table has been correctly created.

Note

This error code is introduced in OceanBase Database V4.4.1.

ERROR 11112 (HY000) : This AI model endpoint '%.*s' not found in the tenant

  • OceanBase Database error code: 11112

  • Error reason: The specified AI model endpoint does not exist.

  • Solution: Query the DBA_OB_AI_MODEL_ENDPOINTS view to check whether the endpoint exists. If not, use DBMS_AI_SERVICE.CREATE_AI_MODEL_ENDPOINT to create the endpoint.

Note

This error code was introduced in V4.4.1.

ERROR 11113 (HY000) : This AI model endpoint '%.*s' already exists

  • OceanBase Database error code: 11113

  • Error reason: The specified AI model endpoint already exists.

  • Solution: Create an AI model endpoint with a different name.

Note

This error code was introduced in V4.4.1.

ERROR 11114 (HY000) : The param '%.*s' is empty or null

  • OceanBase Database error code: 11114

  • Error reason: The specified parameter of the DBMS_AI_SERVICE subprogram cannot be empty or NULL.

  • Solution: Check whether the specified parameter of the DBMS_AI_SERVICE subprogram is empty or NULL. For more information, see the parameters in DBMS_AI_SERVICE subprograms.

Note

This error code was introduced in V4.4.1.

ERROR 11115 (HY000) : The param '%.*s' is invalid

  • OceanBase Database error code: 11115

  • Error reason: The specified parameter of the DBMS_AI_SERVICE subprogram does not meet the requirements.

  • Solution: Use a valid parameter. For more information, see the parameters in DBMS_AI_SERVICE subprograms.

Note

This error code was introduced in V4.4.1.

ERROR 11116 (HY000) : The value of param '%.*s' is invalid

  • OceanBase Database error code: 11116

  • Error reason: The specified value of the DBMS_AI_SERVICE subprogram does not meet the requirements.

  • Solution: Use a valid value. For more information, see the parameters in DBMS_AI_SERVICE subprograms.

Note

This error code was introduced in V4.4.1.

ERROR 11117 (HY000) : This type of param '%.*s' is invalid, should be %.*s

  • OceanBase Database error code: 11117

  • Error reason: The specified type of the DBMS_AI_SERVICE subprogram does not meet the requirements.

  • Solution: Use a valid type. For more information, see the parameters in DBMS_AI_SERVICE subprograms.

Note

This error code was introduced in V4.4.1.

ERROR 11118 (HY000) : This AI model '%.*s' not found in the tenant

  • OceanBase Database error code: 11118

  • Error reason: The specified AI model does not exist.

  • Solution: Query the DBA_OB_AI_MODELS view to check whether the model exists. If not, use DBMS_AI_SERVICE.CREATE_AI_MODEL to create the model.

Note

This error code was introduced in V4.4.1.

ERROR 11119 (HY000) : This AI model '%.*s' already exists

  • OceanBase Database error code: 11119

  • Error reason: The specified AI model already exists.

  • Solution: Create an AI model with a different name.

Note

This error code was introduced in V4.4.1.

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ERROR 10500 (HY000) : incorrect route for obkv global index, client router should refresh
ERROR 10501 (HY000) : TTL feature is not enabled
ERROR 10502 (HY000) : TTL column '%.*s' not exists
ERROR 10503 (HY000) : Column type of '%.*s' is not supported for TTL definition
ERROR 10504 (HY000) : TTL command is not allowed, current TTL status is '%s'
ERROR 10505 (HY000) : No TTL task is running, please try triggering a new TTL task
ERROR 10506 (HY000) : Cannot execute TTL task during tenant is restore
ERROR 10507 (HY000) : Time to live of hbase table must be greater than 0
ERROR 10508 (HY000) : MaxVersions of hbase table must be greater than 0
ERROR 10509 (HY000) : Access denied, credential '%.*s' not match '%.*s'
ERROR 10510 (HY000) : Rowkey column count not match, schema rowkey count is '%ld', input rowkey count is '%ld'
ERROR 10511 (HY000) : Column type for '%.*s' not match, schema column type is '%.*s', input column type is '%.*s'
ERROR 10512 (HY000) : Collation type for '%.*s' not match, schema collation type is '%.*s', input collation type is '%.*s'
ERROR 10513 (HY000) : Scan range missing, input scan range cell count is '%ld', which should equal to rowkey count '%ld'
ERROR 10515 (HY000) : Redis protocol parse error, the input redis string is: '%.*s'
ERROR 10518 (HY000) : Check failed in %.*s"
ERROR 10519 (HY000) : '%.*s' is not disabled
ERROR 10520 (HY000) : '%.*s' is not enabled
ERROR 10521 (HY000) : namespace '%.*s' is not found
ERROR 10522 (HY000) : table '%.*s' already exists
ERROR 10523 (HY000) : table '%.*s' not found
ERROR 10650 (HY000) : ODP process timeout
ERROR 11032 (HY000) : HDFS path message %s
ERROR 11056 (HY000) : jvm.so not found %s
ERROR 11058 (HY000) : cur java home path %s
ERROR 11065 (HY000) : fail to read orc file, message: %s
ERROR 11093 (HY000) : OBLogService rpc execute failed
ERROR 11100 (HY000) : kerberos execution error
ERROR 11101 (HY000) : HMS execution error
ERROR 11102 (HY000) : HMS host: '%.*s' is invalid
ERROR 11103 (HY000) : HMS port: '%.*s' is invalid
ERROR 11104 (HY000) : HMS table location: '%.*s' is invalid
ERROR 11105 (HY000) : HMS service: '%.*s' is invalid
ERROR 11106 (HY000) : HMS service FQDN: '%.*s' is invalid
ERROR 11107 (HY000) : HMS transport: '%.*s' is invalid
ERROR 11108 (HY000) : HMS metastore: '%.*s' is invalid
ERROR 11109 (HY000) : HMS partition error
ERROR 11110 (HY000) : HMS database: '%.*s' not found
ERROR 11111 (HY000) : HMS table: '%.*s' not found
ERROR 11112 (HY000) : This AI model endpoint '%.*s' not found in the tenant
ERROR 11113 (HY000) : This AI model endpoint '%.*s' already exists
ERROR 11114 (HY000) : The param '%.*s' is empty or null
ERROR 11115 (HY000) : The param '%.*s' is invalid
ERROR 11116 (HY000) : The value of param '%.*s' is invalid
ERROR 11117 (HY000) : This type of param '%.*s' is invalid, should be %.*s
ERROR 11118 (HY000) : This AI model '%.*s' not found in the tenant
ERROR 11119 (HY000) : This AI model '%.*s' already exists