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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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OBE-20000 to OBE-29999

Last Updated:2026-04-02 06:23:59  Updated
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What is on this page
OBE-20000: operator binding does not exist
OBE-20000: '%.*s' invalid partition name
OBE-20000: The stored procedure 'raise_application_error' was called which causes this error to be generated", "ORA%06ld: %.*s
OBE-21000: error number argument to raise_application_error of stringstring is out of range
OBE-21560: argument %.*s is null, invalid, or out of range
OBE-22003: value is out of range
OBE-22369: invalid parameter encountered in method %s
OBE-22370: incorrect usage of method %s
OBE-22625: OCIAnyData is not well-formed
OBE-22626: Type Mismatch while constructing or accessing OCIAnyData
OBE-22627: tc [%s] must be that of object/varray/nested table
OBE-22806: not an object or REF
OBE-22816: unsupported feature with RETURNING clause
OBE-22858: invalid alteration of datatype
OBE-22859: invalid modification of columns
OBE-22859: Expected XML tag , got no content
OBE-22866: cannot replace a type with table dependents
OBE-22901: cannot compare VARRAY or LOB attributes of an object type
OBE-22902: CURSOR expression not allowed
OBE-22903: MULTISET expression not allowed
OBE-22907: invalid CAST to a type that is not a nested table or VARRAY
OBE-22922: LOB value does not exist
OBE-22928: invalid privilege on directories
OBE-22950: cannot ORDER objects without MAP or ORDER method
OBE-22990: LOB locators cannot span transactions
OBE-22998: CLOB or NCLOB in multibyte character set not supported
OBE-23413: table %s.%s does not have a materialized view log
OBE-23420: the parameter %s must evaluate to a time in the future
OBE-23481: unexpected name string'%.*s'
OBE-23538: cannot explicitly refresh a NEVER REFRESH materialized view (%s)
OBE-24323: value not allowed
OBE-24234: unable to get source of string \'%.*s\'.\'%.*s\', insufficient privileges or does not exist
OBE-24235: bad value for object type: %.*s
OBE-24236: source text is empty
OBE-24334: no descriptor for this position
OBE-24381: error(s) in array DML
OBE-24761: transaction rolled back
OBE-24761: transaction rolled back: transaction context does not exist
OBE-24761: transaction rolled back: transaction is killed
OBE-24761: transaction rolled back: partition is frozen
OBE-24761: transaction rolled back: Transaction exiting
OBE-24761: transaction rolled back: transaction needs rollback
OBE-24761: transaction rolled back: transaction idle timeout
OBE-24761: transaction rolled back: transaction context count reach limit
OBE-25002: cannot create INSTEAD OF triggers on tables
OBE-25004: WHEN clause is not allowed in INSTEAD OF triggers
OBE-25005: cannot CREATE INSTEAD OF trigger on a read-only view
OBE-25009: Nested tableclause allowed only for INSTEAD OF triggers
OBE-25021: cannot reference a trigger defined on another table
OBE-25022: cannot reference a trigger of a different type
OBE-25023: Cyclic trigger dependency is not allowed
OBE-25025: cannot specify PRECEDES clause
OBE-25128: No insert/update/delete on table with constraint disabled and validated
OBE-25129: cannot modify constraint (%.*s) - no such constraint
OBE-25137: Data value %s out of range in '%s'
OBE-25154: Column part of using clause can not have qualifier
OBE-25156: old style outer join (+) cannot be used with ANSI joins
OBE-25405: Transaction state unknown
OBE-28001: the password has expired
OBE-28101: policy already exists
OBE-28102: policy does not exist
OBE-28103: adding a policy to an object owned by SYS is not allowed
OBE-28104: input value for %s is not valid
OBE-28105: cannot create security relevant column policy in an object view
OBE-28106: input value for argument %s is not valid
OBE-28107: policy was disabled
OBE-28108: circular security policies detected
OBE-28109: the number of related policies has exceeded the limit of 16
OBE-28110: policy function or package %.*s.%.*s has error
OBE-28111: insufficient privilege to evaluate policy predicate
OBE-28112: failed to execute policy function
OBE-28113: policy predicate has error
OBE-28116: insufficient privileges to do direct path access
OBE-28117: integrity constraint violated * parent record not found
OBE-28118: policy group already exists
OBE-28119: policy group does not exist
OBE-28120: driving context already exists
OBE-28121: driving context does not exist
OBE-28122: can not update SYS_DEFAULT policy group
OBE-28123: Driving context %.*s,%.*s contains invalid group %.*s
OBE-28124: Column %.*s in sec_relevant_cols cannot be of an object data type
OBE-28125: A protected base column was referenced in an unprotected virtual column expression
OBE-28126: Attribute association failed for policy %.*s
OBE-28132: The MERGE INTO syntax does not support the security policy
OBE-28115: policy with check option violation
OBE-28106: input value for argument #%d is not valid
OBE-28264: Client identifier is too long
OBE-28265: Namespace beginning with 'SYS_' is not allowed
OBE-28267: The maximum size specified by the _session_context_size parameter was exceeded
OBE-28268: Invalid NameSpace Value
OBE-29253: Invalid count argument passed to procedure dbms_sql.define_array
OBE-29257: host %.*s unknown
OBE-29261: bad argument
OBE-29295: invalid mime header tag
OBE-29357: %s %.*s already exists
OBE-29358: resource plan %.*s does not exist
OBE-29361: value %ld for %s is outside valid range of 0 to 100
OBE-29362: plan directive %.*s, %.*s does not exist
OBE-29364: plan directive %.*s, %.*s already exists
OBE-29366: plan directive name '%.*s' not supported
OBE-29368: consumer group %.*s does not exist
OBE-29471: DBMS_SQL access denied
OBE-29474: DBMS_SQL.OPEN_CURSOR failed. security_level of 0 is not allowed
OBE-29879: cannot create multiple domain indexes on a column list using same
OBE-29900: operator binding does not exist

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Applicability

This topic applies only to the Oracle-compatible mode OceanBase Database.

OBE-20000: operator binding does not exist

  • Error code in OceanBase Database: 7299

  • SQLSTATE: 42000

  • Cause: The specified operator binding is not found when you are attempting to perform the operation.

  • Solution: Make sure that the operator or function name is correct without spelling errors.

Note

  • For OceanBase Database V4.3.x, this error code is introduced since OceanBase Database V4.3.2.
  • For OceanBase Database V4.2.x, this error code is introduced since OceanBase Database V4.2.4.

OBE-20000: '%.*s' invalid partition name

  • Error code in OceanBase Database: 11002

  • SQLSTATE: HY000

  • Cause: The partition name '%.*s' is incorrect.

  • Solution: Check whether the partition name '%.*s' is correct and complies with the naming rules. Make sure that the partition name is valid.

Note

This error code is introduced since OceanBase Database V4.3.0.

OBE-20000: The stored procedure 'raise_application_error' was called which causes this error to be generated", "ORA%06ld: %.*s

  • Error code in OceanBase Database: 20000

  • SQLSTATE: HY000

  • Cause: The error code of RAISE_APPLICATION_ERROR defined by the stored procedure is called.

  • Solution: Fix the issue based on the description in the error message, or contact the application administrator or database administrator for more information.

OBE-21000: error number argument to raise_application_error of stringstring is out of range

  • Error code in OceanBase Database: 21000

  • SQLSTATE: HY000

  • Cause: The error code of RAISE_APPLICATION_ERROR is out of range.

OBE-21560: argument %.*s is null, invalid, or out of range

  • Error code in OceanBase Database: 5934

  • SQLSTATE: HY000

  • Cause: The passed argument value is NULL, invalid, or out of range. For example, the value of the location or size parameter of LOB/FILE data is beyond the range of 1 to (4 GB - 1), or a file is opened in an invalid opening mode.

  • Solution: Check and correct the program to ensure that no NULL, invalid, or out-of-range value is passed.

OBE-22003: value is out of range

  • Error code in OceanBase Database: 4157

  • SQLSTATE: 22003

  • Cause: An unexpected communication error occurred while executing the specified TCP/IP function func. The return code of the TCP/IP function is rc, and the argument of the func function is parm.

  • Solution: Contact OceanBase Technical Support for troubleshooting.

OBE-22369: invalid parameter encountered in method %s

  • Error code in OceanBase Database: 5955

  • SQLSTATE: HY000

  • Cause: One of the following invalid parameters is being passed to SYS: SYS.AnyType, SYS.AnyData, and SYS.AnyDataSet.

  • Solution: Check the parameters being passed and make sure that the parameters are allowed.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-22370: incorrect usage of method %s

  • Error code in OceanBase Database: 5956

  • SQLSTATE: HY000

  • Cause: SYS.AnyType, SYS.AnyData, or SYS.AnyDataSet is being used inappropriately.

  • Solution: Make sure that the usage is correct.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-22625: OCIAnyData is not well-formed

  • Error code in OceanBase Database: 5965

  • SQLSTATE: HY000

  • Cause: You are attempting to use OCIAnyData without initializing or constructing it.

  • Solution: Use OCIAnyDataBeginConstruct to initialize the handle before attributes are added. Use OCIAnyDataEndConstruct to complete the construction. Alternatively, use OCIAnyDataConvert to perform the construction. Make sure that OCIAnyData is properly constructed before it accesses attributes.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-22626: Type Mismatch while constructing or accessing OCIAnyData

  • Error code in OceanBase Database: 5957

  • SQLSTATE: HY000

  • Cause: The provided type did not match the type of AnyData. If the operation is attempting to do piecewise construction or access, the type provided does not match the type of the current attribute.

  • Solution: Make sure that the type provided matches the type of object to be constructed or accessed.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-22627: tc [%s] must be that of object/varray/nested table

  • Error code in OceanBase Database: 5966

  • SQLSTATE: HY000

  • Cause: The type code is not that of the object, varray, or nested table.

  • Solution: Make sure that the type code is OCI_TYPECODE_OBJECT, OCI_TYPECODE_VARRAY, or OCI_TYPECODE_TABLE.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-22806: not an object or REF

  • Error code in OceanBase Database: 5477
  • SQLSTATE: 42000
  • Cause: The item is neither an object nor a REF.
  • Solution: Use an object or REF and retry the operation.

OBE-22816: unsupported feature with RETURNING clause

  • Error code in OceanBase Database: 9573

  • SQLSTATE: HY000

  • Cause: The object type column does not support the RETURNING clause, LONG column, remote tables, and INSERT and INSTEAD OF triggers with subqueries.

  • Solution: Use independent statements to obtain values.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-22858: invalid alteration of datatype

  • Error code in OceanBase Database: 7414
  • SQLSTATE: 42000
  • Cause: The data type cannot be changed or the specified new data type is invalid.
  • Solution:
    1. Check whether the data type can be changed and make sure that the specified new data type is valid.
    2. Check the size of the data to be changed and make sure that all data can be accommodated in the new data type.

Note

This error code is introduced since OceanBase Database V4.2.0.

OBE-22859: invalid modification of columns

  • Error code in OceanBase Database: 7415
  • SQLSTATE: 42000
  • Cause: The column or table schema cannot be modified.
  • Solution:
    1. Confirm whether the table schema can be modified before you perform modifications.
    2. Confirm whether the column attributes can be modified before you perform modifications.

Note

This error code is introduced since OceanBase Database V4.2.0.

OBE-22859: Expected XML tag , got no content

  • Error code in OceanBase Database: 7416
  • SQLSTATE: 42000
  • Cause: The XML data lacks tag content.
  • Solution:
    1. Make sure that the XML data is valid and all tags have content.
    2. Make sure that the XML format is valid and all tags are correctly nested and closed.

Note

This error code is introduced since OceanBase Database V4.2.0.

OBE-22866: cannot replace a type with table dependents

  • Error code in OceanBase Database: 11006

  • SQLSTATE: HY000

  • Cause: You cannot replace a type with table dependencies.

  • Solution: Delete all tables that depend on the current type and try again.

Note

This error code is introduced since OceanBase Database V4.2.2.

OBE-22901: cannot compare VARRAY or LOB attributes of an object type

  • Error code in OceanBase Database: 7432

  • SQLSTATE: 42000

  • Cause: You are attempting to compare the VARRAY or LOB attributes of an object type without the MAP or ORDER method.

  • Solution: Define the MAP or ORDER method for the object type.

Note

This error code is introduced since OceanBase Database V4.2.2.

OBE-22902: CURSOR expression not allowed

  • Error code in OceanBase Database:

  • SQLSTATE: HY000

  • Cause: The output parameter is not a bind variable.

  • Solution: Check the use method of the output parameter and make sure that the output parameter is a bind variable.

Note

This error code is introduced since OceanBase Database V4.3.0.

OBE-22903: MULTISET expression not allowed

  • Error code in OceanBase Database: 9716
  • SQLSTATE: HY000
  • Cause: The MULTISET expression is not allowed.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-22907: invalid CAST to a type that is not a nested table or VARRAY

  • Error code in OceanBase Database: 9717
  • SQLSTATE: HY000
  • Cause: The CAST operation was performed on something other than a nested table or VARRAY type.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-22922: LOB value does not exist

  • Error code in OceanBase Database: 7419
  • SQLSTATE: HY000
  • Cause: The LOB value that you tried to access does not exist.
  • Solution: Make sure that the table or index that contains the LOB value exists or can be restored.

Note

This error code is introduced since OceanBase Database V4.2.0.

OBE-22928: invalid privilege on directories

  • Error code in OceanBase Database: 5374

  • SQLSTATE: HY000

  • Cause: You are attempting to grant or revoke a directory operation privilege that is invalid for directories.

  • Solution: You can grant or revoke only the CREATE, DELETE, READ, WRITE, and EXECUTE privileges on directories. Do not grant or revoke other privileges.

OBE-22950: cannot ORDER objects without MAP or ORDER method

  • Error code in OceanBase Database: 7412
  • SQLSTATE: 42000
  • Cause: The MAP or ORDER method is not specified for the comparison of objects.
  • Solution:
    1. Specify the MAP or ORDER method in the definition of an object for sorting. You can use the MAP method to map an object to a scalar value, and use the ORDER method to compare the values of two objects.
    2. If you cannot specify the MAP or ORDER method, you can modify the sorting method. For example, you can use other columns for sorting.

Note

This error code is introduced since OceanBase Database V4.2.0.

OBE-22990: LOB locators cannot span transactions

  • Error code in OceanBase Database: 9715

  • SQLSTATE: HY000

  • Cause: The LOB locator cannot span transactions in writing.

  • Solution: Assign another value to the LOB locator before performing the write operation.

OBE-22998: CLOB or NCLOB in multibyte character set not supported

  • Error code in OceanBase Database: 22998

  • SQLSTATE: HY000

  • Cause: CLOB or NCLOB data in a fixed-width or variable-width multi-byte character set is passed to an SQL character function that does not support multi-byte LOB data.

  • Solution: Use a DBMS_LOB function such as DBMS_LOB.INSTR() and DBMS_LOB.SUBSTR(), or use PL/SQL statements DBMS_LOB.READ/WRITE to access LOB data.

OBE-23413: table %s.%s does not have a materialized view log

  • Error code in OceanBase Database: 9755

  • SQLSTATE: HY000

  • Cause: Fast refreshes are not supported because the primary table does not have a materialized view log.

  • Solution: Create the corresponding materialized view log.

Note

This error code is introduced since OceanBase Database V4.2.2.

OBE-23420: the parameter %s must evaluate to a time in the future

  • Error code in OceanBase Database: 9764

  • SQLSTATE: HY000

  • Cause: The interval parameter evaluates to a value earlier than the time returned by CURRENT_DATE.

  • Solution: Select an expression that evaluates to a value later than the time returned by CURRENT_DATE.

Note

This error code is introduced since OceanBase Database V4.2.2.

OBE-23481: unexpected name string'%.*s'

  • Error code in OceanBase Database: 5932

  • SQLSTATE: HY000

  • Cause: The name string is invalid.

OBE-23538: cannot explicitly refresh a NEVER REFRESH materialized view (%s)

  • Error code in OceanBase Database: 9761

  • SQLSTATE: HY000

  • Cause: You are attempting to explicitly perform a NEVER REFRESH MV operation.

  • Solution: Do not perform this refresh operation, or remove the materialized view from the list.

Note

This error code is introduced since OceanBase Database V4.2.2.

OBE-24323: value not allowed

  • Error code in OceanBase Database: 7297

  • SQLSTATE: HY000

  • Cause: An empty or invalid value is passed to a parameter.

  • Solution: Make sure that valid values are correctly passed to all required parameters.

Note

This error code is introduced since OceanBase Database V4.2.2.

OBE-24234: unable to get source of string \'%.*s\'.\'%.*s\', insufficient privileges or does not exist

  • Error code in OceanBase Database: 5962

  • SQLSTATE: HY000

  • Cause: The specified PL/SQL object in a DBMS_PREPROCESSOR subprogram did not exist, or you did not have the privileges required to view its source.

  • Solution: Make sure that the specified object exists and you have the privileges required to view its source.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-24235: bad value for object type: %.*s

  • Error code in OceanBase Database: 5961

  • SQLSTATE: HY000

  • Cause: The specified object type was not appropriate.

  • Solution: Make sure that the specified object type is one of the following types: package, package body, procedure, function, trigger, type, and type body.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-24236: source text is empty

  • Error code in OceanBase Database: 5960

  • SQLSTATE: HY000

  • Cause: The input source text provided for a DBMS_PREPROCESSOR subprogram was empty.

  • Solution: Pass non-empty input source text as the input.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-24334: no descriptor for this position

  • Error code in OceanBase Database: 5973

  • SQLSTATE: HY000

  • Cause: The application was trying to get a descriptor of an illegal position from a handle.

  • Solution: Check the position number.

OBE-24381: error(s) in array DML

  • Error code in OceanBase Database: 5883

  • SQLSTATE: HY000

  • Cause: One or multiple rows in the DML statement failed.

  • Solution: Refer to the error stack in the error handle.

OBE-24761: transaction rolled back

  • Error code in OceanBase Database: 6002

  • SQLSTATE: 40000

  • Cause: The transaction is rolled back.

OBE-24761: transaction rolled back: transaction context does not exist

  • Error code in OceanBase Database: 6213

  • SQLSTATE: 40000

  • Cause: The transaction is rolled back because the transaction context does not exist.

OBE-24761: transaction rolled back: transaction is killed

  • Error code in OceanBase Database: 6211

  • SQLSTATE: 25000

  • Cause: The transaction is rolled back because the transaction is terminated.

OBE-24761: transaction rolled back: partition is frozen

  • Error code in OceanBase Database: 6214

  • SQLSTATE: 25000

  • Cause: The transaction is rolled back because the partition is frozen.

OBE-24761: transaction rolled back: Transaction exiting

  • Error code in OceanBase Database: 6223

  • SQLSTATE: 25000

  • Cause: The transaction is rolled back because the transaction already exists.

OBE-24761: transaction rolled back: transaction needs rollback

  • Error code in OceanBase Database: 6224

  • SQLSTATE: 25000

  • Cause: The transaction is rolled back as required.

OBE-24761: transaction rolled back: transaction idle timeout

  • Error code in OceanBase Database: 6278

  • SQLSTATE: 25000

  • Cause: The transaction is rolled back because the transaction timed out.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-24761: transaction rolled back: transaction context count reach limit

  • Error code in OceanBase Database: 6234

  • SQLSTATE: 25000

  • Cause: The transaction is rolled back because the transaction context count reaches the limit.

OBE-25002: cannot create INSTEAD OF triggers on tables

  • Error code in OceanBase Database: 9572

  • SQLSTATE: HY000

  • Cause: You cannot create an INSTEAD OF trigger on a table.

  • Solution: Create an INSTEAD OF trigger on a view, or create a DML trigger on a table.

OBE-25004: WHEN clause is not allowed in INSTEAD OF triggers

  • Error code in OceanBase Database: 9571

  • SQLSTATE: HY000

  • Cause: The WHEN clause is specified in an INSTEAD OF trigger.

  • Solution: Delete the WHEN clause when you create an INSTEAD OF trigger.

OBE-25005: cannot CREATE INSTEAD OF trigger on a read-only view

  • Error code in OceanBase Database: 9663

  • SQLSTATE: HY000

  • Cause: You cannot create an INSTEAD OF trigger on a read-only view.

  • Solution: Create the INSTEAD OF trigger on a non-read-only view.

OBE-25009: Nested tableclause allowed only for INSTEAD OF triggers

  • Error code in OceanBase Database: 9569

  • SQLSTATE: HY000

  • Cause: Nested table clauses are allowed only in INSTEAD OF triggers.

  • Solution: Define nested table triggers by using the nested table columns of a view.

OBE-25021: cannot reference a trigger defined on another table

  • Error code in OceanBase Database: 9705

  • SQLSTATE: HY000

  • Cause: The referenced trigger in the FOLLOWS clause was defined on another table.

  • Solution: Create the referenced trigger on the same table.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-25022: cannot reference a trigger of a different type

  • Error code in OceanBase Database: 9706

  • SQLSTATE: HY000

  • Cause: The referenced trigger in the FOLLOWS or PRECEDES clause was either a different type or not a compound trigger.

  • Solution: Create the referenced trigger as the same type or as a compound trigger.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-25023: Cyclic trigger dependency is not allowed

  • Error code in OceanBase Database: 9707

  • SQLSTATE: HY000

  • Cause: Cyclic trigger dependency was formed.

  • Solution: Do not create a trigger that can form cyclic dependency.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-25025: cannot specify PRECEDES clause

  • Error code in OceanBase Database: 9708

  • SQLSTATE: HY000

  • Cause: The PRECEDES clause was specified when a regular trigger was created.

  • Solution: Do not create a regular trigger with a PRECEDES clause.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-25128: No insert/update/delete on table with constraint disabled and validated

  • Error code in OceanBase Database: 5795

  • SQLSTATE: HY000

  • Cause: You are attempting to perform an INSERT, UPDATE, or DELETE operation on a table with the DISABLE VALIDATE constraint.

  • Solution: Change the status of the constraint.

OBE-25129: cannot modify constraint (%.*s) - no such constraint

  • Error code in OceanBase Database: 5800

  • SQLSTATE: HY000

  • Cause: The specified constraint does not exist in the table.

OBE-25137: Data value %s out of range in '%s'

  • Error code in OceanBase Database: 4157

  • SQLSTATE: 22003

  • Cause: After conversion, the operand value is greater than the target value.

  • Solution: Increase the target value.

OBE-25154: Column part of using clause can not have qualifier

  • Error code in OceanBase Database: 5619

  • SQLSTATE: HY000

  • Cause: A column used to name a join, such as the NATURAL join or a join that uses the USING clause, cannot contain an explicit qualifier.

  • Solution: Delete the qualifiers.

OBE-25156: old style outer join (+) cannot be used with ANSI joins

  • Error code in OceanBase Database: 5625

  • SQLSTATE: HY000

  • Cause: If a query block uses an ANSI style join, the old-style join (+) used to specify an outer join cannot be used.

  • Solution: Use an ANSI style to specify an outer join.

OBE-25405: Transaction state unknown

  • Error code in OceanBase Database: 6222

  • SQLSTATE: HY000

  • Cause: A failure occurred when a transaction is committed. The transaction status may not be automatically checked during failover.

  • Solution: Manually check the transaction status.

OBE-28001: the password has expired

  • Error code in OceanBase Database: 4366

  • SQLSTATE: HY000

  • Cause: The user account has expired, and the password must be changed.

  • Solution: Change the password or contact the database administrator.

OBE-28101: policy already exists

  • Error code in OceanBase Database: 9718
  • SQLSTATE: HY000
  • Cause: The strategy already exists.
  • Solution: Check whether the strategy has been added or use a different strategy name.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28102: policy does not exist

  • Error code in OceanBase Database: 9719
  • SQLSTATE: HY000
  • Cause: The strategy does not exist.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28103: adding a policy to an object owned by SYS is not allowed

  • Error code in OceanBase Database: 9720
  • SQLSTATE: HY000
  • Cause: You cannot add strategies to objects owned by the sys tenant.
  • Solution: Do not perform this operation.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28104: input value for %s is not valid

  • Error code in OceanBase Database: 9721
  • SQLSTATE: HY000
  • Cause: The input value of the parameter is invalid.
  • Solution: Specify a valid parameter value.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28105: cannot create security relevant column policy in an object view

  • Error code in OceanBase Database: 9722
  • SQLSTATE: HY000
  • Cause: Security-related column strategies cannot be created in an object view.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28106: input value for argument %s is not valid

  • Error code in OceanBase Database: 9723
  • SQLSTATE: HY000
  • Cause: The input value of the parameter is invalid or missing.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28107: policy was disabled

  • Error code in OceanBase Database: 9724
  • SQLSTATE: HY000
  • Cause: The strategy was disabled.
  • Solution: Enable the strategy before using it.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28108: circular security policies detected

  • Error code in OceanBase Database: 9725
  • SQLSTATE: HY000
  • Cause: Strategies on the same object are mutually referenced.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28109: the number of related policies has exceeded the limit of 16

  • Error code in OceanBase Database: 9726
  • SQLSTATE: HY000
  • Cause: The strategies on an object has exceeded the upper limit.
  • Solution: Drop one or more strategies.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28110: policy function or package %.*s.%.*s has error

  • Error code in OceanBase Database: 9727
  • SQLSTATE: HY000
  • Cause: The strategy function or package is incorrect, has been deleted, or is no longer valid.
  • Solution: Check the status of the feature and fix the issue, or create a new strategy with a valid feature.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28111: insufficient privilege to evaluate policy predicate

  • Error code in OceanBase Database: 9728
  • SQLSTATE: HY000
  • Cause: The owner of the strategy function does not have privilege to access the object.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28112: failed to execute policy function

  • Error code in OceanBase Database: 9729
  • SQLSTATE: HY000
  • Cause: The strategy function cannot be executed. One or more errors occurred during the execution of the strategy function.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28113: policy predicate has error

  • Error code in OceanBase Database: 9730
  • SQLSTATE: HY000
  • Cause: The strategy predicate has encountered an error.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28116: insufficient privileges to do direct path access

  • Error code in OceanBase Database: 9731
  • SQLSTATE: HY000
  • Cause: You do not have sufficient privileges to access the path directly.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28117: integrity constraint violated * parent record not found

  • Error code in OceanBase Database: 9732
  • SQLSTATE: HY000
  • Cause: The parent record cannot be found because the integrity constraint is violated.
  • Solution: Make sure that the updated foreign key value is visible at the parent level.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28118: policy group already exists

  • Error code in OceanBase Database: 9733
  • SQLSTATE: HY000
  • Cause: The strategy group already exists.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28119: policy group does not exist

  • Error code in OceanBase Database: 9734
  • SQLSTATE: HY000
  • Cause: The strategy group does not exist.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28120: driving context already exists

  • Error code in OceanBase Database: 9735
  • SQLSTATE: HY000
  • Cause: The driving context already exists.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28121: driving context does not exist

  • Error code in OceanBase Database: 9736
  • SQLSTATE: HY000
  • Cause: The driving context does not exist.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28122: can not update SYS_DEFAULT policy group

  • Error code in OceanBase Database: 9737
  • SQLSTATE: HY000
  • Cause: The SYS_DEFAULT strategy group cannot be updated.
  • Solution: Do not create or drop the SYS_DEFAULT strategy group. Such operations are not allowed.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28123: Driving context %.*s,%.*s contains invalid group %.*s

  • Error code in OceanBase Database: 9738
  • SQLSTATE: HY000
  • Cause: The driving context contains an invalid group.
  • Solution: Make sure that a valid strategy group is passed to DBMS_SESSION.SET_CONTEXT when the driving context of the strategy is initialized.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28124: Column %.*s in sec_relevant_cols cannot be of an object data type

  • Error code in OceanBase Database: 9739
  • SQLSTATE: HY000
  • Cause: The column in sec_relevant_cols cannot be of an object data type.
  • Solution: Make sure that none of the columns specified in sec_relevant_cols are of an object data type or XML type.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28125: A protected base column was referenced in an unprotected virtual column expression

  • Error code in OceanBase Database: 9740
  • SQLSTATE: HY000
  • Cause: A protected base column was referenced in an unprotected virtual column expression.
  • Solution: Check the strategy definition and ensure that the virtual columns are also protected.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28126: Attribute association failed for policy %.*s

  • Error code in OceanBase Database: 9741
  • SQLSTATE: HY000
  • Cause: The attribute association of the strategy failed.
  • Solution: Specify a context attribute of a local application.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28132: The MERGE INTO syntax does not support the security policy

  • Error code in OceanBase Database: 9742
  • SQLSTATE: HY000
  • Cause: The MERGE INTO syntax does not support security strategies.
  • Solution:
    • If you do not have the privilege to modify security strategies, use INSERT, UPDATE, and DELETE DML statements instead of the MERGE INTO statement on tables with defined security strategies.
    • If you have the privilege to modify security strategies, redefine the security strategy so that its statement_types include all DML statement types, including INSERT, UPDATE, and DELETE, or ensure that the strategy has no security-related columns.

Note

This error code is introduced since OceanBase Database V4.1.0.

OBE-28115: policy with check option violation

  • Error code in OceanBase Database: 5789

  • SQLSTATE: HY000

  • Cause: The security flag written into data is invalid.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-28106: input value for argument #%d is not valid

  • Error code in OceanBase Database: 9687

  • SQLSTATE: HY000

  • Cause: The input value for the argument is invalid.

OBE-28264: Client identifier is too long

  • Error code in OceanBase Database: 9688

  • SQLSTATE: HY000

  • Cause: The client ID is longer than 64 bytes in length.

Note

This error code is introduced since OceanBase Database V3.2.4.

OBE-28265: Namespace beginning with 'SYS_' is not allowed

  • Error code in OceanBase Database: 9690

  • SQLSTATE: HY000

  • Cause: A context namespace beginning with 'SYS_' was not allowed.

Note

This error code is introduced since OceanBase Database V3.2.4.

OBE-28267: The maximum size specified by the _session_context_size parameter was exceeded

  • Error code in OceanBase Database: 9691

  • SQLSTATE: HY000

  • Cause: The number of key-value pairs for a session-based context exceeds the upper limit specified by _session_context_size.

Note

This error code is introduced since OceanBase Database V3.2.4.

OBE-28268: Invalid NameSpace Value

  • Error code in OceanBase Database: 9689

  • SQLSTATE: HY000

  • Cause: The name of the context namespace was invalid.

Note

This error code is introduced since OceanBase Database V3.2.4.

OBE-29253: Invalid count argument passed to procedure dbms_sql.define_array

  • Error code in OceanBase Database: 9679

  • SQLSTATE: HY000

  • Cause: The count argument specified in the call to the procedure define_array of the dbms_sql package had an invalid value. Invalid values are negative numbers and nulls. The argument value must be a positive integer.

  • Solution: Correct your PL/SQL program so that only valid arguments are passed to define the array and try again.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-29257: host %.*s unknown

  • Error code in OceanBase Database: 5928

  • SQLSTATE: HY000

  • Cause: The specified host is unknown.

  • Solution: Check the spelling of the host name or the IP address, and ensure that the host name and the IP address are valid.

OBE-29261: bad argument

  • Error code in OceanBase Database: 5951 and 5968

  • SQLSTATE: HY000

  • Cause: A wrong argument is passed to the PL API.

  • Solution: Check the arguments passed to the PL API, and try again.

OBE-29295: invalid mime header tag

  • Error code in OceanBase Database: 5970

  • SQLSTATE: HY000

  • Cause: An error occurred while scanning the string for the mime header tag.

  • Solution: Verify that the source data is a valid mime header string in the format of charset/encoding/encoded string.

Note

This error code is introduced since OceanBase Database V4.0.0.

OBE-29357: %s %.*s already exists

  • Error code in OceanBase Database: 4702

  • SQLSTATE: HY000

  • Cause: The parameter name CREATE_CATEGORY of the CREATE_PLAN, CREATE_CDB_PLAN, or CREATE_CONSUMER_GROUP program, or of the DBMS_RESOURCE_MANAGER program package is already in use.

  • Solution: Specify an unused parameter name.

OBE-29358: resource plan %.*s does not exist

  • Error code in OceanBase Database: 4703

  • SQLSTATE: HY000

  • Cause: An invalid plan name is specified for the UPDATE_PLAN or UPDATE_CDB_PLAN parameter of the DBMS_RESOURCE_MANAGER program package.

  • Solution: Specify a valid plan name.

OBE-29361: value %ld for %s is outside valid range of 0 to 100

  • Error code in OceanBase Database: 4704

  • SQLSTATE: HY000

  • Cause: An invalid value is specified for the plan directive parameter.

  • Solution: Specify a value ranging from 0 to 100.

OBE-29362: plan directive %.*s, %.*s does not exist

  • Error code in OceanBase Database: 4705

  • SQLSTATE: HY000

  • Cause: A nonexistent plan directive is specified for UPDATE_PLAN_DIRECTIVE or UPDATE_CDB_PLAN_DIRECTIVE parameter of the DBMS_RESOURCE_MANAGER program package.

  • Solution: Specify an existing plan directive.

OBE-29364: plan directive %.*s, %.*s already exists

  • Error code in OceanBase Database: 4706

  • SQLSTATE: HY000

  • Cause: You are attempting to create a plan directive that already exists.

  • Solution: Use another value and try again.

OBE-29366: plan directive name '%.*s' not supported

  • Error code in OceanBase Database: 4707

  • SQLSTATE: HY000

  • Cause: The plan directive name is not supported.

OBE-29368: consumer group %.*s does not exist

  • Error code in OceanBase Database: 4710

  • SQLSTATE: HY000

  • Cause: A nonexistent consumer group is specified.

  • Solution: Specify an existing consumer group.

OBE-29471: DBMS_SQL access denied

  • Error code in OceanBase Database: 5856

  • SQLSTATE: HY000

  • Cause: Access to DBMS_SQL is denied for security considerations.

  • Solution: Obtain more information from the alert logs and trace file.

OBE-29474: DBMS_SQL.OPEN_CURSOR failed. security_level of 0 is not allowed

  • Error code in OceanBase Database: 9677

  • SQLSTATE: HY000

  • Cause: The security level of 0 is specified for DBMS_SQL.OPEN_CURSOR.

  • Solution: Specify a valid security level.

OBE-29879: cannot create multiple domain indexes on a column list using same

  • Error code in OceanBase Database: 7301

  • SQLSTATE: 42000

  • Cause: You are attempting to create multiple indexes based on the same domain on a list of columns.

  • Solution: Check for and remove any unnecessary repeated index requests.

Note

  • For OceanBase Database V4.3.x, this error code is introduced since OceanBase Database V4.3.2.
  • For OceanBase Database V4.2.x, this error code is introduced since OceanBase Database V4.2.4.

OBE-29900: operator binding does not exist

  • Error code in OceanBase Database: 7298

  • SQLSTATE: 42000

  • Cause: The specified operator binding is not found when you are attempting to perform the operation.

  • Solution: Make sure that the operator or function name is correct without spelling errors.

Note

  • For OceanBase Database V4.3.x, this error code is introduced since OceanBase Database V4.3.2.
  • For OceanBase Database V4.2.x, this error code is introduced since OceanBase Database V4.2.4.

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What is on this page
OBE-20000: operator binding does not exist
OBE-20000: '%.*s' invalid partition name
OBE-20000: The stored procedure 'raise_application_error' was called which causes this error to be generated", "ORA%06ld: %.*s
OBE-21000: error number argument to raise_application_error of stringstring is out of range
OBE-21560: argument %.*s is null, invalid, or out of range
OBE-22003: value is out of range
OBE-22369: invalid parameter encountered in method %s
OBE-22370: incorrect usage of method %s
OBE-22625: OCIAnyData is not well-formed
OBE-22626: Type Mismatch while constructing or accessing OCIAnyData
OBE-22627: tc [%s] must be that of object/varray/nested table
OBE-22806: not an object or REF
OBE-22816: unsupported feature with RETURNING clause
OBE-22858: invalid alteration of datatype
OBE-22859: invalid modification of columns
OBE-22859: Expected XML tag , got no content
OBE-22866: cannot replace a type with table dependents
OBE-22901: cannot compare VARRAY or LOB attributes of an object type
OBE-22902: CURSOR expression not allowed
OBE-22903: MULTISET expression not allowed
OBE-22907: invalid CAST to a type that is not a nested table or VARRAY
OBE-22922: LOB value does not exist
OBE-22928: invalid privilege on directories
OBE-22950: cannot ORDER objects without MAP or ORDER method
OBE-22990: LOB locators cannot span transactions
OBE-22998: CLOB or NCLOB in multibyte character set not supported
OBE-23413: table %s.%s does not have a materialized view log
OBE-23420: the parameter %s must evaluate to a time in the future
OBE-23481: unexpected name string'%.*s'
OBE-23538: cannot explicitly refresh a NEVER REFRESH materialized view (%s)
OBE-24323: value not allowed
OBE-24234: unable to get source of string \'%.*s\'.\'%.*s\', insufficient privileges or does not exist
OBE-24235: bad value for object type: %.*s
OBE-24236: source text is empty
OBE-24334: no descriptor for this position
OBE-24381: error(s) in array DML
OBE-24761: transaction rolled back
OBE-24761: transaction rolled back: transaction context does not exist
OBE-24761: transaction rolled back: transaction is killed
OBE-24761: transaction rolled back: partition is frozen
OBE-24761: transaction rolled back: Transaction exiting
OBE-24761: transaction rolled back: transaction needs rollback
OBE-24761: transaction rolled back: transaction idle timeout
OBE-24761: transaction rolled back: transaction context count reach limit
OBE-25002: cannot create INSTEAD OF triggers on tables
OBE-25004: WHEN clause is not allowed in INSTEAD OF triggers
OBE-25005: cannot CREATE INSTEAD OF trigger on a read-only view
OBE-25009: Nested tableclause allowed only for INSTEAD OF triggers
OBE-25021: cannot reference a trigger defined on another table
OBE-25022: cannot reference a trigger of a different type
OBE-25023: Cyclic trigger dependency is not allowed
OBE-25025: cannot specify PRECEDES clause
OBE-25128: No insert/update/delete on table with constraint disabled and validated
OBE-25129: cannot modify constraint (%.*s) - no such constraint
OBE-25137: Data value %s out of range in '%s'
OBE-25154: Column part of using clause can not have qualifier
OBE-25156: old style outer join (+) cannot be used with ANSI joins
OBE-25405: Transaction state unknown
OBE-28001: the password has expired
OBE-28101: policy already exists
OBE-28102: policy does not exist
OBE-28103: adding a policy to an object owned by SYS is not allowed
OBE-28104: input value for %s is not valid
OBE-28105: cannot create security relevant column policy in an object view
OBE-28106: input value for argument %s is not valid
OBE-28107: policy was disabled
OBE-28108: circular security policies detected
OBE-28109: the number of related policies has exceeded the limit of 16
OBE-28110: policy function or package %.*s.%.*s has error
OBE-28111: insufficient privilege to evaluate policy predicate
OBE-28112: failed to execute policy function
OBE-28113: policy predicate has error
OBE-28116: insufficient privileges to do direct path access
OBE-28117: integrity constraint violated * parent record not found
OBE-28118: policy group already exists
OBE-28119: policy group does not exist
OBE-28120: driving context already exists
OBE-28121: driving context does not exist
OBE-28122: can not update SYS_DEFAULT policy group
OBE-28123: Driving context %.*s,%.*s contains invalid group %.*s
OBE-28124: Column %.*s in sec_relevant_cols cannot be of an object data type
OBE-28125: A protected base column was referenced in an unprotected virtual column expression
OBE-28126: Attribute association failed for policy %.*s
OBE-28132: The MERGE INTO syntax does not support the security policy
OBE-28115: policy with check option violation
OBE-28106: input value for argument #%d is not valid
OBE-28264: Client identifier is too long
OBE-28265: Namespace beginning with 'SYS_' is not allowed
OBE-28267: The maximum size specified by the _session_context_size parameter was exceeded
OBE-28268: Invalid NameSpace Value
OBE-29253: Invalid count argument passed to procedure dbms_sql.define_array
OBE-29257: host %.*s unknown
OBE-29261: bad argument
OBE-29295: invalid mime header tag
OBE-29357: %s %.*s already exists
OBE-29358: resource plan %.*s does not exist
OBE-29361: value %ld for %s is outside valid range of 0 to 100
OBE-29362: plan directive %.*s, %.*s does not exist
OBE-29364: plan directive %.*s, %.*s already exists
OBE-29366: plan directive name '%.*s' not supported
OBE-29368: consumer group %.*s does not exist
OBE-29471: DBMS_SQL access denied
OBE-29474: DBMS_SQL.OPEN_CURSOR failed. security_level of 0 is not allowed
OBE-29879: cannot create multiple domain indexes on a column list using same
OBE-29900: operator binding does not exist