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

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Start on Cloud

OceanBase

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

Product Overview
DEPLOY YOUR WAY

OceanBase Cloud

The best way to deploy and scale OceanBase

OceanBase Enterprise

Run and manage OceanBase on your infra

TRY OPEN SOURCE

OceanBase Community Edition

The free, open-source distributed database

OceanBase seekdb

Open source AI native search database

Customer Stories

Real-world success stories from enterprises across diverse industries.

View All
BY USE CASES

Mission-Critical Transactions

Global & Multicloud Application

Elastic Scaling for Peak Traffic

Real-time Analytics

Active Geo-redundancy

Database Consolidation

Comprehensive knowledge hub for OceanBase.

Blog

Live Demos

Training & Certification

Documentation

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

View All
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OceanBase Database

SQL - V4.2.1

  • What is OceanBase Database
    • Overview
    • Differences between the Enterprise Edition and the Community Edition
    • System architecture
    • Compatibility with Oracle
      • Overview
      • SQL data types
      • Built-in functions
      • System views
    • Compatibility with MySQL
    • Limitations
  • Get Started
    • Video tutorials
    • Quick start with OceanBase Database Community Edition
    • 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
    • Build a sample application (Oracle mode)
      • Build a Java application
      • Build a C application
    • Learn OceanBase SQL
      • Basic SQL operations (Oracle mode)
      • Basic SQL operations (MySQL mode)
      • Before you begin
    • Build a sample application (MySQL mode)
      • Build a Python application
      • Build a Java application
      • Build a C application
      • Build a Go application
  • Develop
    • Develop applications (MySQL mode)
      • Sample applications
        • Java
          • Spring Boot
          • Spring Batch
          • Spring Data JDBC
          • Spring Data JPA
          • Hibernate
          • MyBatis
        • Python
          • mysqlclient
          • PyMySQL
        • Go
          • Go-SQL-Driver/MySQL
          • GORM
      • Write data
        • Delete data
        • Update data
        • Insert data
        • Replace data
      • Application errors
        • Common errors and troubleshooting practices
          • Table does not exist, with ERROR 1146 reported
          • Data truncated while being inserted, with ERROR 1265 reported
          • Incorrect user password, with ERROR 1045 reported
          • Transaction timed out, with ERROR 4012 reported
          • User locked, with ERROR 3118 reported
          • Idle transaction timed out, with ERROR 6002 reported
          • Table already exists, with ERROR 1050 reported
          • Duplicate data inserted, with ERROR 1062 reported
          • Disconnected from the server, with ERROR 2013 reported
          • ERROR 1215 reported in foreign key addition
        • Troubleshooting guidelines
          • About error codes
          • Error handling specifications for MySQL-compatible applications
      • Connect to OceanBase Database
        • Connect to an OceanBase Database tenant by using OBClient
        • Connect to an OceanBase Database tenant by using the mysql client
        • Connect to OceanBase Database by using ODC
        • Overview
        • Use database connection pool
          • HikariCP
          • Proxool
          • DBCP
          • Commons Pool
          • Database connection pool configuration
          • Tomcat
          • c3p0
          • Druid
      • Read data
        • Use a DBLink in queries
        • Single-table queries
        • Set operations
        • Use operators and functions in queries
          • Use aggregate functions in queries
          • Use numerical functions in queries
          • Use the SELECT ... LOCK IN SHARE MODE statement to lock query results
          • Use the CASE conditional operator in queries
          • Use type conversion functions in queries
          • Use datetime functions in queries
          • Use arithmetic operators in queries
          • Use string functions in queries
          • Use string concatenation operators in queries
          • Use NULL-related functions in queries
          • Use the SELECT ... FOR UPDATE statement to lock query results
        • Join tables
          • RIGHT JOIN queries
          • Subqueries
          • LEFT JOIN queries
          • INNER JOIN queries
          • FULL JOIN queries
      • Plan database objects
        • Create an external table
        • Create an index
        • Create a table group
        • Create a database
        • Create a table
      • Transactions
        • Roll back a transaction
        • Commit a transaction
        • Overview
        • Start a transaction
        • Savepoints
          • Mark a savepoint
          • Release a savepoint
          • Roll back a transaction to a savepoint
    • Develop applications (Oracle mode)
      • Sample applications
        • Java
          • Spring Boot
          • MyBatis
          • OceanBase Connector/J
          • Spring Data JPA
          • Spring Data JDBC
          • Hibernate
          • Spring Batch
          • JFinal
        • C/C++
          • OceanBase Connector/C
          • OceanBase Connector/ODBC
          • SqlSugar
      • Read data
        • Set operations
        • Single-table queries
        • Use a DBLink in queries
        • Join tables
          • INNER JOIN queries
          • RIGHT JOIN queries
          • LEFT JOIN queries
          • Subqueries
          • FULL JOIN queries
        • Use operators and functions in queries
          • Use arithmetic operators in queries
          • Use type conversion functions in queries
          • Use aggregate functions in queries
          • Use numerical functions in queries
          • Use string concatenation operators in queries
          • Use CASE functions in queries
          • Use the SELECT...FOR UPDATE statement to lock query results
          • Use string functions in queries
          • Use NULL-related functions in queries
          • Use datetime functions in queries
      • Connect to OceanBase Database
        • Overview
        • Connect to OceanBase Database by using ODC
        • Connect to an OceanBase Database tenant by using OBClient
        • Use database connection pool
          • c3p0
          • Database connection pool configuration
          • DBCP
          • HikariCP
          • Proxool
          • Tomcat
          • Commons Pool
          • Druid
      • Application errors
        • Common errors and troubleshooting practices
          • Transaction timed out, with Error ORA-00600 reported
          • Idle transaction timed out, with Error ORA-24761 reported
          • Duplicate data inserted, with Error ORA-00001 reported
          • Table does not exist, with Error ORA-04043 reported
          • Inconsistent data types, with Error ORA-00932 reported
          • User locked, with ERROR 3118 reported
          • Table already exists, with Error ORA-00955 reported
          • Error ORA-00600 reported in foreign key addition
          • Incorrect user password, with ERROR 1045 reported
        • Troubleshooting guidelines
          • Error handling specifications for Oracle-compatible applications
          • About error codes
      • Write data
        • Insert data
        • Update data
        • Delete data
        • Replace data
      • Transactions
        • Overview
        • Start a transaction
        • Savepoints
          • Mark a savepoint
          • Roll back a transaction to a savepoint
        • Commit a transaction
        • Roll back a transaction
      • Plan database objects
        • Create a table group
        • Create a table
        • Create an index
        • Create an external table
  • Deploy
    • Clear an OceanBase cluster
    • Overview
    • HA deployment solutions for OceanBase clusters
    • Deploy OceanBase Database Community Edition
      • Overview
      • Deploy locally
        • Deploy OceanBase Database in a production environment by using the CLI
        • Software and hardware requirements
        • Before deployment
          • (Optional) Check resources
          • (Optional) Set password-free SSH logon
          • (Optional) Configure the clock source
          • (Optional) Perform disk planning
          • (Optional) Configure limits.conf
          • (Optional) Configure sysctl.conf
          • (Optional) Disable the firewall and SELinux
          • (Optional) Create a user
        • Deploy through GUI
          • Deploy an OceanBase cluster through the GUI of OCP
          • Deploy an OceanBase cluster through the GUI of OBD
      • Deploy OceanBase Database in a Kubernetes cluster
    • Deploy OceanBase Database Enterprise Edition
      • Deployment process
      • Before deployment
        • Prepare servers
        • Configure servers
        • Prepare installation packages
        • Deploy OAT
      • Deploy through GUI
        • (Optional) Deploy ODP
        • Deploy OceanBase clusters using OCP
          • Deploy a standalone OceanBase database by using OCP
          • Deploy a two-replica OceanBase cluster with the arbitration service by using OCP
          • Add a server to the resource pool
          • Deploy a three-replica OceanBase cluster by using OCP
          • Deploy a single-replica OceanBase cluster by using OCP
        • Configure deployment environment using OAT
          • Add a server
        • Deploy OCP
          • Overview
          • Upload installation packages
          • Create MetaDB
          • Deploy OCP
      • Deploy through CLI
        • Configure deployment environment
          • Initialize an OBServer node by using oatcli
          • (Optional) Configure the clock source
        • Deploy OceanBase clusters using CLI
          • Deploy a standalone OceanBase database by using the CLI
          • Deploy a two-replica OceanBase cluster with the arbitration service by using the CLI
          • Deploy a three-replica OceanBase cluster by using the CLI
          • Deploy a single-replica OceanBase cluster by using the CLI
        • (Optional) Deploy ODP
  • Migrate
    • Overview
    • Migrate from MySQL databases to OceanBase Database
      • Use Flink CDC to synchronize data from a MySQL database to OceanBase Database
      • Use OMS to migrate data from a MySQL database to a MySQL tenant of OceanBase Database
      • Use mydumper and myloader to migrate data from a MySQL database to OceanBase Database
      • Use ChunJun to migrate data from a MySQL database to OceanBase Database
      • Use CloudCanal to migrate data from a MySQL database to OceanBase Database
      • Use DataX to migrate table data from a MySQL database to OceanBase Database
      • Use DBCAT to migrate schemas from a MySQL database to OceanBase Database
      • Use Canal to synchronize data from a MySQL database to OceanBase Database
    • Migrate from OceanBase Database to MySQL databases
      • Use OMS to migrate data from a MySQL tenant of OceanBase Database to a MySQL database
      • Use OMS to migrate incremental data from an Oracle tenant of OceanBase Database to a MySQL database
      • Use DBCAT to migrate schemas from OceanBase Database to a MySQL database
      • Use DataX to migrate table data from OceanBase Database to a MySQL database
      • Use Canal to synchronize data from OceanBase Database to a MySQL database
      • Use CloudCanal to migrate data from OceanBase Database to a MySQL database
      • Use Flink CDC to migrate data from OceanBase Database to a MySQL database
      • Use ChunJun to migrate data from OceanBase Database to a MySQL database
    • Migrate from Oracle databases to OceanBase Database
      • Use OMS to migrate data from an Oracle database to a MySQL tenant of OceanBase Database
      • Use OMS to migrate data from an Oracle database to an Oracle tenant of OceanBase Database
      • Use DBCAT to migrate schemas from an Oracle database to OceanBase Database
      • Use DataX to migrate table data from an Oracle database to OceanBase Database
    • Migrate from OceanBase Database to Oracle databases
      • Use DBCAT to migrate schemas from OceanBase Database to an Oracle database
      • Use DataX to migrate table data from OceanBase Database to an Oracle database
      • Use OMS to migrate data from an Oracle tenant of OceanBase Database to an Oracle database
    • Migrate from DB2 databases to OceanBase Database
      • Use OMS to migrate data from a DB2 LUW database to a MySQL tenant of OceanBase Database
      • Use OMS to migrate data from a DB2 LUW database to an Oracle tenant of OceanBase Database
      • Use DBCAT to migrate table schemas from a DB2 LUW database to OceanBase Database
    • Migrate from OceanBase Database to DB2 databases
      • Use OMS to migrate data from a MySQL tenant of OceanBase Database to a DB2 LUW database
      • Use OMS to migrate data from an Oracle tenant of OceanBase Database to a DB2 LUW database
    • Migrate from TiDB databases to OceanBase Database
      • Use OMS to migrate data from a TiDB database to a MySQL tenant of OceanBase Database
    • Migrate from PostgreSQL databases to OceanBase Database
      • Use OMS to migrate data from a PostgreSQL database to a MySQL tenant of OceanBase Database
    • Migrate from CSV files to OceanBase Database
      • Import data by using the LOAD DATA statement
      • Use DataX to migrate CSV files to OceanBase Database
    • Import data from SQL files to OceanBase Database
    • Migrate data between OceanBase Database
      • Use OBLOADER & OBDUMPER to migrate data from a MySQL tenant to an Oracle tenant in OceanBase Database
      • Use OMS to migrate data from an OceanBase Database tenant to another of the same type
      • Use OMS to migrate data from an OceanBase Database tenant to another of the same type in active-active disaster recovery scenarios
      • Use OBLOADER & OBDUMPER to migrate data between Oracle tenants in OceanBase Database
      • Use OBLOADER & OBDUMPER to migrate data between MySQL tenants in OceanBase Database
      • Use OBLOADER & OBDUMPER to migrate data from an Oracle tenant to a MySQL tenant in OceanBase Database
    • Migrate data using SQL statements
      • Export data by using OUTFILE statements
      • Migrate resource units
      • Migrate data between tables
    • Bypass import
      • Import data in bypass mode by using the INSERT INTO SELECT statement
      • Import data in bypass mode by using the LOAD DATA statement
      • Overview
  • Manage
    • Log on to an OceanBase Database tenant
    • Manage replicas
      • Overview
      • Replica distribution
        • Locality
        • Common locality operations
          • View locality
          • Adjust the distribution of replicas
          • Remove replicas
          • Add replicas
          • View the locality change history
          • Migrate units
          • Modify locality
      • Traffic distribution
      • Data distribution
    • Performance tuning
      • Overview
      • Identify bottlenecks on the data link
      • Identify bottlenecks within components
        • ODP performance bottlenecks
        • ODP performance analysis
        • OBServer performance bottlenecks
          • Overview
          • Non-optimal plan
            • Non-optimal plans
            • Cardinality
            • Buffer tables
          • Hard parsing
          • Capacity issues
          • Internal wait events
      • SQL tuning
        • SQL tuning system
        • Execution plan optimization
          • Order and limit optimization
            • Overview
            • SORT assignment and optimization
            • Optimization in ORDER BY + LIMIT scenarios
          • Plan management
            • Plan cache
            • Disadvantages of the plan cache and countermeasures
            • Views related to the plan cache
          • Statistical information and row estimation
            • Overview
            • Use statistical information and row estimation
            • Statistical information
              • Overview
              • 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
              • Collect statistical information
                • Overview
                • Manually collect statistics
                • Automatically collect statistics
            • Row estimation
              • Overview
              • Row estimation based on the selectivity
              • Row estimation based on the storage layer
          • Join order and join algorithm
            • Joins
            • Join algorithm
              • Nested loop joins
              • Hash joins
              • Merge joins
              • Common business issues
            • Join types
            • Join order
          • Index selection
            • Overview
            • Reduce row reads
            • Avoid table access by index primary key
            • Avoid sorting
        • Business logic optimization
          • SQL specifications
          • Schema specifications
        • Locate and analyze slow queries I
        • Locate and analyze slow queries II
        • Typical scenarios and cases
    • Daily inspection
      • Deadlock detection
      • Overview
      • Check tenant resource usage
      • Check cluster parameters
      • Check cluster resource usage
      • Check the host status
      • Check the NTP offset
      • Check the OBServer node status
      • End-to-end tracing
        • Show end-to-end tracing information
        • Process
        • Methods
        • Overview
    • Manage clusters
      • Overview
      • Cluster parameters
      • Common cluster operations
        • Delete a zone
        • Isolate a zone
        • Add a zone
        • Restart a node
        • Delete a node
        • Modify a zone
        • Modify cluster parameters
        • Isolate a node
        • Online upgrade from standalone deployment to distributed deployment
        • View cluster parameters
        • View a zone
        • Add a node
        • Start a zone
        • View a node
        • Replace a node
        • Upgrade clusters
          • Upgrade OceanBase Database Enterprise Edition
            • Upgrade the arbitration service
            • Upgrade an OceanBase cluster
            • Overview
            • Check upgrade results
          • Upgrade OceanBase Database Community Edition
            • Upgrade OceanBase Database by using OBD
      • Troubleshoot common problems
        • Failures of a minority of nodes
        • Failures of the majority of nodes
    • Security and permissions
      • Overview
      • Access control
        • Network security access control
        • Row-level access control
        • RPC connection authentication
        • Overview
        • Users and permissions
          • Overview
          • MySQL mode
            • Privilege delegation
            • Drop a user
            • Lock or unlock a user
            • Grant privileges
            • Modify user privileges
            • View user privileges
            • Create a user
            • Privilege types in MySQL mode
          • Oracle mode
            • Privilege types in Oracle mode
            • Create a user
            • Grant direct privileges
            • Privilege delegation
            • Manage roles
              • Overview
              • Create a role
              • Grant a role to another role
              • Grant a role to a user
              • Activate or deactivate roles for a user
              • View roles
              • Modify a role
              • Revoke a role
              • Drop a role
            • Grant indirect privileges
            • Query user privileges
            • Modify user privileges
            • Lock or unlock a user
            • Drop a user
      • Transparent data encryption
        • Transparent data encryption test report
        • Overview
        • MySQL mode
          • Enable transparent data encryption for existing tables
          • Decrypt a table
          • Enable transparent data encryption for new tables
        • Oracle mode
          • Decrypt a table
          • Enable transparent data encryption for existing tables
          • Enable transparent data encryption for new tables
      • Identification and authentication
        • MySQL mode
          • Identity authentication
          • Password complexity
          • Logon failure processing
        • Oracle mode
          • Identity authentication
          • Password complexity
          • Logon failure processing
      • Security audit
        • Overview
        • Enable security audit
        • Set and view audit rules
        • View audit records
        • Audit user logon operations
        • Audit user operations
        • Audit specified database objects
      • Data transmission encryption
        • ODP transmission encryption
        • OBServer transmission encryption
        • Overview
    • Backup and restore
      • Introduction to physical backup and restore
      • Deploy NFS
      • Restore by table
        • Preparations
        • Parameters related to table restore
        • View the table restore result
        • Views related to table restore
        • View the table restore progress
        • Perform table restore
        • Cancel table restore
      • Clear backup data
        • Automatically clean up expired backup data
        • Stop backup cleanup
        • Query the backup cleanup progress
        • Query the backup cleanup history
        • Backup cleanup parameter
        • Views related to backup cleanup
      • Log archive
        • Overview
        • Disable ARCHIVELOG
        • Change the log archive destination
        • View information about pieces
        • Views related to log archiving
        • View the archiving progress
        • Preparations
        • View the archiving history
        • View the archiving parameter settings
        • Enable ARCHIVELOG
      • Restore data
        • Parameters related to physical restore
        • Views related to physical restore
        • Convert a standby tenant into primary tenant
        • Cancel physical restore
        • Preparations
        • Upgrade a tenant after restore
        • View the physical restore progress
        • View physical restore results
        • Perform physical restore
        • Replay logs to a standby tenant
      • Data backup
        • Preparations
        • Initiate a full data backup job
        • Initiate an incremental data backup job
        • Stop a backup job
        • View the data backup progress
        • View the data backup history
        • View data backup parameter settings
        • Change the backup destination
        • Views related to data backup
    • Emergency response
      • Emergency response overview
      • Analysis, diagnosis, and decision-making procedure
      • Common emergency problem handling
        • Capacity issues
          • Node data disk full
          • obproxy thread exhaustion
          • Exceptions of SQL queries
          • Tenant memory full
          • Node network card overload
          • Tenant request queue backlog
          • Node disk I/O high
          • Node clog disk full
        • Hardware issues
          • Other hardware and network issues
          • Node failure
          • ODP failure
          • Network failure
        • Other cluster issues
          • Insufficiency or leakage of system memory
          • sys tenant or RootService exceptions
    • High availability
      • Flashback queries
      • High availability overview
      • Physical standby database disaster recovery
        • Overview
        • Limitations
        • Create a standby tenant
          • Preparations
          • Create an empty standby tenant
          • Create a standby tenant by using the backup and recovery feature
          • Create a standby tenant by using the BACKUP DATABASE PLUS ARCHIVELOG feature
        • Log transmission service
          • Overview
          • Configure log transmission service
            • Specify a log restore source
            • Set the log recovery 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
          • Switchover
          • Overview of tenant roles
          • Failover
        • Drop primary and standby tenants
      • Multi-replica disaster recovery
        • Disaster recovery architecture and levels
        • ODP high availability
        • Database-level high availability
        • Data link introduction
      • Arbitration high availability
        • Enable the arbitration service for a tenant
        • Remove the arbitration service for a cluster
        • Disable the arbitration service for a tenant
        • Replace the arbitration service for a cluster
        • Clear residual cluster information
        • Overview
        • Modify the log stream downgrade control time
      • Manage recycle bin
        • Overview
        • Enable or disable the recycle bin
        • View objects in the recycle bin
        • Restore objects from the recycle bin
        • Purge the recycle bin
    • 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 mode)
            • Configure SQL statement-level resource isolation
            • Update a resource management plan config
            • Configure cgroups
            • Delete a resource management plan
            • Calibrate the disk performance
            • Configure user-level resource isolation
            • Delete a resource management plan config
            • Clear cgroup configurations
            • Delete a resource group
          • Manage resource isolation (MySQL mode)
            • Configure cgroups
            • Configure user-level resource isolation
            • Calibrate the disk performance
            • Configure SQL statement-level resource isolation
            • Update a resource management plan config
            • Delete a resource management plan config
            • Delete a resource management plan
            • Delete a resource group
            • Clear cgroup configurations
        • View tenant and resource information
        • View and set the tenant allowlist
        • View tenant system variables
        • Modify system variables of a tenant
        • Scale in/out
          • Introduction to scaling in/out
          • Modify the unit configs for a tenant
          • Modify the number of resource units for a tenant
          • Modify the number of primary zones for a tenant
        • Modify attributes of a resource pool
        • Modify attributes of a tenant
        • Lock and unlock a tenant
        • Drop a tenant
        • Recover a tenant
        • Rename a tenant
        • Manage resource pools
          • View resource pool information
          • Allocate a resource pool to a tenant
          • Remove resource pools from a tenant
          • Merge and split resource pools
          • Drop a resource pool
        • Manage unit configs
          • Query unit configs
          • Modify unit configs
          • Drop unit configs
    • Troubleshooting
      • Overview
      • Bootstrap
      • Storage
        • Migration, replication, and rebuild tasks
        • Minor compaction and major compaction
        • Memory-related errors
      • Election
        • Election
        • Leader switchover exceptions
        • Absence of the leader
      • Transaction
        • Suspended transactions
        • Long-running transactions
        • Transaction-related errors
        • Transaction rollbacks
        • Idle transactions
      • Log synchronization-related errors
      • Physical standby database
        • Switchover failures
        • Log synchronization stuck for the physical standby database
      • Backup and restore
        • Physical restore failures
        • Data backup failures
    • Monitor
      • Overview
      • Cases
      • Metrics
        • System monitoring
          • Wait events
          • Metrics
          • Latch events
          • Overview
        • SQL monitoring
          • Overview
          • SQL audit
          • Execution plans
    • Logs
      • Overview
      • Log levels
      • Log stability
      • Log control
      • Log metrics
      • View logs
        • Query the log of a previous SQL request by using the SQL Trace feature
        • Search for the logs of a specific SQL request
  • OBKV
    • Overview
    • Architecture
    • OBKV-Table
      • FAQ
      • Delete expired data
      • Use the OBKV-Table GO client
        • Aggregation API
        • Use the OBKV-Table Go client to connect to a cluster
        • About queries
        • Overview of the Go client
        • Batch operations
        • Filters
        • Individual API operations
      • Use the OBKV-Table Java client
        • Use the OBKV-Table Java client to connect to a cluster
        • Set client parameters
        • Supported client interfaces
        • Use the OBKV-Table Java client
      • OBKV-Table
        • Differences between replace and insert_or_update
        • Overview
        • OBKV-Table operation types
        • Supported value types
        • OBKV-Table data models
    • OBKV-HBase
      • Overview
      • Compatibility with HBase
      • FAQ
      • Deployment
      • Core features
      • Performance test
      • Views
      • Use OBKV-HBase
        • Overview
        • Data model design
        • Connect to a cluster by using the OBKV-HBase client
        • Data operation examples
        • Data model
        • Delete expired data
      • OBKV-HBase integration
        • Synchronize data to OBKV-HBase by using Flink
      • OBKV-HBase management
        • Overview
        • Security and permissions
        • Monitoring metrics
        • High availability
    • RPC message compression
  • Reference
    • SQL reference
      • Reserved keywords (Oracle mode)
      • Reserved keywords (MySQL mode)
      • SQL syntax
        • System tenants
          • ALTER RESOURCE UNIT
          • CREATE RESOURCE POOL
          • SET DECRYPTION
          • DROP RESOURCE UNIT
          • CREATE TENANT
          • CREATE RESOURCE UNIT
          • SET ENCRYPTION
          • ALTER RESOURCE POOL
          • ALTER RESOURCE TENANT
          • DROP TENANT
          • ALTER TENANT
          • DROP RESOURCE POOL
          • Overview
          • ALTER SYSTEM
            • ACTIVATE
            • ARCHIVELOG
            • ARBITRATION
            • BOOTSTRAP
            • BACKUP
            • BALANCE TASK
            • CANCEL MIGRATE UNIT
            • CANCEL RECOVER TABLE
            • MERGE
            • MIGRATE UNIT
            • DELETE BACKUP
            • FAILOVER
            • FLUSH PLAN CACHE
            • JOB
            • LOG RESTORE SOURCE
            • PARAMETER
            • RECOVER
            • REFRESH
            • RESTORE
            • RECOVER TABLE
            • SERVER
            • SWITCHOVER
            • THROTTLE
            • ZONE
        • User tenants (MySQL mode)
          • Basic elements
            • Data types
              • SET type
              • Overview
              • ENUM type
              • Datetime types
                • TIME type
                • DATE, DATETIME, and TIMESTAMP types
                • Overview
                • YEAR type
              • Numeric types
                • Overview
                • Integer data types
                • Fixed-point data types
                • Floating-point data types
                • Bit value data type
              • Spatial data types
                • Overview
                • SRS
                • Create a spatial column
                • Create a spatial index
                • Spatial data formats
              • Large objects and text types
                • TEXT types
                • Overview
                • BLOB types
              • JSON data types
                • Overview
                • Create a JSON value
                • Query and modify JSON values
                • Convert a JSON data type
              • String types
                • Overview
                • CHAR and VARCHAR
                • BINARY and VARBINARY
            • Expressions
              • Convert data types in expression evaluation
              • Expression syntax
              • Overview
            • Character set and collation
              • Overview
              • Character sets
              • Collations
              • Database-level character sets and collations
              • Table-level character sets and collations
              • Column-level character sets and collations
              • Character sets and collations for character expressions
              • Character sets and collations for client connection
            • Literals
              • Overview
              • Strings
              • NULLs
              • Boolean values
              • Bit values
              • Numbers
              • Datetime values
            • Schema object names
            • User-defined variables
            • Comments
          • Operators
            • Overview
            • Operator precedence
            • Arithmetic operators
            • Bitwise operators
            • Comparison operators
            • Logical operators
            • Assignment operators
            • Date and time operators
            • Concatenation operators
            • BINARY operator
            • CASE conditional operator
          • Sequence pseudocolumns
          • Functions
            • Overview
            • Single-row functions
              • Datetime functions
                • DATE
                • CURRENT_TIMESTAMP
                • TIME
                • SUBTIME
                • UTC_DATE
                • FROM_UNIXTIME
                • DATE_FORMAT
                • DATE_ADD
                • LOCALTIME
                • GET_FORMAT
                • TIME_TO_USEC
                • SECOND
                • TIME_TO_SEC
                • QUARTER
                • USEC_TO_TIME
                • TIME_FORMAT
                • LAST_DAY
                • MICROSECOND
                • SEC_TO_TIME
                • YEARWEEK
                • CURRENT_DATE
                • MINUTE
                • TO_SECONDS
                • TIMESTAMPADD
                • MAKEDATE
                • PERIOD_DIFF
                • YEAR
                • DAYOFYEAR
                • SUBDATE
                • UTC_TIMESTAMP
                • CONVERT_TZ
                • HOUR
                • SYSDATE
                • DAYOFWEEK
                • CURDATE
                • STR_TO_DATE
                • MONTH
                • WEEK
                • TIMEDIFF
                • MAKETIME
                • DAY
                • UNIX_TIMESTAMP
                • WEEKDAY
                • CURTIME
                • ADDTIME
                • DAYOFMONTH
                • EXTRACT
                • TIMESTAMPDIFF
                • DAYNAME
                • UTC_TIME
                • DATE_SUB
                • WEEKOFYEAR
                • CURRENT_TIME
                • DATEDIFF
                • PERIOD_ADD
                • MONTHNAME
                • NOW
                • ADDDATE
                • FROM_DAYS
                • LOCALTIMESTAMP
                • TO_DAYS
                • TIMESTAMP
              • String functions
                • LPAD
                • RTRIM
                • UCASE
                • REPLACE
                • LOWER
                • CONCAT_WS
                • REGEXP_SUBSTR
                • OCTET_LENGTH
                • LTRIM
                • REGEXP_REPLACE
                • REGEXP_LIKE
                • WEIGHT_STRING
                • CONCAT
                • IP2INT
                • BIN
                • RPAD
                • SUBSTRING
                • SPACE
                • FORMAT
                • MAKE_SET
                • REPEAT
                • QUOTE
                • LOCATE
                • FROM_BASE64
                • SOUNDEX
                • INSERT
                • TO_BASE64
                • OCT
                • FIELD
                • LEFT
                • CHARACTER_LENGTH
                • HEX
                • RLIKE
                • POSITION
                • REVERSE
                • STRCMP
                • REGEXP
                • BIT_LENGTH
                • EXPORT_SET
                • INSTR
                • SUBSTR
                • SUBSTRING_INDEX
                • ELT
                • REGEXP_INSTR
                • MID
                • LCASE
                • UPPER
                • ORD
                • TRIM
                • LENGTH
                • CHAR
                • FIND_IN_SET
                • CHAR_LENGTH
                • ASCII
                • RIGHT
                • UNHEX
                • INT2IP
              • Conversion functions
                • CAST
                • CONVERT
                • SCN_TO_TIMESTAMP
                • TIMESTAMP_TO_SCN
              • Mathematical functions
                • RAND
                • GENERATOR
                • ZIPF
                • RANDOM
                • ACOS
                • CONV
                • ABS
                • LOG2
                • TAN
                • EXP
                • LOG10
                • ATAN
                • DEGREES
                • FLOOR
                • ATAN2
                • BIT_COUNT
                • LOG
                • POWER
                • CEIL
                • SIGN
                • PI
                • MOD
                • TRUNCATE
                • RADIANS
                • NEG
                • UNIFORM
                • NORMAL
                • SQRT
                • LN
                • ASIN
                • CRC32
                • RANDSTR
                • CEILING
                • POW
                • SIN
                • ROUND
                • COT
                • COS
              • Comparison functions
                • INTERVAL
                • LEAST
                • GREATEST
                • ISNULL
              • Process control functions
                • IF
                • NULLIF
                • IFNULL
                • ORA_DECODE
                • CASE
            • Aggregate functions
              • VAR_POP
              • GROUPING
              • GROUP_CONCAT
              • STD
              • COUNT
              • VARIANCE
              • STDDEV_POP
              • MIN
              • BIT_AND
              • SUM
              • BIT_XOR
              • AVG
              • STDDEV
              • APPROX_COUNT_DISTINCT
              • VAR_SAMP
              • MAX
              • BIT_OR
              • STDDEV_SAMP
            • 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
              • RANK
              • ROW_NUMBER
              • STD
              • STDDEV
              • STDDEV_POP
              • STDDEV_SAMP
              • SUM
              • VAR_POP
              • VAR_SAMP
              • VARIANCE
            • Encryption functions
              • AES_DECRYPT
              • RANDOM_BYTES
              • DES_ENCRYPT
              • COMPRESS
              • UNCOMPRESS
              • SHA1
              • SHA2
              • AES_ENCRYPT
              • DES_DECRYPT
              • ENCODE
              • UNCOMPRESSED_LENGTH
              • ENCRYPT
              • MD5
              • DECODE
              • SHA
              • VALIDATE_PASSWORD_STRENGTH
            • Information functions
              • SESSION_USER
              • SCHEMA
              • BENCHMARK
              • LAST_INSERT_ID
              • SYSTEM_USER
              • ICU_VERSION
              • CONNECTION_ID
              • COERCIBILITY
              • FOUND_ROWS
              • VERSION
              • CURRENT_USER
              • USER
              • COLLATION
              • CHARSET
              • ROW_COUNT
              • DATABASE
              • OB_VERSION
            • JSON functions
              • Overview
              • JSON_TABLE
              • Search JSON text functions
                • JSON_OVERLAPS
                • JSON_EXTRACT
                • JSON_KEYS
                • JSON_CONTAINS
                • JSON_CONTAINS_PATH
                • MEMBER OF
                • JSON_SEARCH
                • JSON_VALUE
              • Return JSON text property functions
                • JSON_DEPTH
                • JSON_LENGTH
                • JSON_TYPE
                • JSON_VALID
              • Modify JSON text functions
                • JSON_REPLACE
                • JSON_MERGE_PATCH
                • JSON_MERGE
                • JSON_SET
                • JSON_UNQUOTE
                • JSON_REMOVE
                • JSON_INSERT
                • JSON_ARRAY_INSERT
                • JSON_ARRAY_APPEND
                • JSON_MERGE_PRESERVE
              • Create JSON text functions
                • JSON_OBJECT
                • JSON_QUOTE
                • JSON_ARRAY
              • JSON aggregate functions
                • JSON_ARRAYAGG
                • JSON_OBJECTAGG
              • JSON utility functions
                • JSON_PRETTY
                • JSON_STORAGE_SIZE
            • Spatial functions
              • Spatial relation functions
              • Functions that create geometry values
              • Geometry property functions
              • Geometry format conversion functions
              • Spatial operation functions
            • Performance schema functions
              • FORMAT_BYTES
              • FORMAT_PICO_TIME
            • Other functions
              • ANY_VALUE
              • BIN_TO_UUID
              • COALESCE
              • DEFAULT
              • NAME_CONST
              • INET_ATON
              • INET_NTOA
              • INET6_ATON
              • INET6_NTOA
              • IS_IPV4
              • IS_IPV4_COMPAT
              • IS_IPV6
              • IS_UUID
              • NVL
              • UUID_TO_BIN
              • SLEEP
              • UUID
              • UUID_SHORT
              • VALUES
          • Queries and subqueries
            • Joins
            • Overview
            • Subqueries
          • SQL statements
            • General syntax
            • CTE
            • ALTER DATABASE
            • ALTER EXTERNAL TABLE
            • ALTER OUTLINE
            • ALTER SEQUENCE
            • MERGE
            • ALTER TABLE
            • ALTER TABLEGROUP
            • ALTER USER
            • ALTER VIEW
            • ANALYZE
            • CREATE DATABASE
            • CREATE DATABASE LINK
            • CREATE INDEX
            • CREATE EXTERNAL TABLE
            • CREATE OUTLINE
            • DROP RESTORE POINT
            • CREATE SEQUENCE
            • CREATE TABLE
            • CREATE TABLEGROUP
            • CREATE USER
            • CREATE VIEW
            • DEALLOCATE PREPARE
            • DROP DATABASE LINK
            • DELETE
            • DESCRIBE
            • DROP DATABASE
            • DROP INDEX
            • DROP OUTLINE
            • DROP TABLE
            • DROP TABLEGROUP
            • DROP SEQUENCE
            • DROP USER
            • DROP VIEW
            • EXECUTE
            • EXPLAIN
            • FLASHBACK
            • GRANT
            • HELP
            • INSERT
            • KILL
            • LOAD DATA
            • LOCK TABLES
            • MERGE
            • OPTIMIZE
            • PREPARE
            • PURGE
            • PURGE RECYCLEBIN
            • RENAME USER
            • RENAME TABLE
            • REPLACE
            • REVOKE
            • SAVEPOINT
            • SCHEMA
            • SELECT INTO
            • SELECT
              • SELECT statement
              • OVER clause
              • JOIN clause
              • UNION clause
            • SET
            • SET CHARSET
            • SET NAMES
            • SET PASSWORD
            • SET TRANSACTION
            • SHOW
            • TRANSACTION
            • TRUNCATE TABLE
            • UPDATE
            • USE
            • VALUES
          • DDL feature
            • Column type change rules
            • Generated column operations
            • Column operations
            • Foreign key operations
            • Partition operations
            • Overview
            • Online and offline DDL operations
            • Primary key operations
            • Index operations
            • Table operations
        • User tenants (Oracle mode)
          • Introduction to SQL
          • Pseudo columns
            • Sequence pseudocolumns
            • Overview
            • ORA_ROWSCN pseudocolumn
            • ROWNUM pseudocolumn
            • Hierarchical query pseudocolumns
            • ROWID pseudocolumn
          • Basic elements
            • Character sets and collations
            • Built-in data types
              • Rowid data types
              • Any types
              • RAW data type
              • Overview
              • User-defined data types
              • Numeric data types
                • Precedence of numeric data types
                • NUMBER data type
                • FLOAT data type
                • Overview
                • Floating-point numbers
              • Datetime and interval data types
                • INTERVAL YEAR TO MONTH data type
                • TIMESTAMP data type
                • TIMESTAMP WITH TIME ZONE data type
                • DATE data type
                • INTERVAL DAY TO SECOND data type
                • Calculation of dates, timestamps, and intervals
                • TIMESTAMP WITH LOCAL TIME ZONE data type
                • Overview
              • Large object data types
                • CLOB data type
                • BLOB data type
                • Overview
              • JSON data types
                • Create JSON columns
                • Query JSON data
                • Overview
                • Conversion rules for JSON data types
              • Character data types
                • CHAR data type
                • Overview
                • NVARCHAR2 data type
                • NCHAR data type
                • VARCHAR2 data type
                • VARCHAR data type
              • XML data types
                • Query XMLType data
                • XML data definition
                • Convert XMLType data
                • Create an XMLType column
                • Overview
            • Database objects
              • Schema objects
              • Non-schema objects
            • Database naming conventions
              • Suggestions on schema object names
              • Overview
            • Annotations
              • Overview
              • Comments within SQL statements
              • Comments on schema and non-schema objects
              • Hints
                • Overview
                • Hint list
                  • Hints related to access path
                  • Hints related to join orders
                  • Hints related to joins
                  • Hints related to parallel execution
                  • Hints related to query strategy
                  • Hints related to query conversion
                  • Other hints
            • Database object reference methods
              • Reference an attribute or method of an object type
              • Overview
              • Reference partitioned tables and indexes
              • Reference schema objects
              • Reference objects in a remote database
                • Create a DBLink
                • Reference a DBLink
            • Literals
              • Overview
              • Text literals
              • Numeric literals
              • Datetime literals
                • Date literals
                • Timestamp literals
              • Interval literals
            • Data type comparison rules
              • Data type conversion rules
              • Date value comparison rules
              • Overview
              • Security considerations for data conversion
              • Numeric value comparison rules
              • Data type precedence
              • Character value comparison rules
            • Format model
              • Number format models
              • RR datetime format element
              • Datetime format models
              • Overview
              • String-to-date conversion rules
            • NULL value
              • Overview
              • NULLs in comparison conditions
              • NULLs in SQL functions
              • NULLs in conditional expressions
          • Operators
            • Arithmetic operators
            • Set operators
            • COLLATE operator
            • Operator precedence
            • Overview
            • Hierarchical query operators
            • Concatenation operator
          • Functions
            • Overview
            • Single-row functions
              • Numeric functions
                • ABS
                • ACOS
                • ASIN
                • ATAN
                • ATAN2
                • BITAND
                • CEIL
                • COS
                • COSH
                • EXP
                • FLOOR
                • LN
                • GENERATOR
                • 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
                • CONCAT
                • INITCAP
                • CHR
                • NLS_LOWER
                • REPLACE
                • LPAD
                • SUBSTR
                • LTRIM
                • NLSSORT
                • TRANSLATE ... USING
                • TRIM
                • UPPER
                • REGEXP_REPLACE
                • TRANSLATE
                • RTRIM
                • RPAD
                • LOWER
                • NLS_UPPER
                • REGEXP_SUBSTR
              • String functions that return numbers
                • INSTR
                • LENGTH
                • ASCII
                • 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
              • Encoding and decoding functions
                • ORA_HASH
                • DECODE
                • VSIZE
                • DUMP
              • Null value related functions
                • NULLIF
                • NVL2
                • COALESCE
                • NANVL
                • NVL
                • LNNVL
              • Environment and identifier functions
                • SYS_CONTEXT
                • SYS_GUID
                • UID
                • USER
                • USERENV
                • OB_VERSION
              • Hierarchical functions
                • SYS_CONNECT_BY_PATH
              • JSON functions
                • Overview
                • Modify JSON text functions
                  • JSON_MERGEPATCH
                • Create JSON text functions
                  • JSON_ARRAY
                  • JSON_OBJECTAGG
                  • JSON_ARRAYAGG
                  • JSON_OBJECT
                • Query JSON text functions
                  • JSON_VALUE
                  • JSON_QUERY
                  • JSON_EXISTS
                  • JSON_TABLE
                • Validate JSON text functions
                  • JSON_EQUAL
              • XML functions
                • Overview
                • Construct XMLType data functions
                  • XMLAGG
                  • XMLATTRIBUTES
                  • XMLPARSE
                  • XMLELEMENT
                • Modify XMLType data functions
                  • UPDATEXML
                • Query XMLType data functions
                  • EXTRACTVALUE
                  • XMLSERIALIZE
                  • XMLCAST
                  • EXTRACT
            • Aggregate functions
              • WMSYS.WM_CONCAT/WM_CONCAT
              • GROUPING
              • COVAR_POP
              • PERCENTILE_DISC
              • LISTAGG
              • ROLLUP
              • VAR_SAMP
              • STDDEV_POP
              • SUM
              • MAX
              • VAR_POP
              • CORR
              • AVG
              • STDDEV_SAMP
              • STDDEV
              • MIN
              • PERCENT_RANK
              • VARIANCE
              • CUME_DIST
              • PERCENTILE_CONT
              • RANK
              • REGR_(Linear Regression)
              • APPROX_COUNT_DISTINCT
              • MEDIAN
              • KEEP
              • COVAR_SAMP
              • COUNT
              • DENSE_RANK
            • Analysis functions
              • Analytic functions
              • AVG
              • CORR
              • COUNT
              • COVAR_POP
              • COVAR_SAMP
              • CUME_DIST
              • DENSE_RANK
              • FIRST_VALUE
              • KEEP
              • LAG
              • LAST_VALUE
              • LEAD
              • LISTAGG
              • MAX
              • MEDIAN
              • MIN
              • NTILE
              • NTH_VALUE
              • PERCENT_RANK
              • PERCENTILE_CONT
              • PERCENTILE_DISC
              • RANK
              • RATIO_TO_REPORT
              • REGR_(Linear Regression)
              • ROW_NUMBER
              • STDDEV
              • STDDEV_POP
              • STDDEV_SAMP
              • SUM
              • VAR_POP
              • VAR_SAMP
              • VARIANCE
              • WMSYS.WM_CONCAT/WM_CONCAT
          • Expressions
            • Function expressions
            • Datetime expressions
            • Column expressions
            • Compound expressions
            • Scalar subquery expressions
            • Overview
            • Case expressions
            • Expression list
            • Interval expressions
            • CURSOR expressions
            • Type constructor expressions
            • Simple expressions
          • 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
            • DUAL table query
            • Simple query
            • Hierarchical query
            • Subquery
            • Join query
            • Compound query
            • Overview
          • SQL statements
            • DDL
              • ALTER EXTERNAL TABLE
              • ALTER INDEX
              • ALTER KEYSTORE
              • ALTER OUTLINE
              • ALTER PROFILE
              • ALTER ROLE
              • ALTER SEQUENCE
              • ALTER SESSION
              • ALTER SYSTEM FLUSH PLAN CACHE
              • ALTER SYSTEM PARAMETER
              • ALTER TABLE
              • ALTER TABLEGROUP
              • ALTER USER
              • CREATE CONTEXT
              • CREATE DIRECTORY
              • CREATE DATABASE LINK
              • CREATE EXTERNAL TABLE
              • CREATE INDEX
              • CREATE KEYSTORE
              • CREATE OUTLINE
              • CREATE PROFILE
              • CREATE ROLE
              • CREATE SEQUENCE
              • CREATE SYNONYM
              • CREATE TABLE
              • CREATE TABLEGROUP
              • CREATE TABLESPACE
              • CREATE USER
              • CREATE VIEW
              • DROP CONTEXT
              • DROP DATABASE LINK
              • DROP DIRECTORY
              • DROP INDEX
              • DROP OUTLINE
              • DROP PROFILE
              • DROP ROLE
              • DROP SEQUENCE
              • DROP SYNONYM
              • DROP TABLE
              • DROP TABLEGROUP
              • DROP TABLESPACE
              • DROP USER
              • DROP VIEW
              • RENAME
              • TRUNCATE TABLE
              • ALTER SYSTEM MAJOR FREEZE
            • DML
              • UPDATE
              • MERGE
              • PURGE
              • EXPLAIN
              • INSERT
              • DELETE
              • SELECT
                • Set-based SELECT
                • SIMPLE SELECT
                • WITH clause
            • DCL
              • SET PASSWORD
              • TRANSACTION
              • GRANT
              • SHRINK
              • SET VARIABLE
              • SET NAMES
              • AUDIT
              • ANALYZE
              • FLASHBACK TABLE BEFORE DROP
              • ALTER SYSTEM KILL SESSION
              • LOAD DATA
              • LOCK TABLE
              • COMMENT
              • COMMIT
              • REVOKE
              • SAVEPOINT
              • KILL
              • ROLLBACK
              • SHOW
              • SET ROLE
          • 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
      • PL reference
        • PL reference (Oracle mode)
          • Reserved PL keywords
          • DDL operations on stored PL units
            • Overview
            • DROP FUNCTION
            • CREATE PACKAGE BODY
            • CREATE TRIGGER
            • DROP TYPE BODY
            • CREATE FUNCTION
            • CREATE PACKAGE
            • CREATE PROCEDURE
            • DROP TYPE
            • DROP PROCEDURE
            • DROP TRIGGER
            • ALTER PACKAGE
            • CREATE TYPE
            • DROP PACKAGE
            • ALTER TRIGGER
            • ALTER PROCEDURE
            • CREATE TYPE BODY
            • ALTER TYPE
            • ALTER FUNCTION
          • PL static SQL
            • Transaction processing and control
            • Overview
            • Cursors
              • Overview
              • Cursor attributes
              • Implicit cursors
              • Explicit cursors
              • Cursor variables
              • Traverse cursor data by using the FOR loop
              • Modify and drop a cursor
            • Autonomous transactions
              • Overview
              • Control an autonomous transaction
              • Autonomous triggers
              • Call autonomous functions from SQL statements
          • PL stored procedures and functions
            • Overview
            • Create a stored procedure
            • Create a function
            • Manage stored procedures and functions
            • Privilege control
            • Pipeline functions
              • Overview
              • Application
              • Create a pipelined function
            • User-defined functions
              • Use user-defined aggregate functions
              • Overview
              • Interface for user-defined aggregate functions
              • Create user-defined aggregate functions
            • Collection of stored procedure information and its impact on parallel execution of SQL statements
            • PL DBLink
          • PL system package (Oracle mode)
            • Overview
            • DBMS_APPLICATION_INFO
              • Overview
              • READ_CLIENT_INFO
              • READ_MODULE
              • SET_ACTION
              • SET_CLIENT_INFO
              • SET_MODULE
            • DBMS_AUDIT_MGMT
              • CLEAN_AUDIT_TRAIL
              • SET_LAST_ARCHIVE_TIMESTAMP
              • SET_PURGE_JOB_STATUS
              • Overview
              • CREATE_PURGE_JOB
              • DROP_PURGE_JOB
            • 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
              • RUN
              • Overview
              • SUBMIT
              • INTERVAL
              • BROKEN
              • ZONE
              • WHAT
              • USER_EXPORT
              • REMOVE
              • NEXT_DATE
              • CHANGE
            • DBMS_LOB
              • Overview
              • APPEND
              • CLOSE
              • COPY
              • CREATETEMPORARY
              • ERASE
              • FREETEMPORARY
              • GETLENGTH
              • ISOPEN
              • INSTR
              • ISTEMPORARY
              • OPEN
              • READ
              • SUBSTR
              • TRIM
              • WRITE
              • WRITEAPPEND
            • DBMS_LOCK
              • REQUEST
              • SLEEP
              • ALLOCATE_UNIQUE
              • ALLOCATE_UNIQUE_AUTONOMOUS
              • Overview
            • DBMS_METADATA
              • Overview
              • GET_DDL
            • DBMS_OUTPUT
              • Overview
              • docslug#/oceanbase-database/oceanbase-database/V4.0.0/DISABLE
              • docslug#/oceanbase-database/oceanbase-database/V4.0.0/ENABLE
              • docslug#/oceanbase-database/oceanbase-database/V4.0.0/GET_LINE
              • docslug#/oceanbase-database/oceanbase-database/V4.0.0/GET_LINES
              • docslug#/oceanbase-database/oceanbase-database/V4.0.0/NEW_LINE
              • docslug#/oceanbase-database/oceanbase-database/V4.0.0/PUT
              • docslug#/oceanbase-database/oceanbase-database/V4.0.0/PUT_LINE
            • DBMS_PLAN_CACHE
              • docslug#/oceanbase-database/oceanbase-database/V4.0.0/PURGE
              • Overview
            • DBMS_RANDOM
              • TERMINATE
              • STRING
              • Overview
              • RANDOM
              • NORMAL
              • SEED
              • INITIALIZE
              • VALUE
            • DBMS_RESOURCE_MANAGER
              • CREATE_PLAN
              • CREATE_PLAN_DIRECTIVE
              • DELETE_CONSUMER_GROUP
              • DELETE_PLAN
              • Overview
              • UPDATE_PLAN_DIRECTIVE
              • CREATE_CONSUMER_GROUP
              • DELETE_PLAN_DIRECTIVE
              • SET_CONSUMER_GROUP_MAPPING
            • DBMS_SCHEDULER
              • Overview
              • SET_ATTRIBUTE
              • DROP_JOB
              • DISABLE
              • SET_JOB_ARGUMENT_VALUE
              • GENERATE_JOB_NAME
              • ENABLE
              • RUN_JOB
              • DROP_PROGRAM
              • CREATE_PROGRAM
              • DEFINE_PROGRAM_ARGUMENT
              • CREATE_JOB
            • DBMS_SESSION
              • SET_CONTEXT
              • CLEAR_CONTEXT
              • SET_IDENTIFIER
              • CLEAR_IDENTIFIER
              • CLEAR_ALL_CONTEXT
              • Overview
              • RESET_PACKAGE
            • DBMS_SQL
              • DEFINE_ARRAY
              • EXECUTE_AND_FETCH
              • DESCRIBE_COLUMNS
              • Overview
              • BIND_VARIABLE
              • OPEN_CURSOR
              • EXECUTE
              • COLUMN_VALUE
              • CLOSE_CURSOR
              • LAST_ERROR_POSITION
              • IS_OPEN
              • DEFINE_COLUMN
              • PARSE
              • FETCH_ROWS
            • DBMS_STATS
              • EXPORT_SCHEMA_STATS
              • LOCK_SCHEMA_STATS
              • GATHER_INDEX_STATS
              • RESET_PARAM_DEFAULTS
              • IMPORT_TABLE_STATS
              • IMPORT_COLUMN_STATS
              • IMPORT_SCHEMA_STATS
              • EXPORT_INDEX_STATS
              • IMPORT_INDEX_STATS
              • SET_GLOBAL_PREFS
              • UNLOCK_PARTITION_STATS
              • RESET_GLOBAL_PREF_DEFAULTS
              • SET_PARAM
              • LOCK_PARTITION_STATS
              • FLUSH_DATABASE_MONITORING_INFO
              • RESTORE_TABLE_STATS
              • UNLOCK_TABLE_STATS
              • DELETE_SCHEMA_STATS
              • EXPORT_COLUMN_STATS
              • GATHER_TABLE_STATS
              • PURGE_STATS
              • DELETE_TABLE_STATS
              • DELETE_TABLE_PREFS
              • GET_PREFS
              • SET_INDEX_STATS
              • DELETE_INDEX_STATS
              • DELETE_COLUMN_STATS
              • UNLOCK_SCHEMA_STATS
              • SET_TABLE_STATS
              • CREATE_STAT_TABLE
              • ALTER_STATS_HISTORY_RETENTION
              • DELETE_SCHEMA_PREFS
              • RESTORE_SCHEMA_STATS
              • SET_COLUMN_STATS
              • Overview
              • DROP_STAT_TABLE
              • SET_SCHEMA_PREFS
              • GATHER_SCHEMA_STATS
              • SET_TABLE_PREFS
              • GET_PARAM
              • EXPORT_TABLE_STATS
              • GET_STATS_HISTORY_AVAILABILITY
              • LOCK_TABLE_STATS
              • GET_STATS_HISTORY_RETENTION
            • DBMS_UDR
              • DISABLE_RULE
              • ENABLE_RULE
              • REMOVE_RULE
              • Overview
              • CREATE_RULE
            • DBMS_UTILITY
              • IS_CLUSTER_DATABASE
              • OLD_CURRENT_SCHEMA
              • GET_SQL_HASH
              • FORMAT_ERROR_BACKTRACE
              • DB_VERSION
              • FORMAT_ERROR_STACK
              • GET_ENDIANNESS
              • ACTIVE_INSTANCES
              • Overview
              • GET_HASH_VALUE
              • GET_PARAMETER_VALUE
              • PORT_STRING
              • TABLE_TO_COMMA
              • NAME_RESOLVE
              • COMMA_TO_TABLE
              • GET_TIME
              • IS_BIT_SET
              • OLD_CURRENT_USER
              • FORMAT_CALL_STACK
              • NAME_TOKENIZE
              • CURRENT_INSTANCE
            • DBMS_WORKLOAD_REPOSITORY
              • Overview
              • ASH_REPORT
            • DBMS_XA
              • DBMS_XA_XID object type
              • XA_RECOVER
              • DBMS_XA constants
              • XA_PREPARE
              • XA_SETTIMEOUT
              • XA_GETLASTOER
              • XA_START
              • XA_END
              • XA_ROLLBACK
              • XA_FORGET
              • Overview
              • DIST_TXN_SYNC
              • XA_COMMIT
            • DBMS_XMLGEN
              • Overview
              • CONVERT
            • DBMS_XPLAN
              • Overview
              • DISPLAY_ACTIVE_SESSION_PLAN
              • DISPLAY_CURSOR
              • DISPLAY
              • DISABLE_OPT_TRACE
              • DISPLAY_SQL_PLAN_BASELINE
              • ENABLE_OPT_TRACE
              • SET_OPT_TRACE_PARAMETER
            • ODCIConst
              • ODCIStatsOptions.Options
              • ODCIIndexInfo.IndexParaDegree
              • ODCIEnv.CallProperty
              • Overview
              • ODCIIndexInfo.IndexInfoFlags
              • ODCIIndexAlter
              • ODCIStatsOptions.Flags
              • ScnFlg
              • ODCIIndexAlter parameter alter_option
              • ODCIArgDesc.ArgType
              • ODCIPredInfo.Flags
              • ODCIQueryInfo.Flags
              • Return Status
              • ODCIEnv.Envflags
            • UTL_ENCODE
              • Overview
              • BASE64_DECODE
              • BASE64_ENCODE
            • UTL_FILE
              • Overview
              • FCLOSE
              • FFLUSH
              • FOPEN
              • FGETPOS
              • FREMOVE
              • FRENAME
              • FSEEK
              • NEW_LINE
              • GET_LINE
              • PUT
              • PUT_LINE
            • UTL_I18N
              • Overview
              • RAW_TO_CHAR
              • STRING_TO_RAW
            • UTL_RAW
              • BIT_AND
              • CAST_TO_VARCHAR2
              • CAST_TO_BINARY_FLOAT
              • Overview
              • CAST_TO_RAW
              • CAST_FROM_BINARY_DOUBLE
              • BIT_OR
              • REVERSE
              • CAST_FROM_BINARY_FLOAT
              • CAST_TO_BINARY_DOUBLE
              • COMPARE
              • CONCAT
              • CAST_FROM_BINARY_INTEGER
              • BIT_XOR
              • CAST_FROM_NUMBER
              • CAST_TO_BINARY_INTEGER
              • SUBSTR
              • BIT_COMPLEMENT
              • COPIES
              • LENGTH
              • CAST_TO_NUMBER
            • ANYDATA TYPE
              • ENDCREATE member procedure
              • SET* member procedures
              • GETTYPE member function
              • Overview
              • GET* member functions
              • PIECEWISE member procedure
              • BEGINCREATE static procedure
              • GETTYPENAME member function
            • XMLType
              • CREATEXML
              • XMLTYPE
              • GETSTRINGVAL
              • Overview
              • TRANSFORM
              • GETCLOBVAL
          • PL triggers
            • Query trigger information
            • INSTEAD OF DML trigger
            • Create a DML trigger
            • Overview
            • Disable or enable a trigger
            • Modify and drop a trigger
            • Compound DML trigger
          • PL label security package
            • Overview
            • 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
            • SA_LABEL_ADMIN label management package
              • SA_LABEL_ADMIN.ALTER_LABEL
              • SA_LABEL_ADMIN.CREATE_LABEL
              • SA_LABEL_ADMIN.DROP_LABEL
              • Overview
            • SA_POLICY_ADMIN policy management package
              • Overview
              • SA_POLICY_ADMIN.APPLY_TABLE_POLICY
              • SA_POLICY_ADMIN.DISABLE_TABLE_POLICY
              • SA_POLICY_ADMIN.REMOVE_TABLE_POLICY
              • SA_POLICY_ADMIN.ENABLE_TABLE_POLICY
            • SA_USER_ADMIN user label management package
              • SA_USER_ADMIN.SET_LEVELS
              • Overview
            • SA_SYSDBA policy management package
              • Overview
              • SA_SYSDBA.ALTER_POLICY
              • SA_SYSDBA.DROP_POLICY
              • SA_SYSDBA.CREATE_POLICY
            • SA_COMPONENTS label component package
              • Overview
              • SA_COMPONENTS.ALTER_LEVEL
              • SA_COMPONENTS.CREATE_LEVEL
              • SA_COMPONENTS.DROP_LEVEL
          • PL collections and records
            • Overview
            • Collections
            • Associative arrays
            • Varrays
            • Nested tables
            • Collection constructor function
            • Collection methods
              • COUNT method
              • EXISTS method
              • EXTEND method
              • FIRST and LAST methods
              • Overview
              • DELETE method
              • TRIM method
              • LIMIT method
              • PRIOR and NEXT methods
            • Records
            • Insert records into a table and update a table by using records
            • Create and call a subprogram with record type parameters
          • 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 language basics
            • Character sets
            • Lexical units
            • Declaration
            • Quote identifiers
            • Scope and visibility of identifiers
            • Assign values
            • Expressions
            • PL blocks
            • Subprograms
            • Error-reporting functions
          • PL exception handling
            • Exception handling processes
            • Exception types
            • Overview
            • Compile-Time alerts
          • PL process control
            • Overview
            • Sequential control
            • Loop control
            • Conditional control
          • PL dynamic SQL
            • DBMS_SQL system package
            • Execute dynamic SQL statements
            • Overview
          • PL packages
            • Create a program package
            • Manage program packages
            • Definition of the PL environment by the STANDARD package
            • Overview
            • Overloaded programs in a package
        • PL reference (MySQL mode)
          • Syntax of PL stored programs
          • PL stored procedures
            • Overview
            • Variables in stored programs
            • Stored procedures
            • Stored functions
            • Triggers
            • Limitations on stored programs
          • PL cursors
            • Overview
            • Cursor execution process
            • Limitations on server cursors
          • PL conditional control statements
            • CASE
            • IF
            • ITERATE
            • LEAVE
            • LOOP
            • REPEAT
            • RETURN
            • WHILE
          • PL data manipulation statements
            • CALL
            • DO
          • PL data definition statements
            • ALTER FUNCTION
            • ALTER PROCEDURE
            • CREATE FUNCTION
            • CREATE PROCEDURE
            • CREATE TRIGGER
            • DROP FUNCTION
            • DROP PROCEDURE
            • DROP TRIGGER
          • PL database management statements
            • SHOW TRIGGERS
            • SHOW CREATE TRIGGER
            • SHOW FUNCTION STATUS
            • SHOW CREATE FUNCTION
            • SHOW PROCEDURE STATUS
            • SHOW CREATE PROCEDURE
          • PL related dictionary views
            • INFORMATION_SCHEMA ROUTINES
            • INFORMATION_SCHEMA PARAMETERS
            • INFORMATION_SCHEMA TRIGGERS
          • PL exception handling
            • Exception handling and OUT/INOUT parameters
            • DECLARE ... CONDITION
            • Limitations on exception handling
            • DECLARE ... HANDLER
            • RESIGNAL
            • Diagnostics area
            • GET DIAGNOSTICS
            • Overview
            • Effective scope of an exception handler
            • SIGNAL
          • PL system packages
            • Overview
            • DBMS_RESOURCE_MANAGER
              • CREATE_PLAN
              • DELETE_PLAN_DIRECTIVE
              • DELETE_CONSUMER_GROUP
              • SET_CONSUMER_GROUP_MAPPING
              • CREATE_CONSUMER_GROUP
              • DELETE_PLAN
              • Overview
              • CREATE_PLAN_DIRECTIVE
              • UPDATE_PLAN_DIRECTIVE
            • DBMS_STATS
              • GET_PREFS
              • CREATE_STAT_TABLE
              • DROP_STAT_TABLE
              • SET_TABLE_PREFS
              • GET_STATS_HISTORY_AVAILABILITY
              • GATHER_SCHEMA_STATS
              • SET_TABLE_STATS
              • DELETE_COLUMN_STATS
              • UNLOCK_SCHEMA_STATS
              • SET_PARAM
              • IMPORT_SCHEMA_STATS
              • RESET_PARAM_DEFAULTS
              • GET_PARAM
              • DELETE_TABLE_PREFS
              • GET_STATS_HISTORY_RETENTION
              • DELETE_TABLE_STATS
              • DELETE_INDEX_STATS
              • EXPORT_INDEX_STATS
              • FLUSH_DATABASE_MONITORING_INFO
              • DELETE_SCHEMA_STATS
              • UNLOCK_PARTITION_STATS
              • Overview
              • SET_GLOBAL_PREFS
              • ALTER_STATS_HISTORY_RETENTION
              • SET_INDEX_STATS
              • RESTORE_TABLE_STATS
              • IMPORT_TABLE_STATS
              • UNLOCK_TABLE_STATS
              • EXPORT_TABLE_STATS
              • IMPORT_COLUMN_STATS
              • DELETE_SCHEMA_PREFS
              • IMPORT_INDEX_STATS
              • LOCK_TABLE_STATS
              • SET_SCHEMA_PREFS
              • GATHER_INDEX_STATS
              • RESET_GLOBAL_PREF_DEFAULTS
              • EXPORT_COLUMN_STATS
              • LOCK_SCHEMA_STATS
              • RESTORE_SCHEMA_STATS
              • EXPORT_SCHEMA_STATS
              • PURGE_STATS
              • GATHER_TABLE_STATS
              • LOCK_PARTITION_STATS
              • SET_COLUMN_STATS
            • DBMS_XPLAN
              • DISPLAY_ACTIVE_SESSION_PLAN
              • DISABLE_OPT_TRACE
              • DISPLAY
              • DISPLAY_CURSOR
              • ENABLE_OPT_TRACE
              • SET_OPT_TRACE_PARAMETER
              • Overview
              • DISPLAY_SQL_PLAN_BASELINE
            • DBMS_UDR
              • CREATE_RULE
              • DISABLE_RULE
              • Overview
              • ENABLE_RULE
              • REMOVE_RULE
            • DBMS_WORKLOAD_REPOSITORY
              • Overview
              • ASH_REPORT
              • CREATE_SNAPSHOT
              • DROP_SNAPSHOT_RANGE
              • MODIFY_SNAPSHOT_SETTINGS
          • Reserved and non-reserved PL keywords
        • What is PL
          • PL architecture
          • Overview
          • Main features of PL
      • SQL specifications and practices
        • Limitations on writing SQL statements
        • SQL writing specifications
          • Transactions
          • Table scan
          • SELECT statements
          • Multi-table join statements
          • Cache
          • Hint
          • DML statements
          • Others
        • SQL statement examples
          • Implicit data type conversion
          • JOIN tables
          • Weak consistency read
          • Pagination queries
    • System views
      • Overview of system views
      • Changes in views in OceanBase Database V3.x and V4.x
      • Common statistics events
      • General wait events
      • Overview
      • SYS tenant views
        • Dictionary views
          • oceanbase.DBA_OB_SERVER_JOBS
          • oceanbase.DBA_OB_SERVERS
          • 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_TENANT_JOBS
          • oceanbase.DBA_OB_TENANTS
          • oceanbase.DBA_OB_UNIT_JOBS
          • oceanbase.DBA_OB_UNIT_CONFIGS
          • oceanbase.DBA_OB_UNITS
          • oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION
          • oceanbase.DBA_OB_ZONES
          • oceanbase.DBA_OBJECTS
          • oceanbase.DBA_PART_INDEXES
          • oceanbase.DBA_PART_KEY_COLUMNS
          • oceanbase.DBA_PART_TABLES
          • oceanbase.DBA_OB_SEQUENCE_OBJECTS
          • oceanbase.DBA_SUBPART_KEY_COLUMNS
          • oceanbase.DBA_SUBPARTITION_TEMPLATES
          • oceanbase.DBA_TAB_PARTITIONS
          • oceanbase.DBA_TAB_SUBPARTITIONS
          • oceanbase.CDB_IND_COLUMNS
          • oceanbase.CDB_IND_PARTITIONS
          • oceanbase.CDB_IND_SUBPARTITIONS
          • oceanbase.CDB_INDEXES
          • oceanbase.DBA_IND_PARTITIONS
          • oceanbase.DBA_IND_SUBPARTITIONS
          • oceanbase.DBA_OB_DATABASES
          • oceanbase.DBA_OB_LS_LOCATIONS
          • oceanbase.DBA_OB_MAJOR_COMPACTION
          • oceanbase.DBA_OB_RESOURCE_POOLS
          • oceanbase.DBA_OB_ROOTSERVICE_EVENT_HISTORY
          • oceanbase.CDB_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.CDB_OB_DATABASES
          • oceanbase.CDB_OB_LS_LOCATIONS
          • oceanbase.CDB_OB_MAJOR_COMPACTION
          • oceanbase.CDB_OB_RESTORE_HISTORY
          • oceanbase.CDB_OB_RESTORE_PROGRESS
          • oceanbase.CDB_OB_TABLEGROUP_PARTITIONS
          • oceanbase.CDB_OB_TABLEGROUP_SUBPARTITIONS
          • oceanbase.CDB_OB_TABLEGROUP_TABLES
          • oceanbase.CDB_OB_TABLEGROUPS
          • oceanbase.CDB_OB_TABLET_REPLICAS
          • oceanbase.CDB_OB_TABLET_TO_LS
          • oceanbase.CDB_OB_ZONE_MAJOR_COMPACTION
          • oceanbase.CDB_OBJECTS
          • oceanbase.CDB_PART_INDEXES
          • oceanbase.CDB_PART_KEY_COLUMNS
          • oceanbase.CDB_PART_TABLES
          • 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_OB_BACKUP_SET_FILES
          • oceanbase.DBA_OB_BACKUP_SET_FILES
          • oceanbase.CDB_OB_BACKUP_JOBS
          • oceanbase.DBA_OB_BACKUP_JOBS
          • oceanbase.CDB_OB_BACKUP_JOB_HISTORY
          • oceanbase.DBA_OB_BACKUP_JOB_HISTORY
          • oceanbase.CDB_OB_BACKUP_TASKS
          • oceanbase.DBA_OB_BACKUP_TASKS
          • oceanbase.CDB_OB_BACKUP_TASK_HISTORY
          • oceanbase.DBA_OB_BACKUP_TASK_HISTORY
          • oceanbase.DBA_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.DBA_OB_RESTORE_PROGRESS
          • oceanbase.DBA_OB_RESTORE_HISTORY
          • oceanbase.CDB_OB_ARCHIVE_DEST
          • oceanbase.DBA_OB_ARCHIVE_DEST
          • oceanbase.CDB_OB_ARCHIVELOG
          • oceanbase.DBA_OB_ARCHIVELOG
          • oceanbase.CDB_OB_ARCHIVELOG_SUMMARY
          • oceanbase.DBA_OB_ARCHIVELOG_SUMMARY
          • oceanbase.CDB_OB_BACKUP_PARAMETER
          • oceanbase.DBA_OB_BACKUP_PARAMETER
          • oceanbase.DBA_OB_OUTLINE_CONCURRENT_HISTORY
          • oceanbase.DBA_OB_OUTLINES
          • oceanbase.DBA_OB_CONCURRENT_LIMIT_SQL
          • oceanbase.CDB_OB_SYS_VARIABLES
          • oceanbase.CDB_OB_BACKUP_DELETE_JOBS
          • oceanbase.DBA_OB_BACKUP_DELETE_JOBS
          • oceanbase.CDB_OB_BACKUP_DELETE_JOB_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_JOB_HISTORY
          • oceanbase.CDB_OB_BACKUP_DELETE_TASKS
          • oceanbase.DBA_OB_BACKUP_DELETE_TASKS
          • oceanbase.CDB_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.CDB_OB_BACKUP_STORAGE_INFO
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO
          • oceanbase.CDB_OB_BACKUP_STORAGE_INFO_HISTORY
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO_HISTORY
          • oceanbase.CDB_OB_BACKUP_DELETE_POLICY
          • oceanbase.DBA_OB_BACKUP_DELETE_POLICY
          • oceanbase.CDB_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.DBA_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.CDB_OB_COLUMN_CHECKSUM_ERROR_INFO
          • oceanbase.CDB_OB_TABLET_CHECKSUM_ERROR_INFO
          • oceanbase.DBA_TAB_STATISTICS
          • oceanbase.DBA_TAB_COL_STATISTICS
          • oceanbase.DBA_PART_COL_STATISTICS
          • oceanbase.DBA_SUBPART_COL_STATISTICS
          • oceanbase.DBA_TAB_HISTOGRAMS
          • oceanbase.DBA_PART_HISTOGRAMS
          • oceanbase.DBA_SUBPART_HISTOGRAMS
          • oceanbase.DBA_TAB_STATS_HISTORY
          • oceanbase.DBA_SCHEDULER_JOBS
          • oceanbase.DBA_IND_STATISTICS
          • oceanbase.DBA_TAB_MODIFICATIONS
          • oceanbase.DBA_SQL_PLAN_BASELINES
          • oceanbase.DBA_SQL_MANAGEMENT_CONFIG
          • information_schema.QUERY_RESPONSE_TIME
          • oceanbase.CDB_OB_LS
          • oceanbase.DBA_OB_LS
          • oceanbase.CDB_OB_TABLE_LOCATIONS
          • oceanbase.DBA_OB_TABLE_LOCATIONS
          • oceanbase.DBA_OB_SERVER_EVENT_HISTORY
          • oceanbase.CDB_OB_FREEZE_INFO
          • oceanbase.DBA_OB_FREEZE_INFO
          • oceanbase.DBA_OB_LS_REPLICA_TASKS
          • oceanbase.CDB_OB_LS_REPLICA_TASKS
          • oceanbase.DBA_OB_AUTO_INCREMENT
          • oceanbase.CDB_OB_AUTO_INCREMENT
          • oceanbase.DBA_SEQUENCES
          • oceanbase.DBA_SCHEDULER_WINDOWS
          • oceanbase.DBA_OB_USERS
          • oceanbase.CDB_OB_USERS
          • oceanbase.DBA_OB_DATABASE_PRIVILEGE
          • oceanbase.CDB_OB_DATABASE_PRIVILEGE
          • oceanbase.DBA_OB_USER_DEFINED_RULES
          • oceanbase.CDB_OB_LS_LOG_ARCHIVE_PROGRESS
          • oceanbase.DBA_OB_LS_LOG_ARCHIVE_PROGRESS
          • oceanbase.DBA_OB_ARBITRATION_SERVICE
          • oceanbase.CDB_OB_LS_ARB_REPLICA_TASKS
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASKS
          • oceanbase.CDB_OB_LS_ARB_REPLICA_TASK_HISTORY
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASK_HISTORY
          • oceanbase.DBA_OB_CLUSTER_EVENT_HISTORY
          • oceanbase.DBA_OB_RSRC_IO_DIRECTIVES
          • oceanbase.DBA_RSRC_PLANS
          • oceanbase.DBA_RSRC_PLAN_DIRECTIVES
          • oceanbase.DBA_RSRC_GROUP_MAPPINGS
          • oceanbase.DBA_RSRC_CONSUMER_GROUPS
          • oceanbase.DBA_OB_DATA_DICTIONARY_IN_LOG
          • oceanbase.CDB_OB_DATA_DICTIONARY_IN_LOG
          • oceanbase.DBA_OB_TASK_OPT_STAT_GATHER_HISTORY
          • oceanbase.DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY
          • oceanbase.CDB_OB_LOG_RESTORE_SOURCE
          • oceanbase.DBA_OB_LOG_RESTORE_SOURCE
          • oceanbase.DBA_OB_TABLE_STAT_STALE_INFO
          • oceanbase.DBA_OB_EXTERNAL_TABLE_FILES
          • oceanbase.ALL_OB_EXTERNAL_TABLE_FILES
          • oceanbase.CDB_OB_EXTERNAL_TABLE_FILES
          • oceanbase.DBA_OB_BALANCE_JOBS
          • oceanbase.CDB_OB_BALANCE_JOBS
          • oceanbase.DBA_OB_BALANCE_JOB_HISTORY
          • oceanbase.CDB_OB_BALANCE_JOB_HISTORY
          • oceanbase.DBA_OB_BALANCE_TASKS
          • oceanbase.DBA_OB_BALANCE_TASK_HISTORY
          • oceanbase.CDB_OB_BALANCE_TASKS
          • oceanbase.CDB_OB_BALANCE_TASK_HISTORY
          • oceanbase.DBA_OB_TRANSFER_TASKS
          • oceanbase.DBA_OB_TRANSFER_TASK_HISTORY
          • oceanbase.CDB_OB_TRANSFER_TASKS
          • oceanbase.CDB_OB_TRANSFER_TASK_HISTORY
          • oceanbase.CDB_OB_ACCESS_POINT
          • oceanbase.DBA_OB_ACCESS_POINT
          • oceanbase.DBA_DB_LINKS
          • oceanbase.CDB_OB_LS_HISTORY
          • oceanbase.DBA_OB_LS_HISTORY
          • oceanbase.CDB_OB_TENANT_EVENT_HISTORY
          • oceanbase.DBA_OB_TENANT_EVENT_HISTORY
          • oceanbase.DBA_WR_SNAPSHOT
          • oceanbase.CDB_WR_SNAPSHOT
          • oceanbase.DBA_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.CDB_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.DBA_WR_STATNAME
          • oceanbase.CDB_WR_STATNAME
          • oceanbase.DBA_WR_SYSSTAT
          • oceanbase.CDB_WR_SYSSTAT
          • oceanbase.DBA_WR_CONTROL
          • oceanbase.CDB_WR_CONTROL
          • oceanbase.CDB_OB_RECOVER_TABLE_JOBS
          • oceanbase.DBA_OB_RECOVER_TABLE_JOBS
          • oceanbase.CDB_OB_IMPORT_TABLE_JOBS
          • oceanbase.DBA_OB_IMPORT_TABLE_JOBS
          • oceanbase.CDB_OB_IMPORT_TABLE_TASKS
          • oceanbase.DBA_OB_IMPORT_TABLE_TASKS
          • oceanbase.CDB_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.DBA_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.CDB_OB_IMPORT_TABLE_JOB_HISTORY
          • oceanbase.DBA_OB_IMPORT_TABLE_JOB_HISTORY
          • oceanbase.CDB_OB_IMPORT_TABLE_TASK_HISTORY
          • oceanbase.DBA_OB_IMPORT_TABLE_TASK_HISTORY
          • oceanbase.CDB_OB_KV_TTL_TASKS
          • oceanbase.CDB_OB_KV_TTL_TASK_HISTORY
          • oceanbase.DBA_OB_KV_TTL_TASKS
          • oceanbase.DBA_OB_KV_TTL_TASK_HISTORY
        • Performance views
          • GV$OB_COMPACTION_SUGGESTIONS
          • GV$OB_UNITS
          • GV$OB_COMPACTION_PROGRESS
          • GV$OB_PARAMETERS
          • V$OB_TENANT_MEMORY
          • GV$OB_MEMORY
          • V$OB_PLAN_CACHE_PLAN_STAT
          • V$OB_ENCRYPTED_TABLES
          • GV$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_RPC_INCOMING
          • V$OB_TABLET_COMPACTION_HISTORY
          • GV$OB_SQL_AUDIT
          • V$OB_ARBITRATION_SERVICE_STATUS
          • V$SYSSTAT
          • V$OB_TENANT_RUNTIME_INFO
          • GV$OB_PLAN_CACHE_STAT
          • V$OB_PLAN_CACHE_PLAN_EXPLAIN
          • V$SESSION_WAIT_HISTORY
          • V$OB_TRANSACTION_PARTICIPANTS
          • V$OB_IO_BENCHMARK
          • GV$OB_PLAN_CACHE_PLAN_STAT
          • GV$LATCH
          • GV$ACTIVE_SESSION_HISTORY
          • V$OB_IO_CALIBRATION_STATUS
          • GV$OB_KVCACHE
          • GV$OB_PX_WORKER_STAT
          • V$OB_SERVERS
          • V$OB_LOCKS
          • V$OB_SQL_PLAN
          • V$OB_ARBITRATION_MEMBER_INFO
          • GV$OB_OPT_STAT_GATHER_MONITOR
          • GV$OB_MEMSTORE_INFO
          • GV$OB_ARBITRATION_MEMBER_INFO
          • GV$OB_PX_P2P_DATAHUB
          • GV$SQL_WORKAREA
          • V$STATNAME
          • GV$OB_IO_BENCHMARK
          • V$OB_PX_TARGET_MONITOR
          • GV$OB_TENANT_RUNTIME_INFO
          • V$OB_RPC_INCOMING
          • GV$OB_SQL_WORKAREA_MEMORY_INFO
          • GV$OB_IO_CALIBRATION_STATUS
          • GV$OB_LOCKS
          • GV$SESSION_EVENT
          • V$LATCH
          • V$OB_MERGE_INFO
          • V$OB_PS_STAT
          • GV$OB_PS_ITEM_INFO
          • V$OB_PX_P2P_DATAHUB
          • GV$OB_MEMSTORE
          • V$OB_RPC_OUTGOING
          • V$OB_SQL_WORKAREA_MEMORY_INFO
          • V$SQL_WORKAREA_HISTOGRAM
          • V$OB_SSTABLES
          • V$OB_COMPACTION_SUGGESTIONS
          • V$SESSTAT
          • GV$OB_PX_TARGET_MONITOR
          • V$OB_DTL_INTERM_RESULT_MONITOR
          • GV$SQL_WORKAREA_HISTOGRAM
          • GV$SQL_PLAN_MONITOR
          • GV$OB_COMPACTION_DIAGNOSE_INFO
          • GV$OB_DTL_INTERM_RESULT_MONITOR
          • GV$OB_FLT_TRACE_CONFIG
          • V$OB_PLAN_CACHE_STAT
          • V$OB_COMPACTION_PROGRESS
          • GV$OB_PLAN_CACHE_PLAN_EXPLAIN
          • V$OB_KVCACHE
          • V$SQL_WORKAREA_ACTIVE
          • GV$SESSION_WAIT
          • V$SESSION_WAIT
          • V$OB_MEMSTORE_INFO
          • GV$OB_LOG_STAT
          • V$OB_PS_ITEM_INFO
          • GV$SYSSTAT
          • V$OB_TABLET_COMPACTION_PROGRESS
          • V$OB_TIMESTAMP_SERVICE
          • V$OB_SERVER_SCHEMA_INFO
          • V$OB_THREAD
          • V$OB_OPT_STAT_GATHER_MONITOR
          • V$SESSION_LONGOPS
          • V$OB_PARAMETERS
          • GV$OB_SERVER_SCHEMA_INFO
          • V$OB_COMPACTION_DIAGNOSE_INFO
          • GV$SESSION_WAIT_HISTORY
          • GV$OB_SQL_PLAN
          • V$ACTIVE_SESSION_HISTORY
          • V$RSRC_PLAN
          • GV$OB_PS_STAT
          • V$OB_LOG_STAT
          • V$OB_UNITS
          • V$OB_ARCHIVE_DEST_STATUS
          • V$OB_MEMSTORE
          • GV$SESSTAT
          • GV$OB_TENANT_MEMORY
          • GV$OB_TABLET_COMPACTION_HISTORY
          • V$SQL_MONITOR_STATNAME
          • V$EVENT_NAME
          • GV$OB_ARBITRATION_SERVICE_STATUS
          • GV$OB_SSTABLES
          • V$OB_PROCESSLIST
          • GV$DML_STATS
          • V$ENCRYPTED_TABLESPACES
          • V$SESSION_EVENT
          • V$SYSTEM_EVENT
          • GV$OB_PROCESSLIST
          • GV$OB_MERGE_INFO
          • V$DML_STATS
          • GV$SYSTEM_EVENT
          • GV$OB_TABLET_COMPACTION_PROGRESS
          • V$OB_LS_REPLICA_TASK_PLAN
          • V$OB_LS_LOG_RESTORE_STATUS
          • V$OB_PX_WORKER_STAT
          • GV$OB_THREAD
          • V$SQL_JOIN_FILTER
          • GV$OB_RPC_OUTGOING
          • GV$OB_SERVERS
          • GV$SQL_WORKAREA_ACTIVE
          • V$OB_MEMORY
          • GV$SQL_JOIN_FILTER
          • GV$SESSION_LONGOPS
          • V$SQL_PLAN_MONITOR
          • V$OB_SQL_AUDIT
          • V$SQL_WORKAREA
      • MySQL tenant views
        • Performance views
          • GV$SYSTEM_EVENT
          • GV$ACTIVE_SESSION_HISTORY
          • V$OB_IO_CALIBRATION_STATUS
          • V$OB_MEMORY
          • V$SQL_JOIN_FILTER
          • GV$OB_PX_WORKER_STAT
          • V$SESSION_WAIT_HISTORY
          • V$RSRC_PLAN
          • V$OB_DTL_INTERM_RESULT_MONITOR
          • V$OB_LOCKS
          • V$OB_SQL_PLAN
          • V$OB_KVCACHE
          • GV$OB_RPC_OUTGOING
          • V$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_PS_ITEM_INFO
          • V$OB_PROCESSLIST
          • V$OB_PX_P2P_DATAHUB
          • V$OB_SQL_WORKAREA_MEMORY_INFO
          • V$OB_MERGE_INFO
          • V$OB_PX_WORKER_STAT
          • V$OB_ENCRYPTED_TABLES
          • V$SESSION_LONGOPS
          • GV$OB_COMPACTION_SUGGESTIONS
          • GV$LATCH
          • GV$SESSION_WAIT_HISTORY
          • GV$OB_SQL_AUDIT
          • V$SQL_WORKAREA_HISTOGRAM
          • GV$OB_SERVER_SCHEMA_INFO
          • V$SQL_WORKAREA_ACTIVE
          • V$OB_COMPACTION_PROGRESS
          • V$SQL_MONITOR_STATNAME
          • GV$OB_SERVERS
          • GV$OB_PROCESSLIST
          • V$OB_THREAD
          • GV$OB_COMPACTION_PROGRESS
          • GV$OB_MEMSTORE
          • GV$SQL_JOIN_FILTER
          • GV$OB_PS_STAT
          • V$OB_SQL_AUDIT
          • V$SESSION_EVENT
          • GV$SESSION_EVENT
          • V$OB_ARCHIVE_DEST_STATUS
          • GV$OB_PARAMETERS
          • GV$SESSTAT
          • V$OB_LS_REPLICA_TASK_PLAN
          • GV$SYSSTAT
          • V$OB_PX_TARGET_MONITOR
          • V$OB_IO_BENCHMARK
          • GV$OB_PX_TARGET_MONITOR
          • V$OB_MEMSTORE
          • V$STATNAME
          • GV$SQL_WORKAREA_ACTIVE
          • GV$OB_PLAN_CACHE_PLAN_STAT
          • GV$OB_SQL_WORKAREA_MEMORY_INFO
          • GV$OB_PLAN_CACHE_PLAN_EXPLAIN
          • V$SQL_PLAN_MONITOR
          • GV$SESSION_WAIT
          • V$OB_UNITS
          • V$OB_PLAN_CACHE_PLAN_EXPLAIN
          • V$OB_MEMSTORE_INFO
          • V$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_TABLET_COMPACTION_PROGRESS
          • V$ENCRYPTED_TABLESPACES
          • V$OB_LOG_STAT
          • V$LATCH
          • V$OB_RPC_INCOMING
          • GV$OB_SQL_PLAN
          • V$OB_PARAMETERS
          • V$OB_RPC_OUTGOING
          • V$EVENT_NAME
          • GV$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_COMPACTION_DIAGNOSE_INFO
          • V$SESSTAT
          • V$SQL_WORKAREA
          • V$OB_OPT_STAT_GATHER_MONITOR
          • GV$SQL_WORKAREA
          • GV$OB_LOG_STAT
          • GV$SQL_PLAN_MONITOR
          • GV$SESSION_LONGOPS
          • V$OB_SERVERS
          • GV$OB_THREAD
          • GV$OB_COMPACTION_DIAGNOSE_INFO
          • GV$OB_MEMORY
          • V$OB_SERVER_SCHEMA_INFO
          • V$OB_TIMESTAMP_SERVICE
          • V$OB_TENANT_MEMORY
          • V$SESSION_WAIT
          • GV$OB_TABLET_COMPACTION_HISTORY
          • GV$SQL_WORKAREA_HISTOGRAM
          • V$DML_STATS
          • V$SYSTEM_EVENT
          • GV$OB_UNITS
          • GV$OB_SSTABLES
          • V$OB_PLAN_CACHE_PLAN_STAT
          • GV$OB_TENANT_MEMORY
          • GV$OB_TABLET_COMPACTION_PROGRESS
          • GV$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_KVCACHE
          • V$SYSSTAT
          • V$OB_PLAN_CACHE_STAT
          • V$OB_TABLET_COMPACTION_HISTORY
          • V$OB_SSTABLES
          • V$OB_PS_STAT
          • GV$OB_ARBITRATION_MEMBER_INFO
          • GV$OB_PX_P2P_DATAHUB
          • GV$OB_PLAN_CACHE_STAT
          • GV$DML_STATS
          • GV$OB_MEMSTORE_INFO
          • GV$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_ARBITRATION_MEMBER_INFO
          • V$OB_LS_LOG_RESTORE_STATUS
          • V$ACTIVE_SESSION_HISTORY
          • GV$OB_RPC_INCOMING
          • GV$OB_IO_CALIBRATION_STATUS
          • V$OB_PS_ITEM_INFO
          • GV$OB_LOCKS
          • GV$OB_MERGE_INFO
          • V$OB_COMPACTION_SUGGESTIONS
          • GV$OB_IO_BENCHMARK
          • GV$OB_DTL_INTERM_RESULT_MONITOR
        • Dictionary views
          • oceanbase.DBA_OB_BACKUP_JOB_HISTORY
          • information_schema.GLOBAL_STATUS
          • information_schema.PARTITIONS
          • oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION
          • information_schema.ST_GEOMETRY_COLUMNS
          • oceanbase.DBA_IND_SUBPARTITIONS
          • oceanbase.DBA_OB_EXTERNAL_TABLE_FILES
          • oceanbase.DBA_OB_TABLEGROUP_SUBPARTITIONS
          • oceanbase.DBA_OB_BACKUP_JOBS
          • oceanbase.DBA_OB_BACKUP_DELETE_TASKS
          • mysql.proc
          • mysql.user
          • information_schema.COLUMN_PRIVILEGES
          • information_schema.CHARACTER_SETS
          • oceanbase.DBA_OB_TENANTS
          • mysql.time_zone
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASK_HISTORY
          • oceanbase.DBA_OB_OUTLINES
          • oceanbase.DBA_OB_LS
          • oceanbase.DBA_OB_RECOVER_TABLE_JOB_HISTORY
          • oceanbase.DBA_OB_TABLEGROUPS
          • oceanbase.DBA_OB_MAJOR_COMPACTION
          • mysql.db
          • oceanbase.DBA_OB_LS_HISTORY
          • oceanbase.DBA_OB_LOG_RESTORE_SOURCE
          • oceanbase.DBA_RSRC_CONSUMER_GROUPS
          • oceanbase.DBA_OB_BACKUP_SET_FILES
          • oceanbase.DBA_OB_ARCHIVELOG_SUMMARY
          • oceanbase.DBA_IND_PARTITIONS
          • oceanbase.DBA_WR_CONTROL
          • oceanbase.DBA_PART_HISTOGRAMS
          • oceanbase.DBA_OB_DATABASES
          • oceanbase.DBA_OB_BALANCE_TASK_HISTORY
          • oceanbase.DBA_TAB_STATS_HISTORY
          • information_schema.VIEW_TABLE_USAGE
          • oceanbase.DBA_OB_TRANSFER_TASKS
          • oceanbase.DBA_RSRC_PLAN_DIRECTIVES
          • oceanbase.DBA_OB_LS_LOG_ARCHIVE_PROGRESS
          • information_schema.PARAMETERS
          • oceanbase.DBA_TAB_PARTITIONS
          • oceanbase.DBA_DB_LINKS
          • mysql.time_zone_transition_type
          • mysql.time_zone_name
          • oceanbase.DBA_OB_BALANCE_JOB_HISTORY
          • oceanbase.DBA_OB_TASK_OPT_STAT_GATHER_HISTORY
          • information_schema.QUERY_RESPONSE_TIME
          • information_schema.VIEWS
          • oceanbase.DBA_OB_LS_REPLICA_TASKS
          • oceanbase.DBA_OB_FREEZE_INFO
          • oceanbase.DBA_OB_DEADLOCK_EVENT_HISTORY
          • oceanbase.DBA_SCHEDULER_JOBS
          • information_schema.COLLATION_CHARACTER_SET_APPLICABILITY
          • information_schema.PROCESSLIST
          • oceanbase.DBA_OB_RECOVER_TABLE_JOBS
          • oceanbase.DBA_OB_BACKUP_DELETE_TASK_HISTORY
          • oceanbase.DBA_PART_COL_STATISTICS
          • oceanbase.DBA_OB_IMPORT_TABLE_JOB_HISTORY
          • information_schema.ST_SPATIAL_REFERENCE_SYSTEMS
          • oceanbase.DBA_SUBPART_COL_STATISTICS
          • information_schema.STATISTICS
          • oceanbase.DBA_WR_SNAPSHOT
          • information_schema.ROUTINES
          • oceanbase.DBA_OB_AUTO_INCREMENT
          • oceanbase.DBA_OB_BACKUP_TASK_HISTORY
          • oceanbase.DBA_OB_USERS
          • oceanbase.DBA_OB_BALANCE_TASKS
          • oceanbase.DBA_TAB_MODIFICATIONS
          • oceanbase.DBA_OB_ARCHIVE_DEST
          • oceanbase.DBA_OB_BALANCE_JOBS
          • oceanbase.DBA_OBJECTS
          • oceanbase.DBA_SCHEDULER_WINDOWS
          • oceanbase.DBA_OB_KV_TTL_TASKS
          • information_schema.TABLE_CONSTRAINTS
          • oceanbase.DBA_OB_USER_DEFINED_RULES
          • oceanbase.DBA_SQL_MANAGEMENT_CONFIG
          • oceanbase.DBA_SQL_PLAN_BASELINES
          • oceanbase.DBA_OB_ARCHIVELOG_PIECE_FILES
          • oceanbase.DBA_WR_ACTIVE_SESSION_HISTORY
          • oceanbase.DBA_OB_RESTORE_PROGRESS
          • information_schema.TABLES
          • information_schema.ENGINES
          • information_schema.GLOBAL_VARIABLES
          • oceanbase.DBA_OB_CLUSTER_EVENT_HISTORY
          • oceanbase.DBA_IND_STATISTICS
          • information_schema.KEY_COLUMN_USAGE
          • oceanbase.DBA_TAB_SUBPARTITIONS
          • oceanbase.DBA_WR_SYSSTAT
          • oceanbase.DBA_OB_BACKUP_PARAMETER
          • oceanbase.DBA_OB_ARCHIVELOG
          • oceanbase.DBA_OB_BACKUP_DELETE_JOB_HISTORY
          • information_schema.USER_PRIVILEGES
          • oceanbase.DBA_SUBPART_HISTOGRAMS
          • oceanbase.DBA_OB_TABLE_STAT_STALE_INFO
          • information_schema.CHECK_CONSTRAINTS
          • oceanbase.DBA_OB_TABLET_REPLICAS
          • information_schema.REFERENTIAL_CONSTRAINTS
          • information_schema.CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS
          • oceanbase.DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY
          • mysql.help_category
          • oceanbase.DBA_WR_STATNAME
          • information_schema.SESSION_VARIABLES
          • information_schema.COLUMNS
          • information_schema.COLLATIONS
          • oceanbase.DBA_OB_DATA_DICTIONARY_IN_LOG
          • oceanbase.DBA_OB_IMPORT_TABLE_TASK_HISTORY
          • oceanbase.DBA_OB_TENANT_EVENT_HISTORY
          • oceanbase.DBA_OB_DATABASE_PRIVILEGE
          • mysql.help_keyword
          • oceanbase.DBA_OB_CONCURRENT_LIMIT_SQL
          • mysql.time_zone_transition
          • mysql.help_relation
          • oceanbase.DBA_OB_LS_ARB_REPLICA_TASKS
          • oceanbase.DBA_OB_SEQUENCE_OBJECTS
          • oceanbase.DBA_PART_INDEXES
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO
          • oceanbase.DBA_OB_LS_LOCATIONS
          • oceanbase.DBA_RSRC_PLANS
          • oceanbase.DBA_OB_TABLET_TO_LS
          • oceanbase.DBA_OB_KV_TTL_TASK_HISTORY
          • oceanbase.DBA_TAB_COL_STATISTICS
          • oceanbase.DBA_OB_OUTLINE_CONCURRENT_HISTORY
          • oceanbase.DBA_OB_BACKUP_DELETE_POLICY
          • oceanbase.DBA_OB_RSRC_IO_DIRECTIVES
          • oceanbase.DBA_OB_ACCESS_POINT
          • oceanbase.DBA_TAB_HISTOGRAMS
          • oceanbase.DBA_OB_TABLE_LOCATIONS
          • information_schema.SCHEMATA
          • oceanbase.DBA_PART_KEY_COLUMNS
          • oceanbase.DBA_SUBPARTITION_TEMPLATES
          • oceanbase.DBA_OB_RESTORE_HISTORY
          • information_schema.TABLE_PRIVILEGES
          • information_schema.SCHEMA_PRIVILEGES
          • oceanbase.DBA_OB_TABLEGROUP_TABLES
          • oceanbase.DBA_SEQUENCES
          • oceanbase.DBA_RSRC_GROUP_MAPPINGS
          • oceanbase.DBA_PART_TABLES
          • oceanbase.DBA_OB_BACKUP_DELETE_JOBS
          • oceanbase.DBA_OB_BACKUP_TASKS
          • oceanbase.DBA_OB_IMPORT_TABLE_TASKS
          • information_schema.SESSION_STATUS
          • oceanbase.DBA_SUBPART_KEY_COLUMNS
          • oceanbase.DBA_TAB_STATISTICS
          • oceanbase.DBA_OB_BACKUP_STORAGE_INFO_HISTORY
          • oceanbase.ALL_OB_EXTERNAL_TABLE_FILES
          • oceanbase.DBA_OB_TABLEGROUP_PARTITIONS
          • oceanbase.DBA_OB_TRANSFER_TASK_HISTORY
          • mysql.help_topic
          • oceanbase.DBA_OB_IMPORT_TABLE_JOBS
      • Oracle tenant views
        • Dictionary views
          • DBA_PART_TABLES
          • DBA_INDEXES
          • DBA_OB_DATA_DICTIONARY_IN_LOG
          • USER_IND_PARTITIONS
          • USER_TRIGGERS
          • USER_DB_LINKS
          • DBA_OB_TRANSFER_TASK_HISTORY
          • DBA_SCHEDULER_PROGRAM
          • DBA_OB_FREEZE_INFO
          • DBA_SYS_PRIVS
          • ALL_SCHEDULER_JOB_ARGS
          • DBA_RSRC_CONSUMER_GROUPS
          • DBA_OB_TENANT_EVENT_HISTORY
          • ALL_PART_INDEXES
          • DBA_RSRC_PLANS
          • DBA_OB_IMPORT_TABLE_TASKS
          • DBA_SCHEDULER_WINDOWS
          • USER_POLICY_CONTEXTS
          • ALL_POLICY_CONTEXTS
          • DBA_METHOD_PARAMS
          • DBA_OB_RECOVER_TABLE_JOBS
          • DBA_OBJ_AUDIT_OPTS
          • USER_OBJECTS
          • NLS_SESSION_PARAMETERS
          • DBA_OB_TABLET_REPLICAS
          • ALL_TYPE_METHODS
          • ALL_PART_TABLES
          • ALL_METHOD_PARAMS
          • USER_PROCEDURES
          • DBA_CONTEXT
          • ALL_CONS_COLUMNS
          • DBA_IND_STATISTICS
          • ALL_SUBPART_COL_STATISTICS
          • ALL_TRIGGER_ORDERING
          • DBA_TABLESPACES
          • DBA_OB_CONCURRENT_LIMIT_SQL
          • USER_SEC_RELEVANT_COLS
          • DBA_RSRC_PLAN_DIRECTIVES
          • ROLE_SYS_PRIVS
          • USER_COL_PRIVS
          • USER_RECYCLEBIN
          • DBA_OB_EXTERNAL_TABLE_FILES
          • ALL_SUBPART_HISTOGRAMS
          • ALL_CONSTRAINTS
          • USER_ERRORS
          • DBA_OB_TABLE_LOCATIONS
          • DBA_TYPE_METHODS
          • USER_AUDIT_TRAIL
          • USER_TAB_MODIFICATIONS
          • DBA_PART_INDEXES
          • DBA_USERS
          • DBA_SQL_MANAGEMENT_CONFIG
          • USER_POLICY_GROUPS
          • USER_TAB_COMMENTS
          • DBA_OB_BACKUP_DELETE_TASKS
          • DBA_OB_LOG_RESTORE_SOURCE
          • ALL_DB_LINKS
          • DBA_TYPES
          • USER_TABLES
          • DICT
          • DBA_OB_ARCHIVE_DEST
          • DBA_DB_LINKS
          • DBA_OB_BACKUP_DELETE_TASK_HISTORY
          • DBA_IND_PARTITIONS
          • DBA_SUBPARTITION_TEMPLATES
          • DBA_OB_ACCESS_POINT
          • DBA_TYPE_ATTRS
          • USER_SYNONYMS
          • USER_TAB_STATS_HISTORY
          • DBA_IND_EXPRESSIONS
          • USER_COL_COMMENTS
          • ALL_TAB_HISTOGRAMS
          • USER_TAB_PARTITIONS
          • DBA_OB_LS_REPLICA_TASKS
          • DBA_POLICIES
          • DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY
          • DBA_OB_ARCHIVELOG_PIECE_FILES
          • USER_TYPE_METHODS
          • DBA_WR_SYSSTAT
          • USER_DEPENDENCIES
          • USER_ROLE_PRIVS
          • ALL_TAB_COLS
          • ALL_TRIGGERS
          • ALL_POLICIES
          • DBA_IND_SUBPARTITIONS
          • DBA_SUBPART_COL_STATISTICS
          • USER_SCHEDULER_JOB_ARGS
          • ALL_PROCEDURES
          • DBA_AUDIT_STATEMENT
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          • ALL_INDEXES
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          • ALL_DEPENDENCIES
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          • ALL_ARGUMENTS
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        • Performance views
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          • GV$OB_PS_ITEM_INFO
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    • Platforms
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    • Parameters and system variables
      • Overview
      • System variables
        • Overview
        • Global variables
          • auto_increment_cache_size
          • auto_increment_increment
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          • autocommit
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          • character_set_client
          • character_set_connection
          • character_set_database
          • character_set_filesystem
          • character_set_results
          • character_set_server
          • character_set_system
          • collation_connection
          • collation_database
          • collation_server
          • connect_timeout
          • cursor_sharing
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          • default_password_lifetime
          • div_precision_increment
          • error_on_overlap_time
          • explicit_defaults_for_timestamp
          • foreign_key_checks
          • group_concat_max_len
          • identity
          • init_connect
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          • interactive_timeout
          • license
          • lower_case_table_names
          • max_allowed_packet
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          • max_sp_recursion_depth
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          • net_buffer_length
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          • nls_calendar
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          • nls_dual_currency
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          • nls_numeric_characters
          • nls_sort
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          • ob_create_table_strict_mode
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          • ob_compatibility_mode
          • ob_enable_blk_nestedloop_join
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          • ob_enable_jit
          • ob_enable_plan_cache
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          • ob_enable_truncate_flashback
          • ob_global_debug_sync
          • ob_log_level
          • 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_tcp_invited_nodes
          • ob_temp_tablespace_size_percentage
          • ob_timestamp_service
          • ob_trx_idle_timeout
          • ob_trx_lock_timeout
          • ob_trx_timeout
          • optimizer_capture_sql_plan_baselines
          • optimizer_use_sql_plan_baselines
          • parallel_max_servers
          • parallel_servers_target
          • performance_schema
          • plugin_dir
          • query_cache_size
          • query_cache_type
          • read_only
          • recyclebin
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          • secure_file_priv
          • sql_auto_is_null
          • sql_mode
          • sql_quote_show_create
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          • sql_select_limit
          • sql_throttle_current_priority
          • sql_throttle_network
          • sql_throttle_priority
          • sql_throttle_rt
          • sql_warnings
          • system_time_zone
          • time_zone
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          • transaction_read_only
          • tx_isolation
          • tx_read_only
          • version
          • version_comment
          • wait_timeout
          • validate_password_check_user_name
          • validate_password_length
          • validate_password_mixed_case_count
          • validate_password_number_count
          • validate_password_policy
          • validate_password_special_char_count
          • server_uuid
          • default_storage_engine
          • ob_enable_rich_error_msg
          • cte_max_recursion_depth
          • regexp_stack_limit
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          • log_row_value_options
          • ob_max_read_stale_time
          • parallel_degree_policy
          • parallel_degree_limit
          • parallel_min_scan_time_threshold
          • optimizer_dynamic_sampling
          • runtime_filter_type
          • runtime_filter_wait_time_ms
          • runtime_filter_max_in_num
          • runtime_bloom_filter_max_size
          • optimizer_features_enable
        • Session-level variables
          • runtime_bloom_filter_max_size
          • nls_language
          • last_insert_id
          • ob_org_cluster_id
          • ob_trace_info
          • is_result_accurate
          • runtime_filter_max_in_num
          • ob_max_read_stale_time
          • timestamp
          • parallel_min_scan_time_threshold
          • optimizer_dynamic_sampling
          • runtime_filter_type
          • ob_enable_show_trace
          • runtime_filter_wait_time_ms
          • ob_proxy_partition_hit
          • parallel_degree_policy
          • tracefile_identifier
          • ob_capability_flag
          • ob_proxy_set_trx_executed
          • parallel_degree_limit
          • ob_last_schema_version
      • Parameters
        • Overview
        • Cluster-level parameters
          • location_cache_priority
          • stack_size
          • tableapi_transport_compress_func
          • devname
          • cluster_id
          • disk_io_thread_count
          • enable_pg
          • minor_merge_concurrency
          • tablet_size
          • default_transport_compress_func
          • backup_dest_option
          • ofs_list
          • clog_transport_compress_func
          • row_purge_thread_count
          • rpc_timeout
          • high_priority_net_thread_count
          • location_fetch_concurrency
          • lease_time
          • get_leader_candidate_rpc_timeout
          • ob_esi_memory_limit
          • enable_manual_merge
          • global_index_build_single_replica_timeout
          • datafile_size
          • datafile_maxsize
          • schema_history_recycle_interval
          • schema_history_expire_time
          • cluster
          • location_cache_refresh_sql_timeout
          • weak_read_version_refresh_interval
          • opt_tab_stat_cache_priority
          • enable_auto_leader_switch
          • data_dir
          • storage_meta_cache_priority
          • balancer_timeout_check_interval
          • minor_deferred_gc_time
          • merger_completion_percentage
          • enable_upgrade_mode
          • backup_recovery_window
          • index_block_cache_priority
          • log_archive_checkpoint_interval
          • sql_login_thread_count
          • ob_esi_io_concurrency
          • clog_expire_days
          • user_block_cache_priority
          • trx_2pc_retry_interval
          • memory_chunk_cache_size
          • tcp_keepintvl
          • log_storage_warning_tolerance_time
          • backup_dest
          • server_balance_disk_tolerance_percent
          • backup_backup_dest
          • cpu_count
          • token_reserved_percentage
          • server_data_copy_out_concurrency
          • cpu_reserved
          • switchover_process_thread_count
          • trx_try_wait_lock_timeout
          • ob_ratelimit_stat_period
          • dtl_buffer_size
          • enable_sys_table_ddl
          • rootservice_list
          • dead_socket_detection_timeout
          • local_ip
          • tenant_groups
          • server_permanent_offline_time
          • memstore_limit_percentage
          • backup_zone
          • tablet_meta_table_check_interval
          • location_cache_refresh_min_interval
          • server_data_copy_in_concurrency
          • standby_fetch_log_bandwidth_limit
          • minor_warm_up_duration_time
          • election_blacklist_interval
          • net_thread_count
          • virtual_table_location_cache_expire_time
          • multiblock_read_gap_size
          • rpc_port
          • autoinc_cache_refresh_interval
          • replica_safe_remove_time
          • leak_mod_to_check
          • observer_id
          • ob_esi_session_timeout
          • enable_record_trace_id
          • enable_global_freeze_trigger
          • enable_ddl
          • log_archive_batch_buffer_limit
          • sql_protocol_min_tls_version
          • enable_rootservice_standalone
          • plan_cache_evict_interval
          • datafile_next
          • restore_concurrency
          • memory_limit
          • enable_rich_error_msg
          • system_cpu_quota
          • syslog_io_bandwidth_limit
          • enable_ob_ratelimit
          • wait_leader_batch_count
          • sys_bkgd_io_low_percentage
          • diag_syslog_per_error_limit
          • zone_merge_concurrency
          • sys_bkgd_migration_change_member_list_timeout
          • auto_broadcast_location_cache_rate_limit
          • log_disk_percentage
          • mysql_port
          • enable_one_phase_commit
          • log_disk_size
          • tcp_keepcnt
          • ilog_index_expire_time
          • obconfig_url
          • enable_ob_esi_process
          • ignore_replay_checksum_error
          • enable_record_trace_log
          • min_observer_version
          • migrate_concurrency
          • large_query_threshold
          • data_storage_warning_tolerance_time
          • merge_thread_count
          • zone_merge_order
          • global_major_freeze_residual_memory
          • balancer_log_interval
          • memory_reserved
          • workers_per_cpu_quota
          • px_task_size
          • rootservice_ready_check_interval
          • enable_cgroup
          • partition_table_check_interval
          • enable_sys_unit_standalone
          • clog_cache_priority
          • resource_soft_limit
          • syslog_level
          • debug_sync_timeout
          • enable_async_syslog
          • plan_cache_high_watermark
          • tenant_task_queue_size
          • global_write_halt_residual_memory
          • index_clog_cache_priority
          • clog_sync_time_warn_threshold
          • enable_rereplication
          • system_memory
          • enable_syslog_wf
          • enable_log_archive
          • clog_disk_usage_limit_percentage
          • index_info_block_cache_priority
          • ob_startup_mode
          • ob_event_history_recycle_interval
          • migration_disable_time
          • tenant_cpu_variation_per_server
          • config_additional_dir
          • recyclebin_object_expire_time
          • memory_limit_percentage
          • enable_syslog_recycle
          • unit_balance_resource_weight
          • rpc_client_authentication_method
          • max_px_worker_count
          • use_large_pages
          • tablet_meta_table_scan_batch_count
          • server_balance_critical_disk_waterlevel
          • sys_bkgd_net_percentage
          • data_storage_error_tolerance_time
          • enable_sql_operator_dump
          • max_string_print_length
          • user_row_cache_priority
          • enable_major_freeze
          • bf_cache_priority
          • auto_refresh_location_cache_rate_limit
          • server_check_interval
          • ls_meta_table_check_interval
          • balancer_emergency_percentage
          • datafile_disk_percentage
          • enable_tcp_keepalive
          • system_trace_level
          • internal_sql_execute_timeout
          • location_cache_expire_time
          • auto_leader_switch_interval
          • cache_wash_threshold
          • backup_concurrency
          • ignore_replica_checksum_error
          • zone_merge_timeout
          • data_copy_concurrency
          • max_syslog_file_count
          • ssl_external_kms_info
          • default_compress
          • balance_blacklist_retry_interval
          • micro_block_merge_verify_level
          • enable_merge_by_turn
          • tcp_keepidle
          • merger_switch_leader_duration_time
          • sys_bkgd_migration_retry_num
          • ssl_client_authentication
          • enable_perf_event
          • ob_esi_rpc_port
          • flush_log_at_trx_commit
          • merger_warm_up_duration_time
          • large_query_worker_percentage
          • builtin_db_data_verify_cycle
          • ob_esi_syslog_level
          • rootservice_memory_limit
          • default_compress_func
          • balance_blacklist_failure_threshold
          • location_refresh_thread_count
          • rpc_server_authentication_method
          • location_cache_cpu_quota
          • server_balance_cpu_mem_tolerance_percent
          • px_workers_per_cpu_quota
          • merge_stat_sampling_ratio
          • enable_auto_refresh_location_cache
          • election_cpu_quota
          • index_cache_priority
          • plan_cache_low_watermark
          • minor_freeze_times
          • location_cache_refresh_rpc_timeout
          • all_cluster_list
          • sql_audit_memory_limit
          • multiblock_read_size
          • clog_disk_utilization_threshold
          • zone
          • resource_hard_limit
          • backup_net_limit
          • bf_cache_miss_count_threshold
          • enable_sql_audit
          • all_server_list
          • rootservice_async_task_thread_count
          • data_disk_usage_limit_percentage
          • backup_log_archive_option
          • user_iort_up_percentage
          • enable_election_group
          • sys_bkgd_io_high_percentage
          • rdma_io_thread_count
          • backup_backup_dest_option
          • user_tab_col_stat_cache_priority
          • ob_esi_max_syslog_file_count
          • server_cpu_quota_min
          • trx_force_kill_threshold
          • fuse_row_cache_priority
          • max_kept_major_version_number
          • trace_log_slow_query_watermark
          • enable_separate_sys_clog
          • sys_cpu_limit_trigger
          • enable_smooth_leader_switch
          • balancer_tolerance_percentage
          • balancer_task_timeout
          • row_compaction_update_limit
          • rootservice_async_task_queue_size
          • enable_asan_for_memory_context
          • fast_recovery_concurrency
          • backup_region
          • sql_net_thread_count
          • gc_wait_archive
          • rebuild_replica_data_lag_threshold
          • server_cpu_quota_max
          • trace_log_sampling_interval
          • tablet_ls_cache_priority
          • default_row_format
        • Tenant-level parameters
          • audit_sys_operations
          • audit_trail
          • clog_max_unconfirmed_log_count
          • clog_persistence_compress_func
          • connection_control_failed_connections_threshold
          • connection_control_min_connection_delay
          • connection_control_max_connection_delay
          • enable_clog_persistence_compress
          • enable_early_lock_release
          • enable_monotonic_weak_read
          • external_kms_info
          • enable_sql_extension
          • default_progressive_merge_num
          • io_category_config
          • log_disk_utilization_limit_threshold
          • log_disk_utilization_threshold
          • major_compact_trigger
          • compaction_low_thread_score
          • max_stale_time_for_weak_consistency
          • compaction_high_thread_score
          • minor_compact_trigger
          • compaction_mid_thread_score
          • ob_enable_batched_multi_statement
          • ob_proxy_readonly_transaction_routing_policy
          • ob_ssl_invited_common_names
          • open_cursors
          • plsql_code_type
          • plsql_debug
          • plsql_optimize_level
          • plsql_warnings
          • sql_work_area
          • tde_method
          • writing_throttling_maximum_duration
          • writing_throttling_trigger_percentage
          • workarea_size_policy
          • plsql_v2_compatibility
          • job_queue_processes
          • ha_high_thread_score
          • ha_mid_thread_score
          • ha_low_thread_score
          • ob_compaction_schedule_interval
          • default_auto_increment_mode
          • ob_query_switch_leader_retry_timeout
          • default_enable_extended_rowid
          • major_freeze_duty_time
          • undo_retention
          • query_response_time_stats
          • query_response_time_flush
          • query_response_time_range_base
          • merger_check_interval
          • freeze_trigger_percentage
          • cpu_quota_concurrency
          • arbitration_timeout
          • compatible
          • log_transport_compress_all
          • log_transport_compress_func
          • rpc_memory_limit_percentage
          • tenant_sql_login_thread_count
          • tenant_sql_net_thread_count
          • dump_data_dictionary_to_log_interval
          • enable_user_defined_rewrite_rules
          • partition_balance_schedule_interval
          • log_disk_throttling_percentage
          • enable_rebalance
          • balancer_idle_time
          • log_disk_throttling_maximum_duration
          • ls_gc_delay_time
          • standby_db_preferred_upstream_log_region
          • archive_lag_target
          • range_optimizer_max_mem_size
          • log_restore_concurrency
          • log_archive_concurrency
          • standby_db_fetch_log_rpc_timeout
          • enable_transfer
          • kv_ttl_duty_duration
          • kv_ttl_history_recycle_interval
          • enable_kv_ttl
          • ttl_thread_score
          • compaction_dag_cnt_limit
          • compaction_schedule_tablet_batch_cnt
    • Database object management
      • Overview
      • Oracle mode
        • Create and manage tables
          • Overview
          • Create a table
          • Define column constraints
          • Query the definition of a table
          • Modify a table
          • Empty a table
          • Drop a table
          • Lock a table
          • Create and manage external tables
            • Create an external table
            • Overview
            • Manage external files
        • Create and manage partitions
          • Overview
          • Create a partitioned table
          • Modify partitioning rules
          • Rename a partition
          • Add a partition
          • Drop a partition
          • Truncate a partition
          • Partition pruning
          • Query data in specified partitions
          • Create indexes on partitioned tables
            • Global indexes
            • Local indexes
            • Overview
        • Create and manage table groups
          • Drop a table group
          • Query information about a table group
          • Manage tables in a table group
          • Add tables to a table group
          • Modify the SHARDING attribute of a table group
          • Overview
          • Create a table group
        • Create and manage indexes
          • Overview
          • Create an index
          • Query indexes
          • System functions not supported for function-based indexes
          • System functions supported for function-based indexes
          • Drop an index
        • Manage views
        • Manage sequences
        • Manage synonyms
        • Create and manage triggers
          • Create an INSTEAD OF trigger
          • Modify and drop a trigger
          • Create a DML trigger
          • Query trigger information
          • Disable or enable a trigger
          • Create a composite trigger
          • Overview
        • Manage directory objects
        • Create and manage DBLinks
          • Drop a DBLink
          • Use a DBLink to access data in a remote database
          • Query existing DBLinks
          • Use a DBLink to modify data in a remote database
          • Install and configure OCI
          • Create a DBLink
      • MySQL mode
        • Create and manage databases
          • Create a database
          • View databases
          • Modify a database
          • Drop a database
        • Create and manage tables
          • Empty a table
          • Create a table
          • Define column constraints
          • Lock a table
          • Modify a table
          • Query the definition of a table
          • Drop a table
          • Define an auto-increment column
          • Overview
          • Create and manage external tables
            • Overview
            • Manage external files
            • Create an external table
        • Create and manage partitions
          • Overview
          • Create a partitioned table
          • Modify partitioning rules
          • Add a partition
          • Drop a partition
          • Truncate a partition
          • Partition pruning
          • Query data in specified partitions
          • Create indexes on partitioned tables
            • Overview
            • Local indexes
            • Global indexes
        • Create and manage table groups
          • Manage tables in a table group
          • Overview
          • Drop a table group
          • Add tables to a table group
          • Create a table group
          • Modify the SHARDING attribute of a table group
          • Query information about a table group
        • Create and manage indexes
          • System functions supported for function-based indexes
          • Query indexes
          • Drop an index
          • System functions not supported for function-based indexes
          • Create an index
          • Overview
        • Manage views
        • Create and manage sequences
          • Modify a sequence
          • Query sequences
          • Create a sequence
          • Drop a sequence
          • Reference a sequence
        • Create and manage triggers
          • Overview
          • Create a DML trigger
          • Query trigger information
          • Drop a trigger
        • Create and manage DBLinks
          • Use a DBLink to access data in a remote database
          • Query a DBLink
          • Drop a DBLink
          • Create a DBLink
    • System principles
      • Architecture of OceanBase Database
      • Development of OceanBase Database
      • Multi-tenant architecture
        • Tenants
        • Overview
        • Compatibility modes
        • Tenants and resource management
          • Resource unit balancing
          • Multi-tenant resource isolation
          • Tenant resource management
      • Database objects
        • Oracle mode
          • Partitions
            • Overview
            • Partitioning keys
            • Partitioning types
            • Partitioned indexes
          • Tables
            • Overview
            • Data type
              • ROWID data types
              • Numeric data types
              • Datetime data types
              • LOB data types
              • Character data types
              • Multi-model data types
              • Overview
              • Format model
                • Number format models
                • Overview
                • Datetime format models
            • Integrity constraints
            • Table storage
            • Table compression
            • Partitioned table
            • Tables with and without a primary key
            • Temporary tables
          • Views
            • View categorization
            • Data operations in views
            • Oracle-compatible views
            • OceanBase-specific views
            • Overview
            • Data access from views
            • Updatable views
          • Introduction
            • Overview
            • Database object types
            • Database object storage
            • Dependencies between database objects
          • Other objects
            • Sequences
            • Synonyms
          • Data integrity
            • Overview
            • Use of integrity constraints
            • Integrity constraint type
              • UNIQUE KEY constraints
              • Overview
              • FOREIGN KEY constraints
              • PRIMARY KEY constraints
              • NOT NULL constraints
              • CHECK constraints
          • System views
            • Dictionary views
            • Performance views
          • Indexes
            • Local and global indexes
            • Unique and non-unique indexes
            • Index storage
            • Use indexes
            • About indexes
        • MySQL mode
          • Data integrity
            • Overview
            • Integrity constraint type
              • Overview
              • NOT NULL constraints
              • UNIQUE KEY constraints
              • PRIMARY KEY constraints
              • FOREIGN KEY constraints
            • Use of integrity constraints
          • Introduction
            • Overview
            • Database object types
            • Database object storage
            • Dependencies between database objects
          • Indexes
            • About indexes
            • Index storage
            • Use indexes
            • Unique and non-unique indexes
            • Spatial indexes
            • Local and global indexes
          • Views
            • OceanBase-specific views
            • Updatable views
            • View categorization
            • Oracle-compatible views in MySQL tenants
            • Overview
            • Oracle-compatible views in the sys tenant
            • Data access from views
            • MySQL-compatible views
            • Data operations in views
          • Partitions
            • Partitioned indexes
            • Overview
            • Partitioning types
            • Partitioning keys
          • Tables
            • Table storage
            • Tables with and without a primary key
            • Partitioned table
            • Table compression
            • Integrity constraints
            • Overview
            • Data type
              • Numeric data types
              • LOB data types
              • Datetime data types
              • Overview
              • Multi-model data types
              • JSON data types
              • Spatial data types
              • Character data types
          • System views
            • Dictionary views
            • Performance views
      • Distributed database objects
        • Overview
        • Cluster architecture
        • Data partitions and replicas
          • Overview
          • Log streams
          • Partition replica type
            • Overview
            • Full-featured replica
          • Multi-replica consensus protocols
        • Dynamic scaling
          • Cluster scaling
          • Tenant resource scaling
            • Horizontal scaling of tenant resources
            • Overview
            • Cross-zone management of tenant resources
            • Vertical scaling of tenant resources
      • Data link
        • Overview
        • Database proxy
          • Overview
          • SQL routing
          • Connection management
          • ODP configuration management
          • Logs and monitoring
        • Database connector
          • Overview
          • OBCI
          • OceanBase Connector/J
          • OceanBase Connector/C
      • User interface and query language
        • Client programming languages
        • SQL
          • Query SQL execution plans
          • Execution process of SQL queries
          • Introduction
            • SQL data access
            • SQL standards
            • Overview
          • Distributed execution plan
            • Perform distributed execution and parallel queries
            • Generate distributed execution plans
            • Run and disable a parallel query
            • Manage distributed execution plans
            • Perform parameter tuning for a parallel query
          • SQL statements
            • Overview
            • DDL statements
            • DCL statements
            • DML statements
        • PL
          • PL concepts
            • MySQL mode
              • Functions
              • Stored procedures
              • Subprograms
              • Triggers
            • Oracle mode
              • Subprograms
              • Triggers
              • Functions
              • Stored procedures
              • Packages
          • PL subprogram execution mechanism
      • Transaction management
        • Transaction concurrency and consistency
          • Overview
          • Multi-version read consistency
          • Concurrency control
            • Overview
            • Lock mechanism
          • Transaction isolation level
            • Transaction isolation levels in MySQL mode
            • Overview
            • Transaction isolation levels in Oracle mode
          • Weak consistency read
        • Transaction
          • Overview
          • Statement-level atomicity
          • Redo logs
          • Transaction structure
          • XA transactions
          • Local transactions
          • GTS
          • Transaction control
            • Active transactions
            • Overview
            • Savepoint
            • Transaction control statements
              • MySQL transaction control
              • Oracle transaction control
          • Distributed transaction
            • Overview
            • Two-phase commit
      • Storage architecture
        • Overview
        • Data storage
          • Overview
          • MemTables
          • SSTables
          • Compression and encoding
        • Compaction
          • Overview
          • Major compaction
          • Minor compaction
        • Multi-level caches
        • Query processing
        • Data integrity
          • Detect silent data corruption
      • Data reliability and high availability
        • Deployment solutions for disaster recovery
        • Data protection
          • Overview
          • Flashback queries
          • Recycle bin
        • High availability architecture
          • Overview
          • ODP high availability
          • Leader election in distributed systems
          • Multi-replica log synchronization
          • Paxos protocol
          • Automatic handling of node failures
        • Backup and restore
          • Overview
          • Backup directory structures
          • Restore architecture
          • Backup architecture
      • Database security
        • Security audit
        • Monitoring and alerting
        • Access control
        • Authentication
        • Data transmission encryption
        • Data storage encryption
        • Overview
      • OBServer node architecture
        • Structure of the OBServer node installation directory
        • Configuration files
        • Logs
        • Memory management
          • Memory-related views
          • Memory-related parameters
          • Diagnose memory errors
          • Memory usage logs
          • Overview
        • observer thread model
          • Threads
          • Worker threads
          • Background threads
    • Database design specifications and practices
      • Character set specifications
      • Comments
      • ORM conventions
      • Database connection specifications
      • Exception handling
      • Object structure design specifications
        • Field design
        • Table structure design
        • Partitioned table design
        • Index design
        • Other structural designs
      • Object naming conventions
        • Tenant naming conventions
        • Overview
        • Other naming conventions
        • User naming conventions
        • Field naming conventions
        • Table naming conventions
    • Performance tuning
      • Overview
      • SQL tuning
        • Execution process of SQL queries
        • SQL execution plans
          • Fast parameterization
          • Plan cache
          • Real-time execution plan display
          • Introduction to SQL execution plans
          • SQL tuning practice with EXPLAIN
          • Execution plan operators
            • SUBPLAN FILTER
            • COUNT
            • INTERSECT
            • SUBPLAN SCAN
            • JOIN
            • DELETE
            • SEQUENCE
            • EXCHANGE
            • GROUP BY
            • FOR UPDATE
            • TABLE SCAN
            • UNION
            • MERGE
            • EXCEPT/MINUS
            • UPDATE
            • WINDOW FUNCTION
            • SELECT INTO
            • GI
            • LIMIT
            • DISTINCT
            • MATERIAL
            • INSERT
            • SORT
        • Distributed execution plans
          • Schedule distributed execution plans
          • Parallel DML
          • Parallel execution enabling methods and their priority
          • Perform parameter tuning for a parallel query
          • Manage distributed execution plans
          • Perform distributed execution and parallel queries
          • Auto DOP
          • Execute parallel queries
          • Generate a distributed plan
        • SQL tuning
          • General procedure
          • Overview
          • 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
          • Query rewrite
            • Cost-based query rewrite
            • Overview
            • Rule-based query rewrite
          • Query optimization
            • Join algorithm
              • Overview
              • Join algorithms
              • Runtime filters
              • Join order
            • Access path
              • Overview
              • Rule-based path selection
              • Cost-based path selection
          • Optimizer statistics
            • Overview of statistics
            • Statistics collection methods
              • Overview
              • Histograms
              • Manual statistics collection
              • 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
            • Statistics collection and update strategy for partitioned tables
            • Monitoring and diagnostics for statistics collection
            • Examples
          • Manage execution plans
            • Optimizer hints
            • Plan binding
            • SQL plan management
        • Glossary
        • General issues in SQL tuning
      • System tuning
        • OS parameter tuning
        • Database parameter tuning
          • CPU parameters
          • I/O parameters
          • Memory-related parameters
          • Network transmission parameters
        • ODP parameter tuning
          • Network transmission parameters
          • Routing parameters on nodes
          • CPU parameters
      • Performance related tools
        • OCP
        • System tools
          • CPU tools
          • Memory tools
          • Top
          • Network tools
          • Disk I/O tools
        • Internal tables
          • GV$OB_SQL_AUDIT
          • GV$OB_TRANSACTION_PARTICIPANTS
          • GV$SYSSTAT
        • Logs
          • slow trans
          • dump tenant info
          • Trace logs
      • Performance diagnosis
        • Monitor and diagnose the cluster performance
        • Diagnose tenant performance
        • Monitor ODP performance
        • Monitor host performance
        • WR management
          • Overview
          • Manage WR
          • Monitor historical session performance
          • Clean up WR data
        • ASH report
          • Analyze ASH reports
          • Generate ASH reports
          • ASH
      • Business model tuning
        • SQL diagnostics
        • Distributed transactions
        • Load balancing
    • System management
      • Configuration management
        • General system parameters
        • Overview
        • Set parameters
        • Default production parameters
        • Minimum resource configurations
        • Set variables
      • Storage management
        • Major compaction management
          • Overview
          • Automatically trigger a major compaction
          • Configure scheduled major compactions
          • Adaptive major compactions
          • Manually initiate a major compaction
          • View the major compaction process
          • Manually control a major compaction
          • Modify major compaction settings
        • Minor compaction management
          • Modify minor compaction settings
          • Automatically trigger a minor compaction
          • Manually initiate a minor compaction
          • Overview
          • View minor compaction information
        • Data compression
          • Overview
          • Data encoding and compression
      • Memory management
        • Overview
        • Manage the memory of the plan cache
        • Manage internal system memory
        • Set the maximum memory for an OceanBase database
        • Manage internal tenant memory
        • FAQ about memory
        • Memleak-based regular memory leak diagnostics mechanism
        • Memory structure
        • Query memory usage information
      • Process management
        • Background threads of OceanBase Database
        • Overview
        • Multi-tenant threads of OceanBase Database
        • FAQ about multi-tenant threads
        • View the thread status
      • Disk management
        • Configure automatic scale-out of disk space for data files
    • Components & tools
      • O&M management
        • ob_error
        • OBD
        • ob_admin
          • Overview
          • clog
            • log_tool
            • Format of clogs
            • Transaction logs
          • dumpsst
          • dump_backup
        • ob-operator
          • Upgrade ob-operator
          • Quick start
          • Overview
          • Deploy ob-operator
          • User guide
            • Manage clusters
              • Create a cluster
              • Delete a cluster
              • Upgrade a cluster
              • Scale out clusters
                • Add zones to a cluster
                • Add OBServer nodes to zones
              • Scale in clusters
                • Delete zones from a cluster
                • Delete OBServer nodes from zones
            • Manage tenants
              • Create a tenant
              • Delete a tenant
              • Modify tenants
                • Modify other parameters
                • Manage replicas
                • Manage resources
            • Backup and restore
              • Back up a cluster
              • Back up a tenant
              • Restore data from a backup
      • Monitoring and diagnostics
        • obdiag
        • SQL diagnoser
          • Overview
          • SQL diagnoser remarks
            • Built-in diagnostic items
            • Diagnostic rule expression
            • Diagnostic items of SQL review
            • APIs
          • Deploy and use SQL diagnoser
            • Install SQL Diagnoser
            • Use SQL Diagnoser
        • DOOBA
      • Data integration
        • OBLogProxy
        • OBLOADER & OBDUMPER
        • Partition calculator
          • Overview
          • Use the ob-partition-calculator component
        • CDC
          • Overview
          • obcdc
            • FAQ about obcdc
            • Deploy and use obcdc
              • Install and deploy obcdc
              • obcdc development instructions
              • obcdc_tailf
            • obcdc parameters
              • General obcdc parameters
              • obcdc parameters
          • oblogmsg
            • Install and deploy oblogmsg
            • Description of some oblogmsg APIs
      • Stress testing tools
        • mysqltest
          • Use obd.sh to run mysqltest
          • Use of cases
            • Add a test case
            • General test case writing commands
            • Test case writing conventions
    • Database proxy
      • Connection and routing
      • View tenant sessions
      • Physical connections
      • Terminate a tenant session
      • OceanBase Database Proxy
      • Set the maximum number of connections for a tenant
      • Logical connection
        • Query session variables
        • Terminate a server session
        • Query the metrics of a session
        • Query all sessions
        • Query the details of a session
      • Route management
        • LDC-based routing
        • Table-based routing of ODP
        • ODP routing policy
          • Read/Write splitting
          • Follower-first read
          • Blocklist mechanism
          • Transaction routing
      • ODP
        • ODP startup parameters
        • Overview
        • 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
        • Manage ODP clusters
          • Restart all ODPs in an ODP cluster
          • Create an ODP cluster
          • Delete an ODP cluster
          • Manage ODP cluster parameters
          • Upgrade all ODPs in an ODP cluster
          • Manage OceanBase clusters connected to an ODP cluster
          • Monitor ODP cluster performance
    • Error codes
      • Oracle mode
        • ORA-01000 to ORA-01499
        • ORA-30000 to ORA-49999
        • ORA-20000 to ORA-29999
        • ORA-10000 to ORA-19999
        • ORA-50000 to ORA-99999
        • ORA-05000 to ORA-10000
        • ORA-01500 to ORA-01999
        • PLS-00000 to PLS-00999
        • ORA-00000 to ORA-00999
        • Overview
        • ORA-02000 to ORA-04999
      • MySQL mode
        • 7000 - 7999
        • 4000 - 4499
        • 5000 - 5999
        • Overview
        • 9500 - 9999
        • 4500 - 4999
        • 8000 - 8999
        • 9000 - 9499
        • 6000 - 6999
        • 0001 - 3999
        • 22998, 30926, 38104, and 38105
    • Drivers
      • OBCI
      • OceanBase Connector/ODBC
      • ECOB
      • OceanBase Connector/J
      • OceanBase Connector/C
    • Performance test
      • Run the TPC-H benchmark on OceanBase Database
      • Run the TPC-C benchmark on OceanBase Database
      • Sysbench benchmark report of OceanBase Database
      • TPC-C benchmark report of OceanBase Database
      • TPC-H benchmark report of OceanBase Database
      • Run the Sysbench benchmark on OceanBase Database
      • Achieve high performance with Sysbench on OceanBase Database: deployment and troubleshooting
  • FAQ
    • Products
    • SQL statements
    • Deployment
    • Cluster management
    • High availability
  • Release Notes
    • Version rules
    • OceanBase Database Enterprise Edition
      • V3.2
        • OceanBase Database Enterprise Edition V3.2.0
        • OceanBase Database Enterprise Edition V3.2.3
        • OceanBase Database Enterprise Edition V3.2.4
        • OceanBase Database Enterprise Edition V3.2.2
        • OceanBase Database Enterprise Edition V3.2.1
      • V4.1
        • OceanBase Database Enterprise Edition V4.1.0
      • V4.2
        • OceanBase Database Enterprise Edition V4.2.1
        • OceanBase Database Enterprise Edition V4.2.0
      • V3.1
        • OceanBase Database Enterprise Edition V3.1.1
        • OceanBase Database Enterprise Edition V3.1.2
      • V2.2
        • OceanBase Database Enterprise Edition V2.2.77
        • OceanBase Database Enterprise Edition V2.2.76
        • OceanBase Database Enterprise Edition V2.2.30
    • OceanBase Database Community Edition
      • V4.0
        • OceanBase Database Community Edition V4.0.0
      • V3.1
        • OceanBase Database Community Edition V3.1.3
        • OceanBase Database Community Edition V3.1.4
        • OceanBase Database Community Edition V3.1.2
        • OceanBase Database Community Edition V3.1.1
        • OceanBase Database Community Edition V3.1.5
      • V4.2
        • OceanBase Database Community Edition V4.2.0
        • OceanBase Database Community Edition V4.2.1
      • V4.1
        • OceanBase Database Community Edition V4.1.0
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ORA-20000 to ORA-29999

Last Updated:2026-04-28 09:23:27  Updated
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ORA-20000: The stored procedure 'raise_application_error' was called which causes this error to be generated", "ORA%06ld: %.*s
ORA-21000: error number argument to raise_application_error of stringstring is out of range
ORA-21560: argument %.*s is null, invalid, or out of range
ORA-22003: value is out of range
ORA-22369: invalid parameter encountered in method %s
ORA-22370: incorrect usage of method %s
ORA-22625: OCIAnyData is not well-formed
ORA-22626: Type Mismatch while constructing or accessing OCIAnyData
ORA-22627: tc [%s] must be that of object/varray/nested table
ORA-22806: not an object or REF
ORA-22816: unsupported feature with RETURNING clause
ORA-22858: invalid alteration of datatype
ORA-22859: invalid modification of columns
ORA-22859: Expected XML tag, got no content
ORA-22903: MULTISET expression not allowed
ORA-22907: invalid CAST to a type that is not a nested table or VARRAY
ORA-22922: LOB value does not exist
ORA-22928: invalid privilege on directories
ORA-22950: cannot ORDER objects without MAP or ORDER method
ORA-22990: LOB locators cannot span transactions
ORA-22998: CLOB or NCLOB in multibyte character set not supported
ORA-23481: unexpected name string'%.*s'
ORA-24234: unable to get source of string \'%.*s\'.\'%.*s\', insufficient privileges or does not exist
ORA-24235: bad value for object type: %.*s
ORA-24236: source text is empty
ORA-24334: no descriptor for this position
ORA-24381: error(s) in array DML
ORA-24761: transaction rolled back
ORA-24761: transaction rolled back: transaction context does not exist
ORA-24761: transaction rolled back: transaction is killed
ORA-24761: transaction rolled back: partition is frozen
ORA-24761: transaction rolled back: Transaction exiting
ORA-24761: transaction rolled back: transaction needs rollback
ORA-24761: transaction rolled back: transaction idle timeout
ORA-24761: transaction rolled back: transaction context count reach limit
ORA-25002: cannot create INSTEAD OF triggers on tables
ORA-25004: WHEN clause is not allowed in INSTEAD OF triggers
ORA-25005: cannot CREATE INSTEAD OF trigger on a read-only view
ORA-25009: Nested tableclause allowed only for INSTEAD OF triggers
ORA-25021: cannot reference a trigger defined on another table
ORA-25022: cannot reference a trigger of a different type
ORA-25023: Cyclic trigger dependency is not allowed
ORA-25025: cannot specify PRECEDES clause
ORA-25128: No insert/update/delete on table with constraint disabled and validated
ORA-25129: cannot modify constraint (%.*s) - no such constraint
ORA-25137: Data value %s out of range in '%s'
ORA-25154: Column part of using clause can not have qualifier
ORA-25156: old style outer join (+) cannot be used with ANSI joins
ORA-25405: Transaction state unknown
ORA-28001: the password has expired
ORA-28101: policy already exists
ORA-28102: policy does not exist
ORA-28103: adding a policy to an object owned by SYS is not allowed
ORA-28104: input value for %s is not valid
ORA-28105: cannot create security relevant column policy in an object view
ORA-28106: input value for argument %s is not valid
ORA-28107: policy was disabled
ORA-28108: circular security policies detected
ORA-28109: the number of related policies has exceeded the limit of 16
ORA-28110: policy function or package %.*s.%.*s has error
ORA-28111: insufficient privilege to evaluate policy predicate
ORA-28112: failed to execute policy function
ORA-28113: policy predicate has error
ORA-28116: insufficient privileges to do direct path access
ORA-28117: integrity constraint violated * parent record not found
ORA-28118: policy group already exists
ORA-28119: policy group does not exist
ORA-28120: driving context already exists
ORA-28121: driving context does not exist
ORA-28122: can not update SYS_DEFAULT policy group
ORA-28123: Driving context %.*s,%.*s contains invalid group %.*s
ORA-28124: Column %.*s in sec_relevant_cols cannot be of an object data type
ORA-28125: A protected base column was referenced in an unprotected virtual column expression
ORA-28126: Attribute association failed for policy %.*s
ORA-28132: The MERGE INTO syntax does not support the security policy
ORA-28115: policy with check option violation
ORA-28106: input value for argument #%d is not valid
ORA-28264: Client identifier is too long
ORA-28265: Namespace beginning with 'SYS_' is not allowed
ORA-28267: The maximum size specified by the _session_context_size parameter was exceeded
ORA-28268: Invalid NameSpace Value
ORA-29253: Invalid count argument passed to procedure dbms_sql.define_array
ORA-29257: host %.*s unknown
ORA-29261: bad argument
ORA-29295: invalid mime header tag
ORA-29357: %s %.*s already exists
ORA-29358: resource plan %.*s does not exist
ORA-29361: value %ld for %s is outside valid range of 0 to 100
ORA-29362: plan directive %.*s, %.*s does not exist
ORA-29364: plan directive %.*s, %.*s already exists
ORA-29366: plan directive name '%.*s' not supported
ORA-29368: consumer group %.*s does not exist
ORA-29471: DBMS_SQL access denied
ORA-29474: DBMS_SQL.OPEN_CURSOR failed. security_level of 0 is not allowed

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Applicability

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

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

  • OceanBase error code: 20000

  • SQLSTATE: HY000

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

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

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

  • OceanBase error code: 21000

  • SQLSTATE: HY000

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

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

  • OceanBase error code: 5934

  • SQLSTATE: HY000

  • Cause: The passed argument value is NULL, invalid, or out of range. For example, the value of the LOB/FILE positional or size argument exceeds the range of 1 to (4 GB – 1), or files are opened in invalid open modes.

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

ORA-22003: value is out of range

  • OceanBase error code: 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.

ORA-22369: invalid parameter encountered in method %s

  • OceanBase error code: 5955

  • SQLSTATE: HY000

  • Cause: An invalid parameter is being passed to SYS, including 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.

ORA-22370: incorrect usage of method %s

  • OceanBase error code: 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.

ORA-22625: OCIAnyData is not well-formed

  • OceanBase error code: 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.

ORA-22626: Type Mismatch while constructing or accessing OCIAnyData

  • OceanBase error code: 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.

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

  • OceanBase error code: 5966

  • SQLSTATE: HY000

  • Cause: The type code is not that of the object/varray/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.

ORA-22806: not an object or REF

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

ORA-22816: unsupported feature with RETURNING clause

  • OceanBase error code: 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.

ORA-22858: invalid alteration of datatype

  • OceanBase error code: 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.

ORA-22859: invalid modification of columns

  • OceanBase error code: 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.

ORA-22859: Expected XML tag, got no content

  • OceanBase error code: 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.

ORA-22903: MULTISET expression not allowed

  • OceanBase error code: 9716
  • SQLSTATE: HY000
  • Cause: The MULTISET expression is not allowed.

Note

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

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

  • OceanBase error code: 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.

ORA-22922: LOB value does not exist

  • OceanBase error code: 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.

ORA-22928: invalid privilege on directories

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

ORA-22990: LOB locators cannot span transactions

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 5932

  • SQLSTATE: HY000

  • Cause: The name string is invalid.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 5961

  • SQLSTATE: HY000

  • Source: 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.

ORA-24236: source text is empty

  • OceanBase error code: 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.

ORA-24334: no descriptor for this position

  • OceanBase error code: 5973

  • SQLSTATE: HY000

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

  • Solution: Check the position number.

ORA-24381: error(s) in array DML

  • OceanBase error code: 5883

  • SQLSTATE: HY000

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

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

ORA-24761: transaction rolled back

  • OceanBase error code: 6002

  • SQLSTATE: 40000

  • Cause: The transaction is rolled back.

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

  • OceanBase error code: 6213

  • SQLSTATE: 40000

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

ORA-24761: transaction rolled back: transaction is killed

  • OceanBase error code: 6211

  • SQLSTATE: 25000

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

ORA-24761: transaction rolled back: partition is frozen

  • OceanBase error code: 6214

  • SQLSTATE: 25000

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

ORA-24761: transaction rolled back: Transaction exiting

  • OceanBase error code: 6223

  • SQLSTATE: 25000

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

ORA-24761: transaction rolled back: transaction needs rollback

  • OceanBase error code: 6224

  • SQLSTATE: 25000

  • Cause: The transaction is rolled back as required.

ORA-24761: transaction rolled back: transaction idle timeout

  • OceanBase error code: 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.

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

  • OceanBase error code: 6234

  • SQLSTATE: 25000

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

ORA-25002: cannot create INSTEAD OF triggers on tables

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

ORA-25023: Cyclic trigger dependency is not allowed

  • OceanBase error code: 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.

ORA-25025: cannot specify PRECEDES clause

  • OceanBase error code: 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.

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

  • OceanBase error code: 5795

  • SQLSTATE: HY000

  • Cause: The operation attempted to perform an insert, update, or delete operation on a table with the DISABLE VALIDATE constraint.

  • Solution: Change the status of the constraint.

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

  • OceanBase error code: 5800

  • SQLSTATE: HY000

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

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

  • OceanBase error code: 4157

  • SQLSTATE: 22003

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

  • Solution: Increase the target value.

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

  • OceanBase error code: 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 explicit qualifiers.

  • Solution: Delete the qualifiers.

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

  • OceanBase error code: 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.

ORA-25405: Transaction state unknown

  • OceanBase error code: 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.

ORA-28001: the password has expired

  • OceanBase error code: 4366

  • SQLSTATE: HY000

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

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

ORA-28101: policy already exists

  • OceanBase error code: 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.

ORA-28102: policy does not exist

  • OceanBase error code: 9719
  • SQLSTATE: HY000
  • Cause: The strategy does not exist.

Note

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

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

ORA-28107: policy was disabled

  • OceanBase error code: 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.

ORA-28108: circular security policies detected

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

Note

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

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 9727
  • SQLSTATE: HY000
  • Cause: The policy function or package is incorrect, has been deleted, or is no longer valid.
  • Solution: Check the status of the feature and correct the problem, or create a new strategy with a valid feature.

Note

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

ORA-28111: insufficient privilege to evaluate policy predicate

  • OceanBase error code: 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.

ORA-28112: failed to execute policy function

  • OceanBase error code: 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.

ORA-28113: policy predicate has error

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

Note

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

ORA-28116: insufficient privileges to do direct path access

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

ORA-28118: policy group already exists

  • OceanBase error code: 9733
  • SQLSTATE: HY000
  • Cause: The strategy group already exists.

Note

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

ORA-28119: policy group does not exist

  • OceanBase error code: 9734
  • SQLSTATE: HY000
  • Cause: The strategy group does not exist.

Note

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

ORA-28120: driving context already exists

  • OceanBase error code: 9735
  • SQLSTATE: HY000
  • Cause: The driving context already exists.

Note

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

ORA-28121: driving context does not exist

  • OceanBase error code: 9736
  • SQLSTATE: HY000
  • Cause: The driving context does not exist.

Note

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

ORA-28122: can not update SYS_DEFAULT policy group

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

ORA-28115: policy with check option violation

  • OceanBase error code: 5789

  • SQLSTATE: HY000

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

Note

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

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

  • OceanBase error code: 9687

  • SQLSTATE: HY000

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

ORA-28264: Client identifier is too long

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

ORA-28268: Invalid NameSpace Value

  • OceanBase error code: 9689

  • SQLSTATE: HY000

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

Note

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

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

  • OceanBase error code: 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.

ORA-29257: host %.*s unknown

  • OceanBase error code: 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.

ORA-29261: bad argument

  • OceanBase error code: 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.

ORA-29295: invalid mime header tag

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 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.

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

  • OceanBase error code: 4704

  • SQLSTATE: HY000

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

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

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

  • OceanBase error code: 4705

  • SQLSTATE: HY000

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

  • Solution: Specify an existing plan directive.

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

  • OceanBase error code: 4706

  • SQLSTATE: HY000

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

  • Solution: Use another value and try again.

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

  • OceanBase error code: 4707

  • SQLSTATE: HY000

  • Cause: The plan directive name is not supported.

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

  • OceanBase error code: 4710

  • SQLSTATE: HY000

  • Cause: A nonexistent consumer group is specified.

  • Solution: Specify an existing consumer group.

ORA-29471: DBMS_SQL access denied

  • OceanBase error code: 5856

  • SQLSTATE: HY000

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

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

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

  • OceanBase error code: 9677

  • SQLSTATE: HY000

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

  • Solution: Specify a valid security level.

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ORA-20000: The stored procedure 'raise_application_error' was called which causes this error to be generated", "ORA%06ld: %.*s
ORA-21000: error number argument to raise_application_error of stringstring is out of range
ORA-21560: argument %.*s is null, invalid, or out of range
ORA-22003: value is out of range
ORA-22369: invalid parameter encountered in method %s
ORA-22370: incorrect usage of method %s
ORA-22625: OCIAnyData is not well-formed
ORA-22626: Type Mismatch while constructing or accessing OCIAnyData
ORA-22627: tc [%s] must be that of object/varray/nested table
ORA-22806: not an object or REF
ORA-22816: unsupported feature with RETURNING clause
ORA-22858: invalid alteration of datatype
ORA-22859: invalid modification of columns
ORA-22859: Expected XML tag, got no content
ORA-22903: MULTISET expression not allowed
ORA-22907: invalid CAST to a type that is not a nested table or VARRAY
ORA-22922: LOB value does not exist
ORA-22928: invalid privilege on directories
ORA-22950: cannot ORDER objects without MAP or ORDER method
ORA-22990: LOB locators cannot span transactions
ORA-22998: CLOB or NCLOB in multibyte character set not supported
ORA-23481: unexpected name string'%.*s'
ORA-24234: unable to get source of string \'%.*s\'.\'%.*s\', insufficient privileges or does not exist
ORA-24235: bad value for object type: %.*s
ORA-24236: source text is empty
ORA-24334: no descriptor for this position
ORA-24381: error(s) in array DML
ORA-24761: transaction rolled back
ORA-24761: transaction rolled back: transaction context does not exist
ORA-24761: transaction rolled back: transaction is killed
ORA-24761: transaction rolled back: partition is frozen
ORA-24761: transaction rolled back: Transaction exiting
ORA-24761: transaction rolled back: transaction needs rollback
ORA-24761: transaction rolled back: transaction idle timeout
ORA-24761: transaction rolled back: transaction context count reach limit
ORA-25002: cannot create INSTEAD OF triggers on tables
ORA-25004: WHEN clause is not allowed in INSTEAD OF triggers
ORA-25005: cannot CREATE INSTEAD OF trigger on a read-only view
ORA-25009: Nested tableclause allowed only for INSTEAD OF triggers
ORA-25021: cannot reference a trigger defined on another table
ORA-25022: cannot reference a trigger of a different type
ORA-25023: Cyclic trigger dependency is not allowed
ORA-25025: cannot specify PRECEDES clause
ORA-25128: No insert/update/delete on table with constraint disabled and validated
ORA-25129: cannot modify constraint (%.*s) - no such constraint
ORA-25137: Data value %s out of range in '%s'
ORA-25154: Column part of using clause can not have qualifier
ORA-25156: old style outer join (+) cannot be used with ANSI joins
ORA-25405: Transaction state unknown
ORA-28001: the password has expired
ORA-28101: policy already exists
ORA-28102: policy does not exist
ORA-28103: adding a policy to an object owned by SYS is not allowed
ORA-28104: input value for %s is not valid
ORA-28105: cannot create security relevant column policy in an object view
ORA-28106: input value for argument %s is not valid
ORA-28107: policy was disabled
ORA-28108: circular security policies detected
ORA-28109: the number of related policies has exceeded the limit of 16
ORA-28110: policy function or package %.*s.%.*s has error
ORA-28111: insufficient privilege to evaluate policy predicate
ORA-28112: failed to execute policy function
ORA-28113: policy predicate has error
ORA-28116: insufficient privileges to do direct path access
ORA-28117: integrity constraint violated * parent record not found
ORA-28118: policy group already exists
ORA-28119: policy group does not exist
ORA-28120: driving context already exists
ORA-28121: driving context does not exist
ORA-28122: can not update SYS_DEFAULT policy group
ORA-28123: Driving context %.*s,%.*s contains invalid group %.*s
ORA-28124: Column %.*s in sec_relevant_cols cannot be of an object data type
ORA-28125: A protected base column was referenced in an unprotected virtual column expression
ORA-28126: Attribute association failed for policy %.*s
ORA-28132: The MERGE INTO syntax does not support the security policy
ORA-28115: policy with check option violation
ORA-28106: input value for argument #%d is not valid
ORA-28264: Client identifier is too long
ORA-28265: Namespace beginning with 'SYS_' is not allowed
ORA-28267: The maximum size specified by the _session_context_size parameter was exceeded
ORA-28268: Invalid NameSpace Value
ORA-29253: Invalid count argument passed to procedure dbms_sql.define_array
ORA-29257: host %.*s unknown
ORA-29261: bad argument
ORA-29295: invalid mime header tag
ORA-29357: %s %.*s already exists
ORA-29358: resource plan %.*s does not exist
ORA-29361: value %ld for %s is outside valid range of 0 to 100
ORA-29362: plan directive %.*s, %.*s does not exist
ORA-29364: plan directive %.*s, %.*s already exists
ORA-29366: plan directive name '%.*s' not supported
ORA-29368: consumer group %.*s does not exist
ORA-29471: DBMS_SQL access denied
ORA-29474: DBMS_SQL.OPEN_CURSOR failed. security_level of 0 is not allowed