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Start on Cloud

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

DEPLOY YOUR WAY

OceanBase Cloud

The best way to deploy and scale OceanBase

OceanBase Enterprise

Run and manage OceanBase on your infra

TRY OPEN SOURCE

OceanBase Community Edition

The free, open-source distributed database

OceanBase seekdb

Open source AI native search database

Customer Stories

Real-world success stories from enterprises across diverse industries.

View All
BY USE CASES

Mission-Critical Transactions

Global & Multicloud Application

Elastic Scaling for Peak Traffic

Real-time Analytics

Active Geo-redundancy

Database Consolidation

Comprehensive knowledge hub for OceanBase.

Blog

Live Demos

Training & Certification

Documentation

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

View All
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OceanBase Database

SQL - V4.3.0

  • What's New
  • What is OceanBase Database
    • Overview
    • Differences between the Enterprise Edition and the Community Edition
    • System architecture
    • Compatibility with Oracle
      • Compatibility with Oracle
      • SQL data types
      • Built-in functions
      • System views
    • Compatibility with MySQL
    • Limitations
  • Get Started
    • Try out OceanBase Database Community Edition
    • Learn OceanBase SQL
      • Before you begin
      • Basic SQL operations (MySQL mode)
      • Basic SQL operations (Oracle mode)
    • Build a sample application (Oracle mode)
      • Build a Java application
      • Build a C application
    • Build a sample application (MySQL mode)
      • Build a Python application
      • Build a Java application
      • Build a C application
      • Build a Go application
    • Try out advanced features of OceanBase Database
      • Scalable OLTP
        • Run the TPC-C benchmark in OceanBase Database
        • Try out the hot row update capability of OceanBase Database
      • Try out operational OLAP
      • Try out parallel import and data compression
      • Try out the multi-tenant feature
    • Video tutorials
  • Develop
    • Develop applications (MySQL mode)
      • Connect to OceanBase Database
        • Overview
        • Connect to an OceanBase tenant by using the mysql client
        • Connect to an OceanBase tenant by using OBClient
        • Connect to OceanBase Database by using ODC
        • Connect to OceanBase Database by using DBeaver
        • Connect to OceanBase Database by using Navicat
        • Use database connection pool
          • Database connection pool configuration
          • Connect to OceanBase Database by using a Tomcat connection pool
          • c3p0
          • Proxool
          • HikariCP
          • DBCP
          • Commons Pool
          • Druid
      • Sample applications
        • Java
          • Spring Boot
          • Spring Batch
          • Spring Data JDBC
          • Spring Data JPA
          • Hibernate
          • MyBatis
          • Connector/J
          • TestContainers
        • Python
          • mysqlclient
          • PyMySQL
          • MySQL-connector-python
        • C
          • MySQL Connector/C
        • Go
          • Go-SQL-Driver/MySQL
          • GORM
        • PHP
          • EXT
          • MySQLi
          • PDO
      • Plan database objects
        • Create a database
        • Create a table group
        • Create a table
        • Create an index
        • Create an external table
      • Write data
        • Insert data
        • Update data
        • Delete data
        • Replace data
        • Generate test data in batches
      • Read data
        • Single-table queries
        • Join tables
          • INNER JOIN queries
          • FULL JOIN queries
          • LEFT JOIN queries
          • RIGHT JOIN queries
          • Subqueries
          • Lateral derived table
        • Use operators and functions in queries
          • Use arithmetic operators in queries
          • Use numerical functions in queries
          • Use string concatenation operators in queries
          • Use string functions in queries
          • Use datetime functions in queries
          • Use type conversion functions in queries
          • Use aggregate functions in queries
          • Use NULL-related functions in queries
          • Use the CASE conditional operator in queries
          • Use the SELECT ... FOR UPDATE statement to lock query results
          • Use the SELECT ... LOCK IN SHARE MODE statement to lock query results
        • Use a DBLink in queries
        • Set operations
      • Transactions
        • Overview
        • Start a transaction
        • Savepoints
          • Mark a savepoint
          • Roll back a transaction to a savepoint
          • Release a savepoint
        • Commit a transaction
        • Roll back a transaction
      • Application errors
        • Troubleshooting guidelines
          • About error codes
          • Error handling specifications for MySQL-compatible applications
        • Common errors and troubleshooting practices
          • Disconnected from the server, with ERROR 2013 reported
          • Idle transaction timed out, with ERROR 6002 reported
          • Transaction timed out, with ERROR 4012 reported
          • User locked, with ERROR 3118 reported
          • Incorrect user password, with ERROR 1045 reported
          • Table already exists, with ERROR 1050 reported
          • Table does not exist, with ERROR 1146 reported
          • Duplicate data inserted, with ERROR 1062 reported
          • ERROR 1215 reported in foreign key addition
          • Data truncated while being inserted, with ERROR 1265 reported
    • Develop applications (Oracle mode)
      • Connect to OceanBase Database
        • Overview
        • Connect to an OceanBase tenant by using OBClient
        • Connect to OceanBase Database by using ODC
        • Use database connection pool
          • Database connection pool configuration
          • Tomcat
          • c3p0
          • Proxool
          • HikariCP
          • DBCP
          • Commons Pool
          • Druid
      • Sample applications
        • Java
          • OceanBase Connector/J
          • Spring Boot
          • Spring Batch
          • Spring Data JDBC
          • Spring Data JPA
          • Hibernate
          • MyBatis
          • JFinal
        • C/C++
          • OceanBase Connector/C
          • OceanBase Connector/ODBC
          • SqlSugar
      • Plan database objects
        • Create a table group
        • Create a table
        • Create an index
        • Create an external table
      • Write data
        • Insert data
        • Update data
        • Delete data
        • Replace data
        • Generate test data in batches
      • Read data
        • Single-table queries
        • Join tables
          • INNER JOIN queries
          • FULL JOIN queries
          • LEFT JOIN queries
          • RIGHT JOIN queries
          • Subqueries
        • Use operators and functions in queries
          • Use arithmetic operators in queries
          • Use numerical functions in queries
          • Use string concatenation operators in queries
          • Use string functions in queries
          • Use datetime functions in queries
          • Use type conversion functions in queries
          • Use aggregate functions in queries
          • Use NULL-related functions in queries
          • Use CASE functions in queries
          • Use the SELECT...FOR UPDATE statement to lock query results
        • Use a DBLink in queries
        • Set operations
      • Transactions
        • Overview
        • Start a transaction
        • Savepoints
          • Mark a savepoint
          • Roll back a transaction to a savepoint
        • Commit a transaction
        • Roll back a transaction
      • Application errors
        • Troubleshooting guidelines
          • About error codes
          • Error handling specifications for Oracle-compatible applications
        • Common errors and troubleshooting practices
          • Idle transaction timed out, with Error ORA-24761 reported
          • Transaction timed out, with Error ORA-00600 reported
          • User locked, with ERROR 3118 reported
          • Incorrect user password, with ERROR 1045 reported
          • Table already exists, with Error ORA-00955 reported
          • Table does not exist, with Error ORA-04043 reported
          • Duplicate data inserted, with Error ORA-00001 reported
          • Error ORA-00600 reported in foreign key addition
          • Inconsistent data types, with Error ORA-00932 reported
  • Deploy
    • Overview
    • High availability deployment solutions for OceanBase clusters
    • Deploy OceanBase Database Enterprise Edition
      • Deployment process
      • Before deployment
        • Prepare servers
        • Server configuration
        • Prepare the installation packages
        • Deploy OAT
      • Deploy through GUI
        • Configure deployment environment using OAT
          • Add a server
        • Deploy OCP
          • Overview
          • Upload installation packages
          • Create MetaDB
          • Deploy OCP
        • Deploy OceanBase clusters using OCP
          • Deploy a two-replica OceanBase cluster with the arbitration service by using OCP
          • Deploy a single-replica OceanBase cluster by using OCP
          • Deploy a three-replica OceanBase cluster by using OCP
        • (Optional) Deploy ODP
      • Deploy through CLI
        • Configure deployment environment
          • Initialize an OBServer node using oatcli
          • (Optional) Configure the clock source
        • Deploy OceanBase clusters using CLI
          • Deploy an OceanBase cluster with two replicas and arbitration service using the CLI
          • Deploy a single-replica OceanBase cluster using the CLI
          • Deploy a three-replica OceanBase cluster using the CLI
        • (Optional) Deploy ODP
    • Deploy OceanBase Database Community Edition
      • Overview
      • Deploy locally
        • Software and hardware requirements
        • Before deployment
          • (Optional) Check resources
          • (Optional) Set password-free SSH 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 OBD
          • Deploy an OceanBase cluster through the GUI of OCP
        • Deploy OceanBase Database in a production environment by using the command line
        • Deploy OceanBase Database by using systemd
      • Deploy OceanBase Database in a Kubernetes cluster
    • Delete old clusters
  • Migrate
    • Overview
    • Migrate from MySQL databases to OceanBase Database
      • Use OMS to migrate data from a MySQL database to a MySQL tenant of OceanBase Database
      • Use mydumper and myloader to migrate data from a MySQL database to OceanBase Database
      • Use DBCAT to migrate schemas from a MySQL database to OceanBase Database
      • Use DataX to migrate table data from a MySQL database to OceanBase Database
      • Migrate data from a MySQL database to OceanBase Database using CloudCanal
      • Use Canal to synchronize data from a MySQL database to OceanBase Database
      • Use Flink CDC to synchronize data from a MySQL database to OceanBase Database
      • Use ChunJun to migrate data from a MySQL database to OceanBase Database
    • Migrate from OceanBase Database to MySQL databases
      • Use OMS to migrate data from a MySQL tenant of OceanBase Database to a MySQL database
      • Use OMS to migrate incremental data from an Oracle tenant of OceanBase Database to a MySQL database
      • Use DBCAT to migrate schemas from OceanBase Database to a MySQL database
      • Use DataX to migrate table data from OceanBase Database to a MySQL database
      • Synchronize data from OceanBase Database to a MySQL database using Canal
      • Migrate data from a MySQL OceanBase database to a MySQL database using CloudCanal
      • Use Flink CDC to migrate data from OceanBase Database to a MySQL database
      • Migrate data from a MySQL database in OceanBase Database to a MySQL database using ChunJun
    • Migrate from Oracle databases to OceanBase Database
      • Use OMS to migrate data from an Oracle database to a MySQL tenant of OceanBase Database
      • Use OMS to migrate data from an Oracle database to an Oracle tenant of OceanBase Database
      • Use DBCAT to migrate schemas from an Oracle database to OceanBase Database
      • Use DataX to migrate table data from an Oracle database to OceanBase Database
    • Migrate from OceanBase Database to Oracle databases
      • Use OMS to migrate data from an Oracle tenant of OceanBase Database to an Oracle database
      • Use DBCAT to migrate schemas from OceanBase Database to an Oracle database
      • Use DataX to migrate table data from OceanBase Database to an Oracle database
    • Migrate from DB2 databases to OceanBase Database
      • Use OMS to migrate data from a DB2 LUW database to a MySQL tenant of OceanBase Database
      • Use OMS to migrate data from a DB2 LUW database to an Oracle tenant of OceanBase Database
      • Use DBCAT to migrate table schemas from a DB2 LUW database to OceanBase Database
    • Migrate from OceanBase Database to DB2 databases
      • Use OMS to migrate data from a MySQL tenant of OceanBase Database to a DB2 LUW database
      • Use OMS to migrate data from an Oracle tenant of OceanBase Database to a DB2 LUW database
    • Migrate from TiDB databases to OceanBase Database
      • Use OMS to migrate data from a TiDB database to a MySQL tenant of OceanBase Database
    • Migrate from PostgreSQL databases to OceanBase Database
      • Use OMS to migrate data from a PostgreSQL database to a MySQL tenant of OceanBase Database
    • Migrate from CSV files to OceanBase Database
      • Use DataX to migrate CSV files to OceanBase Database
      • Import data by using the LOAD DATA statement
    • Import data from SQL files to OceanBase Database
    • Migrate data between OceanBase Database
      • Use OMS to migrate data from an OceanBase tenant to another of the same type
      • Use OMS to migrate data from an OceanBase tenant to another of the same type in active-active disaster recovery scenarios
      • Use OBLOADER & OBDUMPER to migrate data between MySQL tenants in OceanBase Database
      • Use OBLOADER & OBDUMPER to migrate data from a MySQL tenant to an Oracle tenant in OceanBase Database
      • Use OBLOADER & OBDUMPER to migrate data between Oracle tenants in OceanBase Database
      • Use OBLOADER & OBDUMPER to migrate data from an Oracle tenant to a MySQL tenant in OceanBase Database
    • Migrate data using SQL statements
      • Migrate data between tables
      • Migrate resource units
      • Export data by using OUTFILE statements
    • Bypass import
      • Overview
      • Import data in bypass mode by using the LOAD DATA statement
      • Import data in bypass mode by using the INSERT INTO SELECT statement
  • Manage
    • Log on to an OceanBase tenant
    • Manage clusters
      • Overview
      • Cluster parameters
      • Common cluster operations
        • View a zone
        • View a node
        • Restart a node
        • Add a node
        • Delete a node
        • Isolate a node
        • Replace a node
        • Add a zone
        • Start a zone
        • Delete a zone
        • Modify a zone
        • Isolate a zone
        • View cluster parameters
        • Modify cluster parameters
        • Reset a cluster parameter
      • Troubleshoot common problems
        • Failures of a minority of nodes
        • Failures of the majority of nodes
    • Manage tenants
      • Tenant introduction
      • Tenant capacity
      • Tenant types
      • User tenant introduction
      • Tenant system variables
      • Common tenant operations
        • Create a tenant
        • Resource isolation
          • Resource isolation overview
          • Manage resource isolation (Oracle mode)
            • Configure cgroups
            • Calibrate the disk performance
            • Configure user-level resource isolation
            • 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
          • Manage resource isolation (MySQL mode)
            • Configure cgroups
            • Calibrate the disk performance
            • Configure user-level resource isolation
            • 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
        • Clone a tenant
        • Cancel tenant cloning
        • 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
    • Manage replicas
      • Overview
      • Replica distribution
        • Locality
        • Common locality operations
          • View locality
          • Modify locality
          • Add replicas
          • Remove replicas
          • Adjust the distribution of replicas
          • View the locality change history
          • Migrate units
      • Traffic distribution
      • Data distribution
    • High availability
      • High availability overview
      • Multi-replica disaster recovery
        • Data link introduction
        • ODP high availability
        • Database-level high availability
        • Disaster recovery architecture and levels
      • Physical standby database disaster recovery
        • Overview
        • Limitations
        • Create a standby tenant
          • Preparations
          • Create an empty standby tenant
          • Create a standby tenant by using the backup and recovery feature
          • Create a standby tenant by using the BACKUP DATABASE PLUS ARCHIVELOG feature
        • Log transmission service
          • Overview
          • Configure log transmission service
            • Configure the 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
          • Overview of tenant roles
          • Switchover
          • Failover
        • Drop primary and standby tenants
      • Arbitration high availability
        • Overview
        • Enable the arbitration service for a tenant
        • Disable the arbitration service for a tenant
        • Modify the log stream downgrade control time
        • Query log stream upgrade/downgrade information
        • Replace the arbitration service for a cluster
        • Remove the arbitration service for a cluster
        • Clear residual cluster information
      • Manage recycle bin
        • Overview
        • Enable or disable the recycle bin
        • View objects in the recycle bin
        • Restore objects from the recycle bin
        • Purge the recycle bin
      • Flashback queries
    • Security and permissions
      • Overview
      • Identification and authentication
        • MySQL mode
          • Identity authentication
          • Password complexity
          • Logon failure processing
        • Oracle mode
          • Identity authentication
          • Password complexity
          • Logon failure processing
      • Access control
        • Overview
        • Users and permissions
          • Overview
          • MySQL mode
            • Create a user
            • Privilege types in MySQL mode
            • Grant privileges
            • Privilege delegation
            • Query user privileges
            • Modify user privileges
            • Lock or unlock a user
            • Drop a user
          • Oracle mode
            • Privilege types in Oracle mode
            • Create a user
            • View the information of a user
            • Grant direct privileges
            • Privilege delegation
            • Manage roles
              • Overview
              • Create a role
              • Grant a role to another role
              • Grant a role to a user
              • Activate or deactivate roles for a user
              • View roles
              • Modify a role
              • Revoke a role
              • Drop a role
            • Grant indirect privileges
            • Query user privileges
            • Modify user privileges
            • Lock or unlock a user
            • Drop a user
        • Network security access control
        • Row-level access control
        • RPC connection authentication
      • Data transmission encryption
        • Overview
        • OBServer transmission encryption
        • ODP transmission encryption
      • Transparent data encryption
        • Overview
        • MySQL mode
          • Enable transparent data encryption for new tables
          • Enable transparent data encryption for existing tables
          • Decrypt a table
        • Oracle mode
          • Enable transparent data encryption for new tables
          • Enable transparent data encryption for existing tables
          • Decrypt a table
      • 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
    • Backup and restore
      • Introduction to physical backup and restore
      • Experience physical backup and restore with simplified deployment
      • Deploy NFS
      • Log archive
        • Overview
        • Prepare for log archiving
        • Enable ARCHIVELOG
        • Suspend archiving
        • Disable ARCHIVELOG
        • View information about pieces
        • View the archiving progress
        • View the archiving history
        • View archiving parameter settings
        • Change the log archive destination
        • Views related to log archiving
      • Data backup
        • Overview
        • Prepare for the backup
        • 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 for monitoring backup progress and results
      • Clear backup data
        • Automatic cleanup of expired backups
        • Stop backup cleanup
        • Query the backup cleanup progress
        • Query the backup cleanup history
        • Backup cleanup parameter
        • Views related to backup cleanup
      • Restore data
        • Preparations
        • Perform physical restore
        • Cancel physical restore
        • View the physical restore progress
        • View physical restore results
        • Replay logs to a standby tenant
        • Convert a standby tenant into primary tenant
        • Upgrade a tenant after restore
        • Physical restore parameters
        • Views related to physical restore
      • Restore by table
        • Preparations
        • Restore data by table
        • Cancel table restore
        • View the table restore progress
        • View the table restore result
        • Parameters related to table restore
        • Views related to table restore
      • Optimize backup and restore performance
    • Monitor
      • Overview
      • Metrics
        • System monitoring
          • Overview
          • Metrics
          • Wait events
          • Latch events
        • SQL monitoring
          • Overview
          • SQL audit
          • Execution plans
      • Cases
    • Logs
      • Overview
      • Log levels
      • Log stability
      • Log control
      • Log metrics
      • View logs
        • Search for the logs of a specific SQL request
        • Query the log of a previous SQL request by using the SQL Trace feature
    • 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 plan
            • Buffer tables
            • Cardinality
          • Hard parsing
          • Capacity issues
          • Internal wait events
      • SQL tuning
        • SQL tuning system
        • Execution plan optimization
          • Statistical information and row estimation
            • Overview
            • Statistical information
              • Overview
              • Collect statistical information
                • Overview
                • Manually collect statistics
                • Automatic statistics collection
              • Query statistics
              • Manage statistical information
                • Overview
                • Delete and set statistics
                • Import and export statistics
                • Lock statistics
                • Query historical versions of statistics and roll back to a specified version
                • Configure statistics collection strategies
            • Row estimation
              • Overview
              • Row estimation based on the selectivity
              • Row estimation based on the storage layer
            • Use statistical information and row estimation
          • Plan management
            • Plan cache
            • Disadvantages of the plan cache and countermeasures
            • Views related to the plan cache
          • Index selection
            • Overview
            • Reduce row reads
            • Avoid table access by index primary key
            • Avoid sorting
          • Join order and join algorithm
            • Joins
            • Join algorithm
              • Nested loop joins
              • Hash joins
              • Merge joins
              • Common business issues
            • Join types
            • Join order
          • Order and limit optimization
            • Overview
            • SORT assignment and optimization
            • Optimization in ORDER BY + LIMIT scenarios
        • Business logic optimization
          • SQL specifications
          • Schema specifications
        • Locate and analyze slow queries I
        • Locate and analyze slow queries (II)
        • Typical scenarios and cases
    • Daily inspection
      • Overview
      • Check cluster parameters
      • Check the host status
      • Check tenant resource usage
      • Check cluster resource usage
      • Check the OBServer node status
      • Check the NTP offset
      • Deadlock detection
      • End-to-end tracing
        • Overview
        • Process
        • Methods
        • Show end-to-end tracing information
    • Troubleshooting
      • Overview
      • Bootstrap
      • Storage
        • Minor compaction and major compaction
        • Memory-related errors
        • Migration, replication, and rebuild tasks
      • Election
        • Election
        • Leader switchover exceptions
        • Absence of the leader
      • Transaction
        • Transaction-related errors
        • Transaction rollbacks
        • Long-running transactions
        • Suspended transactions
        • Idle transactions
      • Log synchronization-related errors
      • Physical standby database
        • Log synchronization stuck for the physical standby database
        • Switchover failures
      • Backup and restore
        • Data backup failures
        • Physical restore failures
      • Troubleshoot SQL execution errors
      • Application exception -- error message does not contain OceanBase error code
      • Application exception -- error message contains an OceanBase error code
    • Emergency response
      • Emergency response overview
      • Analysis, diagnosis, and decision-making procedure
      • Common emergency problem handling
        • Hardware issues
          • Node failure
          • Network failure
          • ODP failure
          • Other hardware and network issues
        • Capacity issues
          • Exceptions of SQL queries
          • Node disk I/O high
          • Node network card overload
          • Tenant memory full
          • obproxy thread exhaustion
          • Node clog disk full
          • Node data disk full
          • Tenant request queue backlog
        • Other cluster issues
          • sys tenant or RootService exceptions
          • Insufficiency or leakage of system memory
  • Reference
    • System principles
      • Overall architecture of OceanBase Database
      • Development of OceanBase Database
      • Multi-tenant architecture
        • Overview
        • Compatibility modes
        • Tenants
        • Tenants and resource management
          • Tenant resource management
          • Multi-tenant resource isolation
          • Resource unit balancing
      • Database objects
        • Oracle mode
          • Introduction
            • Overview
            • Database object types
            • Database object storage
            • Dependencies between database objects
          • Tables
            • Overview
            • Data type
              • Overview
              • Character data types
              • Numeric data types
              • Datetime data types
              • ROWID data types
              • LOB data types
              • Multi-model data types
              • Format model
                • Overview
                • Number format models
                • Datetime format models
            • Integrity constraints
            • Table storage
            • Table compression
            • Partitioned table
            • Tables with and without a primary key
            • Temporary tables
          • Indexes
            • Overview
            • Local and global indexes
            • Unique and non-unique indexes
            • Use indexes
            • Index storage
          • Partitions
            • Overview
            • Partitioning keys
            • Partitioning types
            • Partitioned indexes
          • Views
            • Views in a database
            • Standard views
              • Standard views
              • Overview
              • OceanBase-specific views
              • Oracle-compatible views
              • View operations and data access
            • Materialized views
              • Materialized views
              • Materialized view logs
              • Creation and update strategies for materialized views
          • Other objects
            • Sequences
            • Synonyms
          • System views
            • Dictionary views
            • Performance views
          • Data integrity
            • Overview
            • Integrity constraint type
              • Overview
              • NOT NULL constraints
              • UNIQUE KEY constraints
              • PRIMARY KEY constraints
              • FOREIGN KEY constraints
              • CHECK constraints
            • Use of integrity constraints
        • MySQL mode
          • Introduction
            • Overview
            • Database object types
            • Database object storage
            • Dependencies between database objects
          • Tables
            • Overview
            • Data type
              • Overview
              • Numeric data types
              • Datetime data types
              • Character data types
              • LOB data types
              • Multi-model data types
              • Spatial data types
              • JSON data types
            • Integrity constraints
            • Table storage
            • Table compression
            • Partitioned table
            • Tables with and without a primary key
          • Indexes
            • About indexes
            • Local and global indexes
            • Unique and non-unique indexes
            • Spatial indexes
            • Use indexes
            • Index storage
          • Partitions
            • Overview
            • Partitioning keys
            • Partitioning types
            • Partitioned indexes
          • Views
            • Views in a database
            • Standard views
              • Overview
              • Overview
              • OceanBase-specific views
              • MySQL-compatible views
              • Oracle-compatible views in MySQL tenants
              • Oracle-compatible views in the sys tenant
              • View operations and data access
            • Materialized views
              • Materialized views
              • Materialized view logs
              • Creation and update strategies for materialized views
          • System views
            • Dictionary views
            • Performance views
          • Data integrity
            • Overview
            • Integrity constraint type
              • Overview
              • NOT NULL constraints
              • UNIQUE KEY constraints
              • PRIMARY KEY constraints
              • FOREIGN KEY constraints
            • Use of integrity constraints
      • Distributed database objects
        • Overview
        • Cluster architecture
        • Data partitions and replicas
          • Overview
          • Log streams
          • Partition replica type
            • Overview
            • Full-featured replica
            • Read-only replicas
          • Multi-replica consensus protocols
          • Data balancing
            • Intra-tenant balancing
            • Views and parameters related to data balancing
        • Dynamic scaling
          • Cluster scaling
          • Tenant resource scaling
            • Overview
            • Horizontal scaling of tenant resources
            • Vertical scaling of tenant resources
            • Cross-zone management of tenant resources
      • Data link
        • Overview
        • Database proxy
          • Overview
          • SQL routing
          • Connection management
          • ODP configuration management
          • Logs and monitoring
        • Database connector
          • Overview
          • OBCI
          • OceanBase Connector/J
          • OceanBase Connector/C
      • User interface and query language
        • SQL
          • Introduction
            • Overview
            • SQL data access
            • SQL standards
          • SQL statements
            • Overview
            • DDL statements
            • DML statements
            • DCL statements
          • Execution process of SQL queries
          • Query SQL execution plans
          • Distributed execution plan
            • Perform distributed execution and parallel queries
            • Generate distributed execution plans
            • Run and disable a parallel query
            • Manage distributed execution plans
            • Perform parameter tuning for a parallel query
        • PL
          • PL concepts
            • Oracle mode
              • Subprograms
              • Stored procedures
              • Functions
              • Triggers
              • Packages
            • MySQL mode
              • Subprograms
              • Stored procedures
              • Functions
              • Triggers
          • PL subprogram execution mechanism
        • Client programming languages
      • Transaction management
        • Transaction
          • Overview
          • Transaction structure
          • Statement-level atomicity
          • GTS
          • Transaction control
            • Overview
            • Active transactions
            • Savepoint
            • Transaction control statements
              • MySQL transaction control
              • Oracle transaction control
          • Redo logs
          • Local transactions
          • Distributed transaction
            • Overview
            • Two-phase commit
          • XA transactions
        • Transaction concurrency and consistency
          • Overview
          • Multi-version read consistency
          • Concurrency control
            • Overview
            • Lock mechanism
          • Transaction isolation level
            • Overview
            • Transaction isolation levels in Oracle mode
            • Transaction isolation levels in MySQL mode
          • Weak consistency read
      • Storage architecture
        • Overview
        • Data storage
          • Overview
          • MemTables
          • SSTables
          • Columnar storage
          • Compression and encoding
        • Compaction
          • Overview
          • Minor compaction
          • Major compaction
        • Multi-level caches
        • Query processing
        • Data integrity
          • Detect silent data corruption
      • Data reliability and high availability
        • High availability architecture
          • Overview
          • ODP high availability
          • Leader election in distributed systems
          • Multi-replica log synchronization
          • Paxos protocol
          • Automatic handling of node failures
        • Deployment solutions for disaster recovery
        • Data protection
          • Overview
          • Flashback queries
          • Recycle bin
        • Backup and restore
          • Overview
          • Backup directory structures
          • Backup architecture
          • Restore architecture
        • Arbitration-based high availability solution
        • Physical Standby Database solution
      • Database security
        • Overview
        • Authentication
        • Access control
        • Data transmission encryption
        • Data storage encryption
        • Monitoring and alerting
        • Security audit
      • OBServer node architecture
        • Structure of the OBServer node installation directory
        • Configuration files
        • observer thread model
          • Threads
          • Worker threads
          • Background threads
        • Logs
        • Memory management
          • Overview
          • Memory-related parameters
          • Memory-related views
          • Memory usage logs
          • Diagnose memory errors
    • System management
      • Configuration management
        • Overview
        • Set parameters
        • Set variables
      • Storage management
        • Minor compaction management
          • Overview
          • Automatically trigger a minor compaction
          • Manually initiate a minor compaction
          • View dump information
          • Modify minor compaction parameters
        • Major compaction management
          • Overview
          • Automatically trigger a major compaction
          • Configure scheduled major compactions
          • Adaptive major compaction
          • Manually initiate a major compaction
          • View merge information
          • Manually control a major compaction
          • Modify major compaction settings
        • Data compression
          • Overview
          • Data encoding and compression
      • Memory management
        • Overview
        • Memory structure
        • Set the maximum memory for an OceanBase database
        • Manage internal system memory
        • Memory management within a tenant
        • Manage the memory of the plan cache
        • Memleak-based regular memory leak diagnostics mechanism
        • Query memory usage information
        • Common memory issues
      • Process management
        • Overview
        • Multi-tenant threads of OceanBase Database
        • View the thread status
        • Background threads of OceanBase Database
        • FAQ about multi-tenant threads
      • Disk management
        • Configure automatic scale-out of disk space for data files
    • Database object management
      • Overview
      • MySQL mode
        • Create and manage databases
          • Create a database
          • View databases
          • Modify a database
          • Drop a database
        • Create and manage tables
          • Overview
          • Create a table
          • Column skip index attribute
          • Define an auto-increment column
          • Define column constraints
          • Query the table definition
          • Modify a table
          • Empty a table
          • Drop a table
          • Lock a table
          • Create and manage external tables
            • Overview
            • Create an external table
            • Manage external files
        • Create and manage partitions
          • Overview
          • Create a partitioned table
          • Modify partitioning rules
          • Add a partition
          • Drop a partition
          • Truncate a partition
          • Partition pruning
          • Query data in specified partitions
          • Create indexes on partitioned tables
            • Overview
            • Local indexes
            • Global indexes
        • Create and manage table groups
          • Overview
          • Create a table group
          • Query information about a table group
          • Add tables to a table group
          • Modify the SHARDING attribute of a table group
          • Manage tables in a table group
          • Drop a table group
        • Create and manage indexes
          • Overview
          • Create an index
          • Query indexes
          • Monitor indexes
          • Drop an index
          • System functions supported for function-based indexes
          • System functions not supported for function-based indexes
        • Manage views
          • Manage standard views
          • Manage materialized views
            • Materialized views
              • Overview
              • Create a materialized view
              • Query a materialized view
              • Drop a materialized view
              • Refresh a materialized view
            • Materialized view logs
              • Overview
              • Create a materialized view log
              • Drop a materialized view log
        • Create and manage sequences
          • Create a sequence
          • Query sequences
          • Reference a sequence
          • Modify a sequence
          • Drop a sequence
        • Create and manage triggers
          • Overview
          • Create a DML trigger
          • Query trigger information
          • Drop a trigger
        • Create and manage DBLinks
          • Create a DBLink
          • Query a DBLink
          • Use a DBLink to access data in a remote database
          • Drop a DBLink
      • Oracle mode
        • Create and manage tables
          • Overview
          • Create a table
          • Column skip index attribute
          • 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
            • Overview
            • Create an external table
            • Manage external files
        • Create and manage partitions
          • Overview
          • Create a partitioned table
          • Modify partitioning rules
          • Rename a partition
          • Add a partition
          • Drop a partition
          • Truncate a partition
          • Partition pruning
          • Query data in specified partitions
          • Create indexes on partitioned tables
            • Overview
            • Local indexes
            • Global indexes
        • Create and manage table groups
          • Overview
          • Create a table group
          • Query information about a table group
          • Add tables to a table group
          • Modify the SHARDING attribute of a table group
          • Manage tables in a table group
          • Drop a table group
        • Create and manage indexes
          • Overview
          • Create an index
          • Query indexes
          • Monitor indexes
          • Drop an index
          • System functions supported for function-based indexes
          • System functions not supported for function-based indexes
        • Manage views
          • Manage standard views
          • Manage materialized views
            • Materialized views
              • Overview
              • Create a materialized view
              • Query a materialized view
              • Drop a materialized view
              • Refresh a materialized view
            • Materialized view logs
              • Overview
              • Create a materialized view log
              • Drop a materialized view log
        • Manage sequences
        • Manage synonyms
        • Create and manage triggers
          • Overview
          • Create a DML trigger
          • Create an INSTEAD OF trigger
          • Create a composite trigger
          • Modify and drop a trigger
          • Disable or enable a trigger
          • Query trigger information
        • Manage directory objects
        • Create and manage DBLinks
          • Create a DBLink
          • Query existing DBLinks
          • Use a DBLink to access data in a remote database
          • Use a DBLink to modify data in a remote database
          • Drop a DBLink
          • Install and configure OCI
    • Database design specifications and practices
      • Object naming conventions
        • Overview
        • Tenant naming conventions
        • User naming conventions
        • Table naming conventions
        • Field naming conventions
        • Other naming conventions
      • Object structure design specifications
        • Field design
        • Table structure design
        • Partitioned table design
        • Index design
        • Other structural designs
      • Character set specifications
      • Database connection specifications
      • Comments
      • ORM conventions
      • Exception handling
    • SQL reference
      • SQL syntax
        • System tenants
          • Overview
          • ALTER SYSTEM
            • ACTIVATE STANDBY
            • SET LOG_ARCHIVE_DEST
            • SET LOG_ARCHIVE_DEST_STATE
            • ARCHIVELOG
            • NOARCHIVELOG
            • ARBITRATION
            • BOOTSTRAP
            • BACKUP KEY
            • BACKUP
            • BALANCE TASK
            • CANCEL BACKUP
            • CANCEL CLONE
            • CANCEL DELETE BACKUP
            • CANCEL MIGRATE UNIT
            • CHANGE TENANT
            • CANCEL RESTORE
            • CANCEL RECOVER TABLE
            • MAJOR and MINOR
            • MIGRATE UNIT
            • DELETE BACKUP POLICY
            • FLUSH PLAN CACHE
            • JOB
            • SET LOG_RESTORE_SOURCE
            • PARAMETER
            • RECOVER STANDBY
            • RECOVER STANDBY CANCEL
            • REFRESH
            • RESTORE
            • RECOVER TABLE
            • SET DATA_BACKUP_DEST
            • SERVER
            • SWITCHOVER
            • THROTTLE
            • WASH MEMORY FRAGMENTATION
            • ZONE
          • ALTER RESOURCE POOL
          • ALTER RESOURCE TENANT
          • ALTER RESOURCE UNIT
          • ALTER TENANT
          • CREATE RESOURCE POOL
          • CREATE RESOURCE UNIT
          • CREATE TENANT
          • CREATE STANDBY TENANT
          • DROP RESOURCE POOL
          • DROP RESOURCE UNIT
          • DROP TENANT
          • SET DECRYPTION
          • SET ENCRYPTION
        • User tenants (MySQL mode)
          • Basic elements
            • Data types
              • Overview
              • Numeric types
                • Overview
                • Integer data types
                • Fixed-point data types
                • Floating-point data types
                • Bit value data type
              • Datetime types
                • Overview
                • DATE, DATETIME, and TIMESTAMP types
                • TIME type
                • YEAR type
              • String types
                • Overview
                • CHAR and VARCHAR
                • BINARY and VARBINARY
              • Large objects and text types
                • Overview
                • BLOB types
                • TEXT types
                • LOB type
              • ENUM type
              • SET type
              • JSON data types
                • Overview
                • Create a JSON value
                • Query and modify JSON values
                • Convert a JSON data type
              • Spatial data types
                • Overview
                • SRS
                • Create a spatial column
                • Create a spatial index
                • Spatial data formats
            • Expressions
              • Overview
              • Expression syntax
              • Convert data types in expression evaluation
            • 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
              • Numbers
              • Datetime values
              • Bit values
              • Boolean values
              • NULLs
            • 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
                • ADDDATE
                • CONVERT_TZ
                • CURDATE
                • CURRENT_DATE
                • CURRENT_TIME
                • CURRENT_TIMESTAMP
                • CURTIME
                • DATE
                • DATE_ADD
                • DATE_FORMAT
                • DATE_SUB
                • DATEDIFF
                • DAYOFMONTH
                • DAYOFWEEK
                • DAYOFYEAR
                • EXTRACT
                • FROM_DAYS
                • FROM_UNIXTIME
                • GET_FORMAT
                • HOUR
                • LAST_DAY
                • LOCALTIME
                • LOCALTIMESTAMP
                • MAKEDATE
                • MAKETIME
                • MICROSECOND
                • MINUTE
                • MONTH
                • MONTHNAME
                • NOW
                • PERIOD_ADD
                • PERIOD_DIFF
                • QUARTER
                • SEC_TO_TIME
                • SECOND
                • STR_TO_DATE
                • SUBDATE
                • SUBTIME
                • SYSDATE
                • TIME
                • TIME_FORMAT
                • TIME_TO_SEC
                • TIME_TO_USEC
                • TIMEDIFF
                • TIMESTAMP
                • TIMESTAMPADD
                • TIMESTAMPDIFF
                • TO_DAYS
                • TO_SECONDS
                • UNIX_TIMESTAMP
                • USEC_TO_TIME
                • UTC_DATE
                • UTC_TIME
                • UTC_TIMESTAMP
                • WEEK
                • WEEKDAY
                • WEEKOFYEAR
                • YEARWEEK
                • YEAR
                • ADDTIME
                • DAYNAME
                • DAY
              • String functions
                • ASCII
                • BIN
                • BIT_LENGTH
                • CHAR
                • CHAR_LENGTH
                • CHARACTER_LENGTH
                • CONCAT
                • CONCAT_WS
                • ELT
                • EXPORT_SET
                • FIELD
                • FIND_IN_SET
                • FORMAT
                • HEX
                • INSERT
                • INSTR
                • INT2IP
                • IP2INT
                • LCASE
                • LEFT
                • LENGTH
                • LOCATE
                • LOWER
                • LPAD
                • LTRIM
                • MAKE_SET
                • MID
                • OCT
                • OCTET_LENGTH
                • ORD
                • POSITION
                • QUOTE
                • REGEXP
                • REGEXP_INSTR
                • REGEXP_LIKE
                • REGEXP_REPLACE
                • REGEXP_SUBSTR
                • REPEAT
                • REPLACE
                • REVERSE
                • RIGHT
                • RLIKE
                • RPAD
                • RTRIM
                • SPACE
                • STRCMP
                • SUBSTR
                • SUBSTRING
                • SUBSTRING_INDEX
                • TRIM
                • UCASE
                • UNHEX
                • UPPER
                • WEIGHT_STRING
                • TO_BASE64
                • FROM_BASE64
                • SOUNDEX
              • Conversion functions
                • CAST
                • CONVERT
                • SCN_TO_TIMESTAMP
                • TIMESTAMP_TO_SCN
              • Mathematical functions
                • ABS
                • ACOS
                • ASIN
                • ATAN
                • ATAN2
                • BIT_COUNT
                • CEIL
                • CEILING
                • CONV
                • COS
                • COT
                • CRC32
                • DEGREES
                • EXP
                • FLOOR
                • GENERATOR
                • LN
                • LOG
                • LOG10
                • LOG2
                • MOD
                • NEG
                • PI
                • NORMAL
                • POW
                • POWER
                • RADIANS
                • RAND
                • RANDOM
                • RANDSTR
                • ROUND
                • SIGN
                • SIN
                • SQRT
                • TAN
                • TRUNCATE
                • UNIFORM
                • ZIPF
              • Comparison functions
                • GREATEST
                • INTERVAL
                • ISNULL
                • LEAST
              • Process control functions
                • CASE
                • IF
                • IFNULL
                • NULLIF
                • ORA_DECODE
            • Aggregate functions
              • APPROX_COUNT_DISTINCT
              • AVG
              • BIT_AND
              • BIT_OR
              • BIT_XOR
              • COUNT
              • GROUP_CONCAT
              • GROUPING
              • MAX
              • MIN
              • STD
              • STDDEV
              • STDDEV_POP
              • STDDEV_SAMP
              • SUM
              • VAR_POP
              • VAR_SAMP
              • VARIANCE
            • Analysis functions
              • APPROX_COUNT_DISTINCT
              • AVG
              • BIT_AND
              • BIT_OR
              • BIT_XOR
              • COUNT
              • CUME_DIST
              • DENSE_RANK
              • FIRST_VALUE
              • LAG
              • LAST_VALUE
              • LEAD
              • MAX
              • MIN
              • NTH_VALUE
              • NTILE
              • PERCENT_RANK
              • RANK
              • ROW_NUMBER
              • STD
              • STDDEV
              • STDDEV_POP
              • STDDEV_SAMP
              • SUM
              • VAR_POP
              • VAR_SAMP
              • VARIANCE
            • Encryption functions
              • AES_DECRYPT
              • AES_ENCRYPT
              • COMPRESS
              • DECODE
              • DES_DECRYPT
              • DES_ENCRYPT
              • ENCODE
              • ENCRYPT
              • MD5
              • UNCOMPRESS
              • UNCOMPRESSED_LENGTH
              • RANDOM_BYTES
              • SHA
              • SHA1
              • SHA2
              • VALIDATE_PASSWORD_STRENGTH
            • Information functions
              • BENCHMARK
              • CHARSET
              • COERCIBILITY
              • COLLATION
              • CONNECTION_ID
              • CURRENT_USER
              • DATABASE
              • FOUND_ROWS
              • LAST_INSERT_ID
              • ICU_VERSION
              • OB_TRANSACTION_ID
              • ROW_COUNT
              • SCHEMA
              • SESSION_USER
              • SYSTEM_USER
              • USER
              • VERSION
              • OB_VERSION
            • JSON functions
              • Overview
              • Create JSON text functions
                • JSON_ARRAY
                • JSON_OBJECT
                • JSON_QUOTE
              • Search JSON text functions
                • JSON_CONTAINS
                • JSON_CONTAINS_PATH
                • JSON_EXTRACT
                • JSON_KEYS
                • JSON_OVERLAPS
                • JSON_SEARCH
                • JSON_VALUE
                • MEMBER OF
              • Modify JSON text functions
                • JSON_ARRAY_APPEND
                • JSON_ARRAY_INSERT
                • JSON_INSERT
                • JSON_MERGE
                • JSON_MERGE_PATCH
                • JSON_MERGE_PRESERVE
                • JSON_REMOVE
                • JSON_REPLACE
                • JSON_SET
                • JSON_UNQUOTE
              • Return JSON text property functions
                • JSON_DEPTH
                • JSON_LENGTH
                • JSON_TYPE
                • JSON_VALID
              • JSON_TABLE
              • JSON utility functions
                • JSON_PRETTY
                • JSON_STORAGE_SIZE
              • JSON aggregate functions
                • JSON_ARRAYAGG
                • JSON_OBJECTAGG
            • Spatial functions
              • Functions that create geometry values
              • Spatial operation functions
              • Spatial relation functions
              • Geometry property functions
              • Geometry format conversion 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
            • Overview
            • Subqueries
            • Joins
          • SQL statements
            • General syntax
            • Common Table Expressions
            • ALTER DATABASE
            • ALTER OUTLINE
            • ALTER EXTERNAL TABLE
            • ALTER SEQUENCE
            • MAJOR and MINOR
            • ALTER TABLE
            • ALTER TABLEGROUP
            • ALTER TABLEGROUP
            • ALTER USER
            • ALTER VIEW
            • ANALYZE
            • CREATE DATABASE
            • CREATE DATABASE LINK
            • CREATE INDEX
            • CREATE EXTERNAL TABLE
            • CREATE MATERIALIZED VIEW
            • CREATE MATERIALIZED VIEW LOG
            • CREATE OUTLINE
            • CREATE RESTORE POINT
            • CREATE SEQUENCE
            • CREATE TABLE
            • CREATE TABLEGROUP
            • CREATE TABLESPACE
            • CREATE USER
            • CREATE VIEW
            • DEALLOCATE PREPARE
            • DROP DATABASE LINK
            • DELETE
            • DESCRIBE
            • DROP DATABASE
            • DROP INDEX
            • DROP MATERIALIZED VIEW
            • DROP MATERIALIZED VIEW LOG
            • DROP OUTLINE
            • DROP TABLE
            • DROP TABLEGROUP
            • DROP TABLESPACE
            • 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
              • JOIN clause
              • OVER clause
              • UNION clause
            • SET
            • SET CHARSET
            • SET NAMES
            • SET PASSWORD
            • SET TRANSACTION
            • SHOW
            • TRANSACTION
            • TRUNCATE TABLE
            • UPDATE
            • USE
            • VALUES
          • DDL feature
            • Overview
            • Online and offline DDL operations
            • Index operations
            • Primary key operations
            • Column operations
            • Generated column operations
            • Foreign key operations
            • Table operations
            • Partition operations
            • Column type change rules
            • Conversion rules for numeric data types
        • User tenants (Oracle mode)
          • Introduction to SQL
          • Pseudo columns
            • Overview
            • Hierarchical query pseudocolumns
            • Sequence pseudocolumns
            • ORA_ROWSCN pseudocolumn
            • ROWNUM pseudocolumn
            • ROWID pseudocolumn
          • Basic elements
            • Built-in data types
              • Overview
              • Character data types
                • Overview
                • CHAR data type
                • NCHAR data type
                • NVARCHAR2 data type
                • VARCHAR2 data type
                • VARCHAR data type
              • Numeric data types
                • Overview
                • NUMBER data type
                • FLOAT data type
                • Floating-point numbers
                • Precedence of numeric data types
              • Datetime and interval data types
                • Overview
                • DATE data type
                • TIMESTAMP data type
                • TIMESTAMP WITH TIME ZONE data type
                • TIMESTAMP WITH LOCAL TIME ZONE data type
                • INTERVAL YEAR TO MONTH data type
                • INTERVAL DAY TO SECOND data type
                • Calculation of dates, timestamps, and intervals
              • RAW data type
              • Large object data types
                • Overview
                • BLOB data type
                • CLOB data type
              • Rowid data types
              • User-defined data types
              • Any types
              • JSON data types
                • Overview
                • Create JSON columns
                • Query JSON data
                • Conversion rules for JSON data types
              • XML data types
                • Overview
                • XML data definition
                • Create an XMLType column
                • Query XMLType data
                • Convert XMLType data
            • Data type comparison rules
              • Overview
              • Numeric value comparison rules
              • Date value comparison rules
              • Character value comparison rules
              • Data type precedence
              • Data type conversion rules
              • Security considerations for data conversion
            • Literals
              • Overview
              • Text literals
              • Numeric literals
              • Datetime literals
                • Date literals
                • Timestamp literals
              • Interval literals
            • Format model
              • Overview
              • Number format models
              • Datetime format models
              • RR datetime format element
              • String-to-date conversion rules
            • NULL value
              • Overview
              • NULLs in SQL functions
              • NULLs in comparison conditions
              • NULLs in conditional expressions
            • Annotations
              • Overview
              • Comments 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 objects
              • Schema objects
              • Non-schema objects
            • Database naming conventions
              • Overview
              • Suggestions on schema object names
            • Database object reference methods
              • Overview
              • Reference schema objects
              • Reference objects in a remote database
                • Create a DBLink
                • Reference a DBLink
              • Reference partitioned tables and indexes
              • Reference an attribute or method of an object type
            • Character sets and collations
          • Operators
            • Overview
            • Operator precedence
            • Arithmetic operators
            • Concatenation operator
            • Hierarchical query operators
            • Set operators
            • COLLATE operator
          • Functions
            • Overview
            • Single-row functions
              • Numeric functions
                • ABS
                • ACOS
                • ASIN
                • ATAN
                • ATAN2
                • BITAND
                • CEIL
                • COS
                • COSH
                • EXP
                • FLOOR
                • 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
                • CHR
                • CONCAT
                • INITCAP
                • LOWER
                • LPAD
                • LTRIM
                • NLS_LOWER
                • NLSSORT
                • NLS_UPPER
                • REGEXP_REPLACE
                • REGEXP_SUBSTR
                • REPLACE
                • RPAD
                • RTRIM
                • SUBSTR
                • TRANSLATE
                • TRANSLATE ... USING
                • TRIM
                • UPPER
              • String functions that return numbers
                • ASCII
                • INSTR
                • LENGTH
                • REGEXP_COUNT
                • REGEXP_INSTR
              • Datetime functions
                • ADD_MONTHS
                • CURRENT_DATE
                • CURRENT_TIMESTAMP
                • DBTIMEZONE
                • EXTRACT(datetime)
                • FROM_TZ
                • LAST_DAY
                • LOCALTIMESTAMP
                • MONTHS_BETWEEN
                • NEXT_DAY
                • NUMTODSINTERVAL
                • NUMTOYMINTERVAL
                • ROUND(date)
                • SESSIONTIMEZONE
                • SYS_EXTRACT_UTC
                • SYSDATE
                • SYSTIMESTAMP
                • TO_CHAR(datetime)
                • TO_DSINTERVAL
                • TO_TIMESTAMP
                • TO_TIMESTAMP_TZ
                • TO_YMINTERVAL
                • TRUNC(date)
                • TZ_OFFSET
              • Generic comparison functions
                • GREATEST
                • LEAST
              • Conversion functions
                • ASCIISTR
                • CAST
                • CHARTOROWID
                • CONVERT
                • HEXTORAW
                • NUMTODSINTERVAL
                • NUMTOYMINTERVAL
                • RAWTOHEX
                • ROWIDTOCHAR
                • ROWIDTONCHAR
                • SCN_TO_TIMESTAMP
                • TIMESTAMP_TO_SCN
                • TO_BINARY_DOUBLE
                • TO_BINARY_FLOAT
                • TO_BLOB
                • TO_CHAR(character)
                • TO_CHAR(datetime)
                • TO_CHAR(number)
                • TO_CLOB
                • TO_DATE
                • TO_DSINTERVAL
                • TO_MULTI_BYTE
                • TO_NUMBER
                • TO_NCHAR(character)
                • TO_NCHAR(datetime)
                • TO_NCHAR(number)
                • TO_SINGLE_BYTE
                • TO_TIMESTAMP
                • TO_TIMESTAMP_TZ
                • TO_YMINTERVAL
                • UNISTR
              • Encoding and decoding functions
                • DECODE
                • DUMP
                • ORA_HASH
                • VSIZE
              • Null value related functions
                • COALESCE
                • LNNVL
                • NANVL
                • NULLIF
                • NVL
                • NVL2
              • Environment and identifier functions
                • SYS_CONTEXT
                • SYS_GUID
                • UID
                • USER
                • USERENV
                • OB_VERSION
              • Hierarchical functions
                • SYS_CONNECT_BY_PATH
              • JSON functions
                • Overview
                • Create JSON text functions
                  • JSON_ARRAY
                  • JSON_OBJECT
                  • JSON_ARRAYAGG
                  • JSON_OBJECTAGG
                • Query JSON text functions
                  • JSON_VALUE
                  • JSON_QUERY
                  • JSON_EXISTS
                  • JSON_TABLE
                • Validate JSON text functions
                  • JSON_EQUAL
                • Modify JSON text functions
                  • JSON_MERGEPATCH
              • XML functions
                • Overview
                • Construct XMLType data functions
                  • XMLAGG
                  • XMLATTRIBUTES
                  • XMLELEMENT
                  • XMLPARSE
                • Query XMLType data functions
                  • EXTRACT
                  • EXTRACTVALUE
                  • XMLSERIALIZE
                  • XMLCAST
                • Modify XMLType data functions
                  • UPDATEXML
            • Aggregate functions
              • APPROX_COUNT_DISTINCT
              • AVG
              • CORR
              • COUNT
              • COVAR_POP
              • COVAR_SAMP
              • CUME_DIST
              • DENSE_RANK
              • GROUPING
              • KEEP
              • LISTAGG
              • MAX
              • MEDIAN
              • MIN
              • PERCENT_RANK
              • PERCENTILE_CONT
              • PERCENTILE_DISC
              • RANK
              • REGR_(Linear Regression)
              • ROLLUP
              • STDDEV
              • STDDEV_POP
              • STDDEV_SAMP
              • SUM
              • VAR_POP
              • VAR_SAMP
              • VARIANCE
              • WMSYS.WM_CONCAT/WM_CONCAT
              • GROUP_ID
              • GROUPING_ID
            • Analysis functions
              • Analytic functions
              • AVG
              • CORR
              • COUNT
              • COVAR_POP
              • COVAR_SAMP
              • CUME_DIST
              • DENSE_RANK
              • FIRST_VALUE
              • KEEP
              • LAG
              • LAST_VALUE
              • LEAD
              • LISTAGG
              • MAX
              • MEDIAN
              • MIN
              • NTILE
              • NTH_VALUE
              • PERCENT_RANK
              • PERCENTILE_CONT
              • PERCENTILE_DISC
              • RANK
              • RATIO_TO_REPORT
              • REGR_(Linear Regression)
              • ROW_NUMBER
              • STDDEV
              • STDDEV_POP
              • STDDEV_SAMP
              • SUM
              • VAR_POP
              • VAR_SAMP
              • VARIANCE
              • WMSYS.WM_CONCAT/WM_CONCAT
            • Information functions
              • OB_TRANSACTION_ID
          • Expressions
            • Overview
            • Simple expressions
            • Compound expressions
            • Case expressions
            • Column expressions
            • CURSOR expressions
            • Datetime expressions
            • Function expressions
            • Interval expressions
            • Scalar subquery expressions
            • Type constructor expressions
            • Expression list
          • Conditions
            • Overview
            • Condition precedence
            • Comparison conditions
            • Floating-point conditions
            • Logical conditions
            • Pattern-matching conditions
            • NULL conditions
            • Compound conditions
            • BETWEEN condition
            • EXISTS condition
            • IN condition
          • Queries and subqueries
            • Overview
            • Simple query
            • Hierarchical query
            • Compound query
            • Join query
            • Subquery
            • DUAL table query
          • SQL statements
            • DDL
              • ALTER EXTERNAL TABLE
              • ALTER INDEX
              • ALTER KEYSTORE
              • ALTER OUTLINE
              • ALTER PROFILE
              • ALTER ROLE
              • ALTER SEQUENCE
              • ALTER SESSION
              • ALTER SYSTEM FLUSH PLAN CACHE
              • ALTER SYSTEM PARAMETER
              • ALTER TABLE
              • ALTER TABLEGROUP
              • ALTER USER
              • CREATE CONTEXT
              • CREATE DIRECTORY
              • CREATE DATABASE LINK
              • CREATE EXTERNAL TABLE
              • CREATE INDEX
              • CREATE KEYSTORE
              • CREATE MATERIALIZED VIEW
              • CREATE MATERIALIZED VIEW LOG
              • 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 MATERIALIZED VIEW
              • DROP MATERIALIZED VIEW LOG
              • DROP OUTLINE
              • DROP PROFILE
              • DROP ROLE
              • DROP SEQUENCE
              • DROP SYNONYM
              • DROP TABLE
              • DROP TABLEGROUP
              • DROP TABLESPACE
              • DROP USER
              • DROP VIEW
              • RENAME
              • TRUNCATE TABLE
              • MAJOR and MINOR
            • DML
              • DELETE
              • INSERT
              • MERGE
              • PURGE
              • EXPLAIN
              • SELECT
                • SIMPLE SELECT
                • Set-based SELECT
                • WITH clause
              • UPDATE
            • DCL
              • ANALYZE
              • ALTER SYSTEM KILL SESSION
              • AUDIT
              • COMMENT
              • COMMIT
              • FLASHBACK TABLE BEFORE DROP
              • GRANT
              • KILL
              • LOAD DATA
              • LOCK TABLE
              • REVOKE
              • ROLLBACK
              • SAVEPOINT
              • SET NAMES
              • SET PASSWORD
              • SET ROLE
              • SET VARIABLE
              • SHOW
              • SHRINK
              • TRANSACTION
          • DDL feature
            • Overview
            • Online and offline DDL operations
            • Index operations
            • Primary key operations
            • Column operations
            • Generated column operations
            • Foreign key operations
            • Table operations
            • Partition operations
            • Column type change rules
            • Conversion rules for numeric data types
      • SQL specifications and practices
        • Limitations on writing SQL statements
        • SQL writing specifications
          • SELECT statements
          • DML statements
          • Multi-table join specifications
          • Table scan
          • Transactions
          • Cache
          • Hint
          • Others
        • SQL statement examples
          • Implicit data type conversion
          • Join tables
          • Weak consistency read
          • Pagination queries
      • PL reference
        • What is PL
          • Overview
          • Main features of PL
          • PL architecture
        • PL reference (MySQL mode)
          • Syntax of PL stored programs
          • PL stored procedures
            • Overview
            • Variables in stored programs
            • Stored procedures
            • Stored functions
            • Trigger
            • Limitations on stored programs
          • PL cursors
            • Overview
            • Cursor execution process
            • Limitations on server cursors
          • PL conditional control statements
            • CASE
            • IF
            • ITERATE
            • LEAVE
            • LOOP
            • REPEAT
            • RETURN
            • WHILE
          • PL data manipulation statements
            • CALL
            • DO
          • PL data definition statements
            • ALTER FUNCTION
            • ALTER PROCEDURE
            • CREATE FUNCTION
            • CREATE PROCEDURE
            • CREATE TRIGGER
            • DROP FUNCTION
            • DROP PROCEDURE
            • DROP TRIGGER
          • PL database management statements
            • SHOW CREATE FUNCTION
            • SHOW CREATE PROCEDURE
            • SHOW CREATE TRIGGER
            • SHOW FUNCTION STATUS
            • SHOW PROCEDURE STATUS
            • SHOW TRIGGERS
          • PL related dictionary views
            • INFORMATION_SCHEMA PARAMETERS
            • INFORMATION_SCHEMA ROUTINES
            • INFORMATION_SCHEMA TRIGGERS
          • PL exception handling
            • Overview
            • DECLARE ... CONDITION
            • DECLARE ... HANDLER
            • GET DIAGNOSTICS
            • RESIGNAL
            • SIGNAL
            • Effective scope of an exception handler
            • Diagnostics area
            • Exception handling and OUT/INOUT parameters
            • Limitations on exception handling
          • PL system packages
            • Overview
            • DBMS_MVIEW
              • Overview
              • PURGE_LOG
              • REFRESH
            • DBMS_MVIEW_STAT
              • Overview
              • PURGE_REFRESH_STATS
              • SET_MVREF_STATS_PARAMS
              • SET_SYSTEM_DEFAULT
            • DBMS_RESOURCE_MANAGER
              • Overview
              • CREATE_CONSUMER_GROUP
              • CREATE_PLAN
              • CREATE_PLAN_DIRECTIVE
              • DELETE_CONSUMER_GROUP
              • DELETE_PLAN
              • DELETE_PLAN_DIRECTIVE
              • SET_CONSUMER_GROUP_MAPPING
              • UPDATE_PLAN_DIRECTIVE
            • DBMS_STATS
              • Overview
              • ALTER_STATS_HISTORY_RETENTION
              • CREATE_STAT_TABLE
              • DELETE_COLUMN_STATS
              • DELETE_INDEX_STATS
              • DELETE_TABLE_STATS
              • DELETE_SCHEMA_STATS
              • DELETE_SCHEMA_PREFS
              • DELETE_SYSTEM_STATS
              • DELETE_TABLE_PREFS
              • DROP_STAT_TABLE
              • EXPORT_COLUMN_STATS
              • EXPORT_INDEX_STATS
              • EXPORT_TABLE_STATS
              • EXPORT_SCHEMA_STATS
              • FLUSH_DATABASE_MONITORING_INFO
              • GATHER_INDEX_STATS
              • GATHER_TABLE_STATS
              • GATHER_SCHEMA_STATS
              • GATHER_SYSTEM_STATS
              • GET_STATS_HISTORY_AVAILABILITY
              • GET_STATS_HISTORY_RETENTION
              • GET_PARAM
              • GET_PREFS
              • IMPORT_INDEX_STATS
              • IMPORT_COLUMN_STATS
              • IMPORT_TABLE_STATS
              • IMPORT_SCHEMA_STATS
              • LOCK_PARTITION_STATS
              • LOCK_SCHEMA_STATS
              • LOCK_TABLE_STATS
              • RESTORE_TABLE_STATS
              • RESTORE_SCHEMA_STATS
              • RESET_GLOBAL_PREF_DEFAULTS
              • RESET_PARAM_DEFAULTS
              • PURGE_STATS
              • SET_COLUMN_STATS
              • SET_INDEX_STATS
              • SET_TABLE_STATS
              • SET_GLOBAL_PREFS
              • SET_PARAM
              • SET_SCHEMA_PREFS
              • SET_SYSTEM_STATS
              • SET_TABLE_PREFS
              • UNLOCK_PARTITION_STATS
              • UNLOCK_SCHEMA_STATS
              • UNLOCK_TABLE_STATS
            • DBMS_TRUSTED_CERTIFICATE_MANAGER
              • Overview
              • ADD_TRUSTED_CERTIFICATE
              • DELETE_TRUSTED_CERTIFICATE
              • UPDATE_TRUSTED_CERTIFICATE
            • DBMS_UDR
              • Overview
              • CREATE_RULE
              • DISABLE_RULE
              • ENABLE_RULE
              • REMOVE_RULE
            • DBMS_WORKLOAD_REPOSITORY
              • Overview
              • ASH_REPORT
              • CREATE_SNAPSHOT
              • DROP_SNAPSHOT_RANGE
              • MODIFY_SNAPSHOT_SETTINGS
            • DBMS_XPLAN
              • Overview
              • DISPLAY_ACTIVE_SESSION_PLAN
              • DISPLAY_CURSOR
              • DISPLAY
              • DISABLE_OPT_TRACE
              • DISPLAY_SQL_PLAN_BASELINE
              • ENABLE_OPT_TRACE
              • SET_OPT_TRACE_PARAMETER
          • Reserved and non-reserved PL keywords
        • PL reference (Oracle mode)
          • PL language basics
            • Character sets
            • Lexical units
            • Declare
            • Reference identifiers
            • Scope and visibility of identifiers
            • Assign values
            • Expressions
            • PL blocks
            • Subprograms
            • Error-reporting functions
          • PL data types
            • Overview
            • SQL data types
            • LOB data types
            • BOOLEAN type
            • User-defined subtypes
            • PLS_INTEGER and BINARY_INTEGER
            • Arrays
            • PL JSON data types
          • PL process control
            • Overview
            • Conditional control
            • Loop control
            • Sequential control
          • PL collections and records
            • Overview
            • Collections
            • Associative arrays
            • Varrays
            • Nested tables
            • Collection constructor function
            • Collection methods
              • Overview
              • DELETE method
              • TRIM method
              • EXTEND method
              • EXISTS method
              • FIRST and LAST methods
              • COUNT 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 static SQL
            • Overview
            • Cursors
              • Overview
              • Cursor attributes
              • Implicit cursors
              • Explicit cursors
              • Cursor variables
              • Traverse cursor data by using the FOR loop
              • Modify and drop a cursor
            • Transaction processing and control
            • Autonomous transactions
              • Overview
              • Control autonomous transactions
              • Autonomous triggers
              • Call autonomous functions from SQL statements
          • PL dynamic SQL
            • Overview
            • Execute dynamic SQL statements
            • DBMS_SQL system package
          • PL stored procedures and functions
            • Overview
            • Create a stored procedure
            • Create a function
            • Manage stored procedures and functions
            • Privilege control
            • Pipeline functions
              • Overview
              • Create a pipelined table function
              • Application
            • User-defined functions
              • Overview
              • Interface for user-defined aggregate functions
              • Create user-defined aggregate functions
              • Use user-defined aggregate functions
            • Collection of stored procedure information and its impact on parallel execution of SQL statements
            • PL DBLinks
          • PL triggers
            • Overview
            • Create a DML trigger
            • Modify and drop a trigger
            • Disable or enable a trigger
            • Query trigger information
            • INSTEAD OF DML trigger
            • Compound DML trigger
          • PL packages
            • Overview
            • Create a program package
            • Overloaded programs in a package
            • Manage program packages
            • Definition of the PL environment by the STANDARD package
          • PL exception handling
            • Overview
            • Compile-Time alerts
            • Exception types
            • Exception handling processes
          • DDL operations on stored PL units
            • Overview
            • ALTER FUNCTION
            • ALTER PACKAGE
            • ALTER PROCEDURE
            • ALTER TRIGGER
            • ALTER TYPE
            • CREATE FUNCTION
            • CREATE PACKAGE
            • CREATE PACKAGE BODY
            • CREATE PROCEDURE
            • CREATE TRIGGER
            • CREATE TYPE
            • CREATE TYPE BODY
            • DROP FUNCTION
            • DROP PACKAGE
            • DROP PROCEDURE
            • DROP TRIGGER
            • DROP TYPE
            • DROP TYPE BODY
          • PL label security package
            • Overview
            • SA_SYSDBA policy management package
              • Overview
              • SA_SYSDBA.ALTER_POLICY
              • SA_SYSDBA.CREATE_POLICY
              • SA_SYSDBA.DROP_POLICY
            • SA_COMPONENTS label component package
              • Overview
              • SA_COMPONENTS.ALTER_LEVEL
              • SA_COMPONENTS.CREATE_LEVEL
              • SA_COMPONENTS.DROP_LEVEL
            • SA_LABEL_ADMIN label management package
              • Overview
              • SA_LABEL_ADMIN.ALTER_LABEL
              • SA_LABEL_ADMIN.CREATE_LABEL
              • SA_LABEL_ADMIN.DROP_LABEL
            • SA_POLICY_ADMIN policy management package
              • Overview
              • SA_POLICY_ADMIN.APPLY_TABLE_POLICY
              • SA_POLICY_ADMIN.DISABLE_TABLE_POLICY
              • SA_POLICY_ADMIN.ENABLE_TABLE_POLICY
              • SA_POLICY_ADMIN.REMOVE_TABLE_POLICY
            • SA_USER_ADMIN user label management package
              • Overview
              • SA_USER_ADMIN.SET_LEVELS
            • SA_SESSION session management package
              • Overview
              • SA_SESSION.LABEL
              • SA_SESSION.RESTORE_DEFAULT_LABELS
              • SA_SESSION.ROW_LABEL
              • SA_SESSION.SET_LABEL
              • SA_SESSION.SET_ROW_LABEL
          • PL system package (Oracle mode)
            • Overview
            • DBMS_APPLICATION_INFO
              • Overview
              • READ_CLIENT_INFO
              • READ_MODULE
              • SET_ACTION
              • SET_CLIENT_INFO
              • SET_MODULE
            • DBMS_AUDIT_MGMT
              • Overview
              • CLEAN_AUDIT_TRAIL
              • CREATE_PURGE_JOB
              • DROP_PURGE_JOB
              • SET_LAST_ARCHIVE_TIMESTAMP
              • SET_PURGE_JOB_STATUS
            • DBMS_CRYPTO
              • Overview
              • ENCRYPT
              • DECRYPT
              • HASH
            • DBMS_DEBUG
              • Overview
              • ATTACH_SESSION
              • CONTINUE
              • DEBUG_ON
              • DEBUG_OFF
              • DETACH_SESSION
              • DELETE_BREAKPOINT
              • DISABLE_BREAKPOINT
              • ENABLE_BREAKPOINT
              • GET_VALUE
              • GET_VALUES
              • GET_RUNTIME_INFO
              • GET_TIMEOUT_BEHAVIOUR
              • INITIALIZE
              • PROBE_VERSION
              • PRINT_BACKTRACE
              • SET_TIMEOUT
              • SET_TIMEOUT_BEHAVIOUR
              • SET_BREAKPOINT
              • SHOW_BREAKPOINTS
            • DBMS_DESCRIBE
              • Overview
              • DESCRIBE_PROCEDURE
            • DBMS_JOB
              • Overview
              • BROKEN
              • CHANGE
              • ZONE
              • INTERVAL
              • NEXT_DATE
              • REMOVE
              • RUN
              • SUBMIT
              • USER_EXPORT
              • WHAT
            • DBMS_LOB
              • Overview
              • APPEND
              • CLOSE
              • COPY
              • CREATETEMPORARY
              • ERASE
              • FREETEMPORARY
              • GETLENGTH
              • ISOPEN
              • INSTR
              • ISTEMPORARY
              • OPEN
              • READ
              • SUBSTR
              • TRIM
              • WRITE
              • WRITEAPPEND
            • DBMS_LOCK
              • Overview
              • ALLOCATE_UNIQUE
              • ALLOCATE_UNIQUE_AUTONOMOUS
              • REQUEST
              • SLEEP
            • DBMS_METADATA
              • Overview
              • GET_DDL
            • DBMS_MVIEW
              • Overview
              • PURGE_LOG
              • REFRESH
            • DBMS_MONITOR
              • Overview
              • OB_SESSION_TRACE_ENABLE
              • OB_SESSION_TRACE_DISABLE
              • OB_CLIENT_ID_TRACE_ENABLE
              • OB_CLIENT_ID_TRACE_DISABLE
              • OB_MOD_ACT_TRACE_ENABLE
              • OB_MOD_ACT_TRACE_DISABLE
              • OB_TENANT_TRACE_ENABLE
              • OB_TENANT_TRACE_DISABLE
            • DBMS_MVIEW_STAT
              • Overview
              • PURGE_REFRESH_STATS
              • SET_MVREF_STATS_PARAMS
              • SET_SYSTEM_DEFAULT
            • DBMS_OUTPUT
              • Overview
              • DISABLE
              • ENABLE
              • GET_LINE
              • GET_LINES
              • NEW_LINE
              • PUT
              • PUT_LINE
            • DBMS_PLAN_CACHE
              • Overview
              • PURGE
            • DBMS_RANDOM
              • Overview
              • INITIALIZE
              • NORMAL
              • RANDOM
              • SEED
              • STRING
              • TERMINATE
              • VALUE
            • DBMS_RESOURCE_MANAGER
              • Overview
              • CREATE_CONSUMER_GROUP
              • CREATE_PLAN
              • CREATE_PLAN_DIRECTIVE
              • DELETE_CONSUMER_GROUP
              • DELETE_PLAN
              • DELETE_PLAN_DIRECTIVE
              • SET_CONSUMER_GROUP_MAPPING
              • UPDATE_PLAN_DIRECTIVE
            • DBMS_SCHEDULER
              • Overview
              • CREATE_JOB
              • CREATE_PROGRAM
              • DEFINE_PROGRAM_ARGUMENT
              • DISABLE
              • DROP_JOB
              • DROP_PROGRAM
              • ENABLE
              • GENERATE_JOB_NAME
              • RUN_JOB
              • SET_ATTRIBUTE
              • SET_JOB_ARGUMENT_VALUE
            • DBMS_SESSION
              • Overview
              • CLEAR_ALL_CONTEXT
              • CLEAR_CONTEXT
              • CLEAR_IDENTIFIER
              • RESET_PACKAGE
              • SET_CONTEXT
              • SET_IDENTIFIER
            • DBMS_SQL
              • Overview
              • BIND_VARIABLE
              • CLOSE_CURSOR
              • COLUMN_VALUE
              • DEFINE_COLUMN
              • DEFINE_ARRAY
              • DESCRIBE_COLUMNS
              • EXECUTE
              • EXECUTE_AND_FETCH
              • FETCH_ROWS
              • IS_OPEN
              • LAST_ERROR_POSITION
              • OPEN_CURSOR
              • PARSE
              • VARIABLE_VALUE
            • DBMS_STATS
              • Overview
              • ALTER_STATS_HISTORY_RETENTION
              • CREATE_STAT_TABLE
              • DELETE_COLUMN_STATS
              • DELETE_INDEX_STATS
              • DELETE_TABLE_STATS
              • DELETE_SCHEMA_STATS
              • DELETE_SCHEMA_PREFS
              • DELETE_SYSTEM_STATS
              • DELETE_TABLE_PREFS
              • DROP_STAT_TABLE
              • EXPORT_COLUMN_STATS
              • EXPORT_INDEX_STATS
              • EXPORT_TABLE_STATS
              • EXPORT_SCHEMA_STATS
              • FLUSH_DATABASE_MONITORING_INFO
              • GATHER_INDEX_STATS
              • GATHER_TABLE_STATS
              • GATHER_SCHEMA_STATS
              • GATHER_SYSTEM_STATS
              • GET_STATS_HISTORY_AVAILABILITY
              • GET_STATS_HISTORY_RETENTION
              • GET_PARAM
              • GET_PREFS
              • IMPORT_INDEX_STATS
              • IMPORT_COLUMN_STATS
              • IMPORT_TABLE_STATS
              • IMPORT_SCHEMA_STATS
              • LOCK_PARTITION_STATS
              • LOCK_SCHEMA_STATS
              • LOCK_TABLE_STATS
              • RESTORE_TABLE_STATS
              • RESTORE_SCHEMA_STATS
              • RESET_GLOBAL_PREF_DEFAULTS
              • RESET_PARAM_DEFAULTS
              • PURGE_STATS
              • SET_COLUMN_STATS
              • SET_INDEX_STATS
              • SET_TABLE_STATS
              • SET_GLOBAL_PREFS
              • SET_PARAM
              • SET_SCHEMA_PREFS
              • SET_SYSTEM_STATS
              • SET_TABLE_PREFS
              • UNLOCK_PARTITION_STATS
              • UNLOCK_SCHEMA_STATS
              • UNLOCK_TABLE_STATS
              • COPY_TABLE_STATS
            • DBMS_UDR
              • Overview
              • CREATE_RULE
              • DISABLE_RULE
              • ENABLE_RULE
              • REMOVE_RULE
            • DBMS_UTILITY
              • Overview
              • ACTIVE_INSTANCES
              • CURRENT_INSTANCE
              • DB_VERSION
              • FORMAT_CALL_STACK
              • FORMAT_ERROR_BACKTRACE
              • FORMAT_ERROR_STACK
              • GET_ENDIANNESS
              • GET_HASH_VALUE
              • GET_PARAMETER_VALUE
              • GET_SQL_HASH
              • GET_TIME
              • IS_BIT_SET
              • IS_CLUSTER_DATABASE
              • NAME_RESOLVE
              • NAME_TOKENIZE
              • OLD_CURRENT_SCHEMA
              • OLD_CURRENT_USER
              • PORT_STRING
              • TABLE_TO_COMMA
            • DBMS_WORKLOAD_REPOSITORY
              • Overview
              • ASH_REPORT
            • DBMS_XA
              • Overview
              • DBMS_XA constants
              • DBMS_XA_XID object type
              • DIST_TXN_SYNC
              • XA_COMMIT
              • XA_END
              • XA_FORGET
              • XA_GETLASTOER
              • XA_PREPARE
              • XA_RECOVER
              • XA_ROLLBACK
              • XA_SETTIMEOUT
              • XA_START
            • DBMS_XMLGEN
              • Overview
              • CONVERT
            • DBMS_XPLAN
              • Overview
              • DISPLAY_ACTIVE_SESSION_PLAN
              • DISPLAY_CURSOR
              • DISPLAY
              • DISABLE_OPT_TRACE
              • DISPLAY_SQL_PLAN_BASELINE
              • ENABLE_OPT_TRACE
              • SET_OPT_TRACE_PARAMETER
            • ODCIConst
              • Overview
              • ODCIArgDesc.ArgType
              • ODCIEnv.CallProperty
              • ODCIEnv.Envflags
              • ODCIIndexAlter
              • ODCIIndexAlter parameter alter_option
              • ODCIIndexInfo.IndexInfoFlags
              • ODCIIndexInfo.IndexParaDegree
              • ODCIPredInfo.Flags
              • ODCIQueryInfo.Flags
              • ODCIStatsOptions.Flags
              • ODCIStatsOptions.Options
              • Return Status
              • ScnFlg
            • UTL_ENCODE
              • Overview
              • BASE64_DECODE
              • BASE64_ENCODE
            • UTL_FILE
              • Overview
              • FCLOSE
              • FFLUSH
              • FOPEN
              • FGETPOS
              • FREMOVE
              • FRENAME
              • FSEEK
              • NEW_LINE
              • GET_LINE
              • PUT
              • PUT_LINE
            • UTL_I18N
              • Overview
              • RAW_TO_CHAR
              • STRING_TO_RAW
            • UTL_RAW
              • Overview
              • BIT_AND
              • BIT_COMPLEMENT
              • BIT_OR
              • BIT_XOR
              • CAST_FROM_BINARY_DOUBLE
              • CAST_FROM_BINARY_FLOAT
              • CAST_FROM_BINARY_INTEGER
              • CAST_FROM_NUMBER
              • CAST_TO_BINARY_DOUBLE
              • CAST_TO_BINARY_FLOAT
              • CAST_TO_BINARY_INTEGER
              • CAST_TO_NUMBER
              • CAST_TO_RAW
              • CAST_TO_VARCHAR2
              • COMPARE
              • CONCAT
              • COPIES
              • LENGTH
              • REVERSE
              • SUBSTR
            • ANYDATA TYPE
              • Overview
              • BEGINCREATE static procedure
              • ENDCREATE member procedure
              • GET* member functions
              • GETTYPE member function
              • GETTYPENAME member function
              • PIECEWISE member procedure
              • SET* member procedures
            • XMLType
              • Overview
              • CREATEXML
              • GETCLOBVAL
              • GETSTRINGVAL
              • TRANSFORM
              • XMLTYPE
          • Reserved PL keywords
      • Reserved keywords (MySQL mode)
      • Reserved keywords (Oracle mode)
    • Multi-model API
      • RPC message compression
    • System views
      • Overview
      • Overview of system views
      • Changes in views in OceanBase Database V3.x and V4.x
      • SYS tenant views
        • Dictionary views
          • information_schema.CHARACTER_SETS
          • information_schema.CHECK_CONSTRAINTS
          • information_schema.COLLATIONS
          • information_schema.COLLATION_CHARACTER_SET_APPLICABILITY
          • information_schema.COLUMNS
          • information_schema.COLUMN_PRIVILEGES
          • information_schema.CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS
          • information_schema.ENGINES
          • information_schema.GLOBAL_STATUS
          • information_schema.GLOBAL_VARIABLES
          • information_schema.KEY_COLUMN_USAGE
          • information_schema.PARAMETERS
          • information_schema.PARTITIONS
          • information_schema.PROCESSLIST
          • information_schema.REFERENTIAL_CONSTRAINTS
          • information_schema.ROUTINES
          • information_schema.SCHEMA_PRIVILEGES
          • information_schema.SCHEMATA
          • information_schema.SESSION_STATUS
          • information_schema.SESSION_VARIABLES
          • information_schema.STATISTICS
          • information_schema.TABLES
          • information_schema.TABLE_CONSTRAINTS
          • information_schema.TABLE_PRIVILEGES
          • information_schema.USER_PRIVILEGES
          • information_schema.VIEW_TABLE_USAGE
          • information_schema.VIEWS
          • mysql.db
          • mysql.help_category
          • mysql.help_keyword
          • mysql.help_relation
          • mysql.help_topic
          • mysql.proc
          • mysql.time_zone
          • mysql.time_zone_name
          • mysql.time_zone_transition
          • mysql.time_zone_transition_type
          • mysql.user
          • 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
          • oceanbase.CDB_OB_TRANSFER_PARTITION_TASKS
          • oceanbase.CDB_OB_TRANSFER_PARTITION_TASK_HISTORY
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASKS
          • oceanbase.DBA_OB_TRANSFER_PARTITION_TASK_HISTORY
          • DBA_OB_CLONE_PROGRESS
          • DBA_OB_CLONE_HISTORY
          • oceanbase.CDB_WR_SYSTEM_EVENT
          • oceanbase.DBA_WR_SYSTEM_EVENT
          • oceanbase.CDB_WR_EVENT_NAME
          • oceanbase.DBA_WR_EVENT_NAME
          • oceanbase.CDB_WR_SQLSTAT
          • oceanbase.DBA_WR_SQLSTAT
          • oceanbase.CDB_WR_SYS_TIME_MODEL
          • oceanbase.DBA_WR_SYS_TIME_MODEL
          • oceanbase.CDB_WR_SQLTEXT
          • oceanbase.DBA_WR_SQLTEXT
          • CDB_MVIEW_LOGS
          • CDB_MVIEWS
          • CDB_MVREF_STATS_SYS_DEFAULTS
          • CDB_MVREF_STATS_PARAMS
          • CDB_MVREF_RUN_STATS
          • CDB_MVREF_STATS
          • CDB_MVREF_CHANGE_STATS
          • CDB_MVREF_STMT_STATS
          • DBA_MVIEW_LOGS
          • DBA_MVIEWS
          • DBA_MVREF_STATS_SYS_DEFAULTS
          • DBA_MVREF_STATS_PARAMS
          • DBA_MVREF_RUN_STATS
          • DBA_MVREF_STATS
          • DBA_MVREF_CHANGE_STATS
          • DBA_MVREF_STMT_STATS
          • CDB_INDEX_USAGE
          • DBA_INDEX_USAGE
          • CDB_OB_AUX_STATISTICS
          • DBA_OB_AUX_STATISTICS
          • DBA_OB_TRUSTED_ROOT_CERTIFICATE
        • Performance views
          • GV$OB_COMPACTION_DIAGNOSE_INFO
          • GV$OB_COMPACTION_PROGRESS
          • GV$OB_COMPACTION_SUGGESTIONS
          • GV$OB_KVCACHE
          • GV$OB_PARAMETERS
          • GV$OB_PROCESSLIST
          • GV$OB_PX_TARGET_MONITOR
          • GV$OB_SERVERS
          • GV$OB_TABLET_COMPACTION_HISTORY
          • GV$OB_TABLET_COMPACTION_PROGRESS
          • GV$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_UNITS
          • GV$OB_PLAN_CACHE_STAT
          • GV$OB_PLAN_CACHE_PLAN_STAT
          • GV$SESSION_EVENT
          • GV$SESSION_WAIT
          • GV$SESSION_WAIT_HISTORY
          • GV$SYSTEM_EVENT
          • GV$SESSTAT
          • GV$OB_IO_BENCHMARK
          • GV$OB_SQL_AUDIT
          • GV$LATCH
          • GV$OB_MEMORY
          • GV$OB_MEMSTORE
          • GV$OB_PLAN_CACHE_PLAN_EXPLAIN
          • GV$OB_RPC_OUTGOING
          • GV$OB_RPC_INCOMING
          • GV$SQL_PLAN_MONITOR
          • GV$SYSSTAT
          • GV$ACTIVE_SESSION_HISTORY
          • GV$DML_STATS
          • GV$SESSION_LONGOPS
          • GV$OB_PX_WORKER_STAT
          • GV$OB_PS_STAT
          • GV$OB_PS_ITEM_INFO
          • GV$SQL_WORKAREA
          • GV$SQL_WORKAREA_HISTOGRAM
          • GV$OB_SQL_WORKAREA_MEMORY_INFO
          • GV$OB_SERVER_SCHEMA_INFO
          • GV$OB_MERGE_INFO
          • GV$OB_SSTABLES
          • GV$OB_TENANT_MEMORY
          • V$OB_COMPACTION_DIAGNOSE_INFO
          • V$OB_COMPACTION_PROGRESS
          • V$OB_COMPACTION_SUGGESTIONS
          • V$OB_KVCACHE
          • V$OB_PARAMETERS
          • V$OB_PROCESSLIST
          • V$OB_PX_TARGET_MONITOR
          • V$OB_SERVERS
          • V$OB_TABLET_COMPACTION_HISTORY
          • V$OB_TABLET_COMPACTION_PROGRESS
          • V$OB_TRANSACTION_PARTICIPANTS
          • V$OB_UNITS
          • V$STATNAME
          • V$EVENT_NAME
          • V$SESSION_WAIT
          • V$SESSION_WAIT_HISTORY
          • V$SESSTAT
          • V$SYSTEM_EVENT
          • V$OB_MEMORY
          • V$OB_MEMSTORE
          • V$OB_PLAN_CACHE_STAT
          • V$OB_PLAN_CACHE_PLAN_STAT
          • V$OB_PLAN_CACHE_PLAN_EXPLAIN
          • V$OB_SQL_AUDIT
          • V$OB_RPC_OUTGOING
          • V$OB_RPC_INCOMING
          • V$SQL_PLAN_MONITOR
          • V$SESSION_LONGOPS
          • V$LATCH
          • V$OB_PX_WORKER_STAT
          • V$OB_PS_STAT
          • V$OB_PS_ITEM_INFO
          • V$SQL_WORKAREA
          • V$SQL_WORKAREA_ACTIVE
          • V$SQL_WORKAREA_HISTOGRAM
          • V$OB_SQL_WORKAREA_MEMORY_INFO
          • V$OB_SERVER_SCHEMA_INFO
          • V$OB_MERGE_INFO
          • V$SQL_MONITOR_STATNAME
          • V$OB_ENCRYPTED_TABLES
          • V$ENCRYPTED_TABLESPACES
          • V$OB_SSTABLES
          • V$OB_TENANT_MEMORY
          • GV$SQL_WORKAREA_ACTIVE
          • GV$OB_MEMSTORE_INFO
          • V$OB_MEMSTORE_INFO
          • GV$OB_IO_CALIBRATION_STATUS
          • V$OB_IO_CALIBRATION_STATUS
          • GV$OB_DTL_INTERM_RESULT_MONITOR
          • V$OB_IO_BENCHMARK
          • V$SYSSTAT
          • V$SESSION_EVENT
          • V$ACTIVE_SESSION_HISTORY
          • V$DML_STATS
          • GV$OB_LOG_STAT
          • V$OB_LOG_STAT
          • V$OB_DTL_INTERM_RESULT_MONITOR
          • V$OB_LS_REPLICA_TASK_PLAN
          • V$OB_ARCHIVE_DEST_STATUS
          • V$RSRC_PLAN
          • GV$OB_THREAD
          • V$OB_THREAD
          • GV$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_ARBITRATION_SERVICE_STATUS
          • GV$OB_ARBITRATION_MEMBER_INFO
          • V$OB_ARBITRATION_MEMBER_INFO
          • GV$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_OPT_STAT_GATHER_MONITOR
          • GV$OB_LOCKS
          • V$OB_LOCKS
          • V$OB_LS_LOG_RESTORE_STATUS
          • V$OB_TIMESTAMP_SERVICE
          • GV$OB_PX_P2P_DATAHUB
          • V$OB_PX_P2P_DATAHUB
          • GV$SQL_JOIN_FILTER
          • V$SQL_JOIN_FILTER
          • GV$OB_SQL_PLAN
          • V$OB_SQL_PLAN
          • GV$OB_TENANT_RUNTIME_INFO
          • V$OB_TENANT_RUNTIME_INFO
          • GV$OB_FLT_TRACE_CONFIG
          • GV$OB_LS_SNAPSHOTS
          • V$OB_LS_SNAPSHOTS
          • GV$OB_SQLSTAT
          • V$OB_SQLSTAT
          • GV$OB_SESS_TIME_MODEL
          • V$OB_SESS_TIME_MODEL
          • GV$OB_SYS_TIME_MODEL
          • V$OB_SYS_TIME_MODEL
          • GV$OB_ACTIVE_SESSION_HISTORY
          • V$OB_ACTIVE_SESSION_HISTORY
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          • DBA_SCHEDULER_JOB_RUN_DETAILS
          • DBA_WR_SNAPSHOT
          • DBA_WR_ACTIVE_SESSION_HISTORY
          • DBA_WR_STATNAME
          • DBA_WR_SYSSTAT
          • DBA_WR_CONTROL
          • DBA_OB_RECOVER_TABLE_JOBS
          • DBA_OB_IMPORT_TABLE_JOBS
          • DBA_OB_IMPORT_TABLE_TASKS
          • DBA_OB_RECOVER_TABLE_JOB_HISTORY
          • DBA_OB_IMPORT_TABLE_JOB_HISTORY
          • DBA_OB_IMPORT_TABLE_TASK_HISTORY
          • DBMS_LOCK_ALLOCATED
          • USER_USERS
          • DBA_OB_TRANSFER_PARTITION_TASKS
          • DBA_OB_TRANSFER_PARTITION_TASK_HISTORY
          • DBA_WR_SYSTEM_EVENT
          • DBA_WR_EVENT_NAME
          • DBA_WR_SQLSTAT
          • DBA_WR_SYS_TIME_MODEL
          • DBA_WR_SQLTEXT
          • ALL_MVIEW_LOGS
          • DBA_MVIEW_LOGS
          • USER_MVIEW_LOGS
          • DBA_MVIEWS
          • ALL_MVIEWS
          • USER_MVIEWS
          • DBA_MVREF_STATS_SYS_DEFAULTS
          • USER_MVREF_STATS_SYS_DEFAULTS
          • DBA_MVREF_STATS_PARAMS
          • USER_MVREF_STATS_PARAMS
          • DBA_MVREF_RUN_STATS
          • USER_MVREF_RUN_STATS
          • DBA_MVREF_STATS
          • USER_MVREF_STATS
          • DBA_MVREF_CHANGE_STATS
          • USER_MVREF_CHANGE_STATS
          • DBA_MVREF_STMT_STATS
          • USER_MVREF_STMT_STATS
          • DBA_INDEX_USAGE
          • DBA_OB_AUX_STATISTICS
        • Performance views
          • GV$OB_COMPACTION_DIAGNOSE_INFO
          • GV$OB_COMPACTION_PROGRESS
          • GV$OB_COMPACTION_SUGGESTIONS
          • GV$OB_KVCACHE
          • GV$OB_PARAMETERS
          • GV$OB_PROCESSLIST
          • GV$OB_PX_TARGET_MONITOR
          • GV$OB_TABLET_COMPACTION_HISTORY
          • GV$OB_TABLET_COMPACTION_PROGRESS
          • GV$OB_TRANSACTION_PARTICIPANTS
          • GV$OB_UNITS
          • GV$DBLINK
          • GV$INSTANCE
          • GV$OB_MEMORY
          • GV$OB_PX_WORKER_STAT
          • GV$OB_MEMSTORE
          • GV$OB_SERVER_SCHEMA_INFO
          • GV$OB_SQL_WORKAREA_MEMORY_INFO
          • GV$OB_PLAN_CACHE_PLAN_EXPLAIN
          • GV$OB_PLAN_CACHE_PLAN_STAT
          • GV$OB_PLAN_CACHE_STAT
          • GV$OB_PS_ITEM_INFO
          • GV$OB_PS_STAT
          • GV$SESSION_WAIT
          • GV$SESSION_WAIT_HISTORY
          • GV$SESSTAT
          • GV$OB_SQL_AUDIT
          • GV$SQL_WORKAREA
          • GV$SQL_WORKAREA_ACTIVE
          • GV$SQL_WORKAREA_HISTOGRAM
          • GV$SYSTEM_EVENT
          • GV$GLOBAL_TRANSACTION
          • GV$OB_SSTABLES
          • GV$OB_TENANT_MEMORY
          • V$GLOBALCONTEXT
          • V$OB_COMPACTION_DIAGNOSE_INFO
          • V$OB_COMPACTION_PROGRESS
          • V$OB_COMPACTION_SUGGESTIONS
          • V$OB_KVCACHE
          • V$OB_PARAMETERS
          • V$OB_PROCESSLIST
          • V$OB_PX_TARGET_MONITOR
          • V$OB_TABLET_COMPACTION_HISTORY
          • V$OB_TABLET_COMPACTION_PROGRESS
          • V$OB_TRANSACTION_PARTICIPANTS
          • V$OB_UNITS
          • V$DBLINK
          • V$INSTANCE
          • V$OB_MEMORY
          • V$OB_MEMSTORE
          • V$NLS_PARAMETERS
          • V$OB_SERVER_SCHEMA_INFO
          • V$OB_SQL_WORKAREA_MEMORY_INFO
          • V$OB_PLAN_CACHE_PLAN_EXPLAIN
          • V$OB_PLAN_CACHE_PLAN_STAT
          • V$OB_PLAN_CACHE_STAT
          • V$OB_PX_WORKER_STAT
          • V$OB_PS_ITEM_INFO
          • V$OB_PS_STAT
          • V$SESSION_WAIT
          • V$SESSION_WAIT_HISTORY
          • V$SESSTAT
          • V$OB_SQL_AUDIT
          • V$SQL_WORKAREA
          • V$SQL_WORKAREA_ACTIVE
          • V$SQL_WORKAREA_HISTOGRAM
          • V$SYSTEM_EVENT
          • V$VERSION
          • V$SQL_MONITOR_STATNAME
          • V$GLOBAL_TRANSACTION
          • V$TIMEZONE_NAMES
          • V$OB_ENCRYPTED_TABLES
          • V$ENCRYPTED_TABLESPACES
          • V$RSRC_PLAN
          • V$OB_SSTABLES
          • V$OB_TENANT_MEMORY
          • GV$OB_MEMSTORE_INFO
          • V$OB_MEMSTORE_INFO
          • GV$SYSSTAT
          • V$SYSSTAT
          • V$EVENT_NAME
          • GV$ACTIVE_SESSION_HISTORY
          • V$ACTIVE_SESSION_HISTORY
          • GV$DML_STATS
          • V$DML_STATS
          • GV$OB_LOG_STAT
          • V$OB_LOG_STAT
          • GV$SQL_PLAN_MONITOR
          • V$SQL_PLAN_MONITOR
          • GV$OB_DTL_INTERM_RESULT_MONITOR
          • V$OB_DTL_INTERM_RESULT_MONITOR
          • GV$OB_GLOBAL_TRANSACTION
          • V$OB_GLOBAL_TRANSACTION
          • V$OB_LS_REPLICA_TASK_PLAN
          • GV$OPEN_CURSOR
          • V$OPEN_CURSOR
          • V$OB_ARCHIVE_DEST_STATUS
          • GV$OB_THREAD
          • V$OB_THREAD
          • GV$OB_ARBITRATION_SERVICE_STATUS
          • V$OB_ARBITRATION_SERVICE_STATUS
          • GV$OB_ARBITRATION_MEMBER_INFO
          • V$OB_ARBITRATION_MEMBER_INFO
          • GV$OB_OPT_STAT_GATHER_MONITOR
          • V$OB_OPT_STAT_GATHER_MONITOR
          • GV$OB_LOCKS
          • V$OB_LOCKS
          • V$OB_LS_LOG_RESTORE_STATUS
          • V$OB_TIMESTAMP_SERVICE
          • GV$OB_PX_P2P_DATAHUB
          • V$OB_PX_P2P_DATAHUB
          • GV$SQL_JOIN_FILTER
          • V$SQL_JOIN_FILTER
          • GV$OB_SQL_PLAN
          • V$OB_SQL_PLAN
          • GV$OB_FLT_TRACE_CONFIG
          • GV$OB_LS_SNAPSHOTS
          • V$OB_LS_SNAPSHOTS
          • GV$OB_SQLSTAT
          • V$OB_SQLSTAT
          • GV$OB_SESS_TIME_MODEL
          • V$OB_SESS_TIME_MODEL
          • GV$OB_SYS_TIME_MODEL
          • V$OB_SYS_TIME_MODEL
          • GV$OB_ACTIVE_SESSION_HISTORY
          • V$STATNAME
          • V$OB_ACTIVE_SESSION_HISTORY
          • GV$OB_SESSION
          • V$OB_SESSION
      • Common statistical events
      • General wait events
    • Parameters and system variables
      • Overview
      • Parameters
        • Overview
        • Cluster-level parameters
          • all_cluster_list
          • auto_broadcast_location_cache_rate_limit
          • all_server_list
          • auto_leader_switch_interval
          • auto_refresh_location_cache_rate_limit
          • autoinc_cache_refresh_interval
          • backup_backup_dest
          • backup_backup_dest_option
          • backup_dest_option
          • backup_concurrency
          • backup_dest
          • backup_log_archive_option
          • backup_net_limit
          • backup_recovery_window
          • backup_region
          • backup_zone
          • balance_blacklist_failure_threshold
          • balance_blacklist_retry_interval
          • balancer_emergency_percentage
          • balancer_log_interval
          • balancer_task_timeout
          • balancer_timeout_check_interval
          • balancer_tolerance_percentage
          • bf_cache_miss_count_threshold
          • bf_cache_priority
          • builtin_db_data_verify_cycle
          • cache_wash_threshold
          • clog_disk_utilization_threshold
          • clog_expire_days
          • clog_cache_priority
          • clog_disk_usage_limit_percentage
          • clog_sync_time_warn_threshold
          • clog_transport_compress_func
          • cpu_reserved
          • cluster
          • cluster_id
          • config_additional_dir
          • cpu_count
          • data_copy_concurrency
          • data_dir
          • data_disk_usage_limit_percentage
          • data_storage_error_tolerance_time
          • data_storage_warning_tolerance_time
          • datafile_disk_percentage
          • datafile_size
          • dead_socket_detection_timeout
          • debug_sync_timeout
          • default_compress
          • default_transport_compress_func
          • default_compress_func
          • default_row_format
          • devname
          • disk_io_thread_count
          • dtl_buffer_size
          • election_cpu_quota
          • election_blacklist_interval
          • enable_async_syslog
          • enable_auto_refresh_location_cache
          • enable_auto_leader_switch
          • enable_ddl
          • enable_global_freeze_trigger
          • enable_log_archive
          • enable_election_group
          • enable_major_freeze
          • enable_merge_by_turn
          • enable_manual_merge
          • enable_ob_ratelimit
          • enable_one_phase_commit
          • enable_perf_event
          • enable_pg
          • enable_record_trace_id
          • enable_record_trace_log
          • enable_rereplication
          • enable_rich_error_msg
          • enable_separate_sys_clog
          • enable_smooth_leader_switch
          • enable_rootservice_standalone
          • enable_sql_audit
          • enable_sql_operator_dump
          • enable_sys_table_ddl
          • enable_sys_unit_standalone
          • enable_syslog_recycle<main id="notice" type='explain'>
          • enable_syslog_wf
          • enable_tcp_keepalive
          • fast_recovery_concurrency
          • enable_upgrade_mode
          • flush_log_at_trx_commit
          • gc_wait_archive
          • fuse_row_cache_priority
          • global_index_build_single_replica_timeout
          • global_major_freeze_residual_memory
          • get_leader_candidate_rpc_timeout
          • global_write_halt_residual_memory
          • high_priority_net_thread_count
          • ignore_replay_checksum_error
          • ignore_replica_checksum_error
          • index_clog_cache_priority
          • index_info_block_cache_priority
          • index_cache_priority
          • ilog_index_expire_time
          • internal_sql_execute_timeout
          • large_query_threshold
          • large_query_worker_percentage
          • leak_mod_to_check
          • lease_time
          • location_cache_priority
          • location_cache_cpu_quota
          • location_cache_expire_time
          • location_cache_refresh_min_interval
          • location_cache_refresh_rpc_timeout
          • location_cache_refresh_sql_timeout
          • location_fetch_concurrency
          • location_refresh_thread_count
          • log_archive_batch_buffer_limit
          • log_archive_checkpoint_interval
          • max_kept_major_version_number
          • max_px_worker_count
          • max_string_print_length
          • max_syslog_file_count
          • memory_chunk_cache_size
          • memory_limit
          • memory_limit_percentage
          • memory_reserved
          • memstore_limit_percentage
          • merge_stat_sampling_ratio
          • merge_thread_count
          • merger_completion_percentage
          • merger_switch_leader_duration_time
          • merger_warm_up_duration_time
          • micro_block_merge_verify_level
          • migrate_concurrency
          • migration_disable_time
          • min_observer_version
          • minor_deferred_gc_time
          • mysql_port
          • net_thread_count
          • ob_event_history_recycle_interval
          • ob_ratelimit_stat_period
          • obconfig_url
          • tablet_meta_table_check_interval
          • tablet_meta_table_scan_batch_count
          • plan_cache_evict_interval
          • plan_cache_high_watermark
          • plan_cache_low_watermark
          • px_task_size
          • px_workers_per_cpu_quota
          • rdma_io_thread_count
          • recyclebin_object_expire_time
          • ls_meta_table_check_interval
          • resource_hard_limit
          • rebuild_replica_data_lag_threshold
          • rootservice_async_task_queue_size
          • rootservice_async_task_thread_count
          • rootservice_list
          • rootservice_memory_limit
          • rootservice_ready_check_interval
          • row_compaction_update_limit
          • rpc_port
          • rpc_timeout
          • schema_history_expire_time
          • schema_history_recycle_interval
          • server_balance_cpu_mem_tolerance_percent
          • server_balance_critical_disk_waterlevel
          • server_balance_disk_tolerance_percent
          • server_check_interval
          • server_cpu_quota_max
          • server_cpu_quota_min
          • server_permanent_offline_time
          • server_data_copy_out_concurrency
          • server_data_copy_in_concurrency
          • ssl_client_authentication
          • ssl_external_kms_info
          • stack_size
          • sql_audit_memory_limit
          • sys_bkgd_migration_change_member_list_timeout
          • sys_bkgd_migration_retry_num
          • sys_bkgd_net_percentage
          • switchover_process_thread_count
          • syslog_io_bandwidth_limit
          • sys_bkgd_io_high_percentage
          • sys_bkgd_io_low_percentage
          • syslog_level
          • sys_cpu_limit_trigger
          • system_memory
          • system_trace_level
          • tableapi_transport_compress_func
          • tablet_size
          • tcp_keepcnt
          • system_cpu_quota
          • tcp_keepidle
          • tcp_keepintvl
          • tenant_cpu_variation_per_server
          • tenant_task_queue_size
          • token_reserved_percentage
          • trace_log_sampling_interval
          • trace_log_slow_query_watermark
          • trx_2pc_retry_interval
          • tenant_groups
          • use_large_pages
          • user_block_cache_priority
          • user_row_cache_priority
          • trx_force_kill_threshold
          • trx_try_wait_lock_timeout
          • virtual_table_location_cache_expire_time
          • unit_balance_resource_weight
          • weak_read_version_refresh_interval
          • workers_per_cpu_quota
          • user_iort_up_percentage
          • zone
          • user_tab_col_stat_cache_priority
          • wait_leader_batch_count
          • log_disk_size
          • log_disk_percentage
          • tablet_ls_cache_priority
          • opt_tab_stat_cache_priority
          • zone_merge_concurrency
          • index_block_cache_priority
          • zone_merge_order
          • sql_login_thread_count
          • zone_merge_timeout
          • ob_esi_rpc_port
          • enable_asan_for_memory_context
          • enable_ob_esi_process
          • enable_cgroup
          • ob_esi_session_timeout
          • diag_syslog_per_error_limit
          • ob_esi_io_concurrency
          • ob_startup_mode
          • ob_esi_memory_limit
          • log_storage_warning_tolerance_time
          • ob_esi_syslog_level
          • ob_esi_max_syslog_file_count
          • sql_net_thread_count
          • minor_freeze_times
          • minor_merge_concurrency
          • minor_warm_up_duration_time
          • multiblock_read_gap_size
          • multiblock_read_size
          • ofs_list
          • partition_table_check_interval
          • replica_safe_remove_time
          • resource_soft_limit
          • restore_concurrency
          • rpc_client_authentication_method
          • rpc_server_authentication_method
          • row_purge_thread_count
          • datafile_maxsize
          • datafile_next
          • standby_fetch_log_bandwidth_limit
          • local_ip
          • observer_id
          • storage_meta_cache_priority
          • sql_protocol_min_tls_version
          • enable_rpc_authentication_bypass
          • strict_check_os_params
          • enable_dblink
        • 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
          • backup_data_file_size
          • io_category_config
          • log_disk_utilization_limit_threshold
          • log_disk_utilization_threshold
          • major_compact_trigger
          • ddl_thread_score
          • 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
          • kv_transport_compress_func
          • kv_transport_compress_threshold
          • optimizer_index_cost_adj
          • default_table_store_format
      • System variables
        • Overview of system variables
        • Global variables
          • auto_increment_cache_size
          • auto_increment_increment
          • auto_increment_offset
          • autocommit
          • binlog_row_image
          • block_encryption_mode
          • 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
          • datadir
          • debug_sync
          • default_password_lifetime
          • div_precision_increment
          • error_on_overlap_time
          • explicit_defaults_for_timestamp
          • foreign_key_checks
          • group_concat_max_len
          • identity
          • init_connect
          • innodb_strict_mode
          • interactive_timeout
          • license
          • lower_case_table_names
          • max_allowed_packet
          • max_connections
          • max_sp_recursion_depth
          • max_user_connections
          • net_buffer_length
          • net_read_timeout
          • net_write_timeout
          • nls_calendar
          • nls_characterset
          • nls_comp
          • nls_currency
          • nls_date_format
          • nls_date_language
          • nls_dual_currency
          • nls_iso_currency
          • nls_length_semantics
          • nls_nchar_characterset
          • nls_nchar_conv_excp
          • nls_numeric_characters
          • nls_sort
          • nls_territory
          • nls_timestamp_format
          • nls_timestamp_tz_format
          • ob_create_table_strict_mode
          • ob_bnl_join_cache_size
          • ob_default_replica_num
          • ob_compatibility_mode
          • ob_enable_blk_nestedloop_join
          • ob_early_lock_release
          • ob_enable_hash_group_by
          • ob_enable_aggregation_pushdown
          • ob_enable_index_direct_select
          • ob_enable_jit
          • ob_enable_plan_cache
          • ob_enable_sql_audit
          • ob_enable_transformation
          • ob_enable_transmission_checksum
          • ob_enable_truncate_flashback
          • ob_global_debug_sync
          • ob_log_level
          • ob_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
          • plsql_optimize_level
          • query_cache_size
          • query_cache_type
          • read_only
          • recyclebin
          • resource_manager_plan
          • secure_file_priv
          • sql_auto_is_null
          • sql_mode
          • sql_quote_show_create
          • sql_safe_updates
          • sql_select_limit
          • sql_throttle_current_priority
          • sql_throttle_network
          • sql_throttle_priority
          • sql_throttle_rt
          • sql_warnings
          • system_time_zone
          • time_zone
          • transaction_isolation
          • transaction_read_only
          • tx_isolation
          • tx_read_only
          • version
          • version_comment
          • wait_timeout
          • validate_password_check_user_name
          • validate_password_length
          • validate_password_mixed_case_count
          • validate_password_number_count
          • validate_password_policy
          • validate_password_special_char_count
          • server_uuid
          • default_storage_engine
          • ob_enable_rich_error_msg
          • cte_max_recursion_depth
          • regexp_stack_limit
          • event_scheduler
          • regexp_time_limit
          • 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
          • ob_default_lob_inrow_threshold
          • ob_enable_pl_cache
        • Session-level variables
          • is_result_accurate
          • last_insert_id
          • nls_language
          • ob_capability_flag
          • ob_enable_show_trace
          • ob_last_schema_version
          • ob_org_cluster_id
          • ob_proxy_partition_hit
          • ob_proxy_set_trx_executed
          • ob_trace_info
          • timestamp
          • tracefile_identifier
          • 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
    • Error codes
      • MySQL mode
        • Overview
        • 0001 to 3999
        • 4000 to 4499
        • 4500 to 4999
        • 5000 to 5999
        • 6000 to 6999
        • 7000 to 7999
        • 8000 to 8999
        • 9000 to 9499
        • 9500 to 9999
        • 10000 to 12000
        • 22998, 30926, 38104, and 38105
      • Oracle mode
        • Overview
        • ORA-00000 to ORA-00999
        • ORA-01000 to ORA-01499
        • ORA-01500 to ORA-01999
        • ORA-02000 to ORA-04999
        • ORA-05000 to ORA-10000
        • ORA-10000 to ORA-19999
        • ORA-20000 to ORA-29999
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SQL - V 4.3.0
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ORA-10000 to ORA-19999

Last Updated:2026-04-15 08:30:02  Updated
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Applicability

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

ORA-12000: a materialized view log already exists on table %s

  • Error code in OceanBase Database: 9756

  • SQLSTATE: HY000

  • Cause: You are attempting to create a materialized view log on a table that already has a materialized view log. Each primary table can have only one materialized view log.

  • Solution: All materialized views on a table can use the materialized view log of the table. To modify the existing materialized view log, execute the DROP MATERIALIZED VIEW LOG statement to drop the log and create a new one.

Note

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

ORA-12003: materialized view %s.%s does not exist

  • Error code in OceanBase Database: 9757

  • SQLSTATE: HY000

  • Cause: No materialized view object with the specified owner and name is found.

  • Solution: Try again.

Note

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

ORA-12006: materialized view %s.%s already exists

  • Error code in OceanBase Database: 9758

  • SQLSTATE: HY000

  • Cause: The materialized view already exists.

  • Solution: Drop the existing materialized view or create a materialized view with another name.

Note

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

ORA-12034: materialized view log on %s.%s younger than last refresh

  • Error code in OceanBase Database: 9759

  • SQLSTATE: HY000

  • Cause: The materialized view log is later than the change recorded when the materialized view is last refreshed.

  • Solution: Perform a complete refresh before performing a fast refresh.

Note

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

ORA-12052: cannot fast refresh materialized view %s.%s

  • Error code in OceanBase Database: 9760

  • SQLSTATE: HY000

  • Cause:

    • The ROWIDs of some tables are absent in the definition, or no UNIQUE constraint is defined on the to-be-joined columns in the right-side table of an outer join.
    • The table object on which the materialized view depends changes.
    • The materialized view log does not exist.
  • Solution:

    • Specify the FORCE or COMPLETE option.
    • Check and repair the schema of the base table to make sure that the definition of the materialized view is still valid, and perform a complete refresh for the materialized view.
    • Re-create the materialized view log and perform a complete refresh for the materialized view so that the view contains the complete latest data.

Note

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

ORA-12401: invalid label string

  • Error code in OceanBase Database: 5696

  • SQLSTATE: HY000

  • Cause: The strategy cannot convert the label string into a valid internal label.

  • Solution: Correct the syntax of the label string.

ORA-12416: policy string not found

  • Error code in OceanBase Database: 5695

  • SQLSTATE: HY000

  • Cause: The specified strategy does not exist in the database.

  • Solution: Enter a correct strategy name or create a strategy.

ORA-12432: LBAC error: %s

  • Error code in OceanBase Database: 5700

  • SQLSTATE: HY000

  • Cause: Label-based access control (LBAC) is performed.

  • Solution: Correct the problem identified in the error message.

ORA-12444: policy already applied to table

  • Error code in OceanBase Database: 5790

  • SQLSTATE: HY000

  • Cause: You are applying a strategy to a table that is already under strategy protection.

  • Solution: If you need to modify the table options, predicate, or label function, you must first remove the strategy from the table and then reapply it.

ORA-12447: policy role already exists for policy string

  • Error code in OceanBase Database: 5701

  • SQLSTATE: HY000

  • Cause: A strategy with the specified name already exists.

  • Solution: Change the strategy name or delete the existing strategy.

ORA-12461: undefined level string for policy string

  • Error code in OceanBase Database: 5698

  • SQLSTATE: HY000

  • Cause: The specified level is not defined for the strategy.

  • Solution: Specify a level identifier value for the strategy.

ORA-12462: undefined compartment string for policy string

  • Error code in OceanBase Database: 5697

  • SQLSTATE: HY000

  • Cause: The specified component is not defined for the strategy.

  • Solution: Specify a component identifier value for the strategy.

ORA-12463: undefined group string for policy string

  • Error code in OceanBase Database: 5699

  • SQLSTATE: HY000

  • Cause: The specified group is not defined for the strategy.

  • Solution: Specify a group identifier value for the strategy.

ORA-12470: NULL or invalid user label: %s

  • Error code in OceanBase Database: 5702

  • SQLSTATE: HY000

  • Cause: The entered user label is NULL or is beyond the authorization for the user.

  • Solution: Enter an authorized label for the user.

ORA-12702: invalid NLS parameter string used in SQL function

  • Error code in OceanBase Database: 5604

  • SQLSTATE: HY000

  • Cause: An unknown argument name or an invalid value is specified in the NLS argument string.

ORA-12704: COLLATION '%.*s' is not valid for CHARACTER SET '%.*s'

  • Error code in OceanBase Database: 5144

  • SQLSTATE: 42000

  • Cause:

    • Different character sets are used for the string operands (excluding nlsparams) of the operator or built-in function.

    • The nlsparams operand is not contained in the character set of the database.

    • A character set other than the character set of the database is used for the string data passed to the built-in function, but the built-in function does not support the character set in use.

    • The second argument of CHR() or CSCONVERT() is not CHAR_CS or NCHAR_CS.

    • The character set of the string expression in the VALUES clause of the INSERT statement or the SET clause of the UPDATE statement is different from the character set used by the column to be inserted.

    • In the table creation statement, the character set used for the values in the DEFAULT clause is different from the character set declared for the column.

    • An argument of the PL function does not meet the character set requirements of the argument.

ORA-12704: character set mismatch

  • Error code in OceanBase Database: 5808

  • SQLSTATE: HY000

  • Cause:

    • Different character sets are used for the string operands (excluding nlsparams) of the operator or built-in function.

    • The nlsparams operand is not contained in the character set of the database.

    • A character set other than the character set of the database is used for the string data passed to the built-in function, but the built-in function does not support the character set in use.

    • The second argument of CHR() or CSCONVERT() is not CHAR_CS or NCHAR_CS.

    • The character set of the string expression in the VALUES clause of the INSERT statement or the SET clause of the UPDATE statement is different from the character set used by the column to be inserted.

    • In the table creation statement, the character set used for the values in the DEFAULT clause is different from the character set declared for the column.

    • An argument of the PL function does not meet the character set requirements of the argument.

ORA-12705: Cannot access NLS data files or invalid environment specified

  • Error code in OceanBase Database: 5943

  • SQLSTATE: HY000

  • Cause:

    • An invalid NLS parameter or value is specified in the ALTER SESSION statement.

    • The name of environment variable NLS_LANG, ORA_NLSxx, or ORACLE_HOME is incorrectly spelled, and therefore the NLS data file cannot be found.

  • Solution:

    • Check the syntax of the ALTER SESSION statement and the NLS parameter, correct the syntax errors, and try this statement again.

    • Make sure that the name of the environment variable is correctly spelled.

ORA-12725: unmatched parentheses in regular expression

  • Error code in OceanBase Database: 5813

  • SQLSTATE: HY000

  • Cause: Parentheses (()) in the regular expression do not appear in pairs.

  • Solution: Make sure that the parentheses are symmetric.

ORA-12726: unmatched bracket in regular expression

  • Error code in OceanBase Database: 5812

  • SQLSTATE: HY000

  • Cause: Square brackets ([]) in the regular expression do not appear in pairs.

  • Solution: Make sure that the parentheses are symmetric.

ORA-12727: invalid back reference in regular expression

  • Error code in OceanBase Database: 5814

  • SQLSTATE: HY000

  • Cause: The subexpression contains a back reference.

  • Solution: Make sure that the referenced subexpression is valid.

ORA-12728: invalid range in regular expression

  • Error code in OceanBase Database: 5815

  • SQLSTATE: HY000

  • Cause: An invalid range is found in the regular expression.

  • Solution: Make sure that a valid range is used.

ORA-12729: invalid character class in regular expression

  • Error code in OceanBase Database: 5816

  • SQLSTATE: HY000

  • Cause: An unknown character class is found in the regular expression.

  • Solution: Use a valid character class.

ORA-12731: invalid collation class in regular expression

  • Error code in OceanBase Database: 5817

  • SQLSTATE: HY000

  • Cause: An unknown collation class is found in the regular expression.

  • Solution: Use a valid collation class.

ORA-12801: error signaled in parallel query server

  • Error code in OceanBase Database: 5736

  • SQLSTATE: HY000

  • Cause: When Parallel eXecution (PX) needs to be terminated, this error code is broadcasted to all execution nodes to terminate the current execution.

  • Solution: Find the cause of interruption in the execution log or contact OceanBase Technical Support for troubleshooting.

ORA-12827: insufficient parallel query worker available

  • Error code in OceanBase Database: 5345

  • SQLSTATE: HY000

  • Cause: The parallel_servers_target parameter is specified, but the number of obtained slaves is less than the specified lower limit or reaches the upper limit.

  • Solution: Increase the value of parallel_servers_target and execute the query again, or wait for slaves to be released after some ongoing queries are completed.

ORA-12899: value too large for column '%.*s' at row %ld

  • Error code in OceanBase Database: 5167

  • SQLSTATE: 22001

  • Cause: The column value to be inserted or updated exceeds the width limit.

  • Solution: Check the correctness of the SQL statement. Check the data types of the source and destination columns. Increase the width of the destination column or use a subset, namely, a substring, of the source column.

ORA-12984: cannot drop partitioning column '%.*s'

  • Error code in OceanBase Database: 5502

  • SQLSTATE: HY000

  • Cause: You are attempting to drop the partitioning key from a partitioned table.

  • Solution: Do not perform this operation.

Note

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

ORA-12991: column is referenced in a multi-column constraint

  • Error code in OceanBase Database: 5792

  • SQLSTATE: HY000

  • Cause: You are attempting to delete a column referenced by some constraints.

  • Solution: Delete all constraints that reference the column or specify CASCADE CONSTRAINTS in the statement.

ORA-12991: column \'%.*s\' is referenced in a multi-column constraint \'%.*s\'

  • Error code in OceanBase Database: 5859

  • SQLSTATE: HY000

  • Cause: You are attempting to delete a column referenced by some constraints.

  • Solution: Delete all constraints that reference the column or specify CASCADE CONSTRAINTS in the statement.

ORA-12992: cannot drop parent key column

  • Error code in OceanBase Database: 5793

  • SQLSTATE: HY000

  • Cause: You are attempting to drop a parent key column.

  • Solution: Delete all constraints that reference this parent key column, or specify CASCADE CONSTRAINTS in the statement.

ORA-13000: dimension number is out of range

  • Error code in OceanBase Database: 7290

  • SQLSTATE: HY000

  • Cause: The specified dimension is less than 1 or greater than ($2^{64} - 1$).

  • Solution: Make sure that the dimension value ranges from 1 to ($2^{64} - 1$).

Note

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

ORA-13028: Invalid Gtype in the SDO_GEOMETRY object

  • Error code in OceanBase Database: 7291

  • SQLSTATE: HY000

  • Cause: The SDO_GTYPE value of the SDO_GEOMETRY object is invalid.

  • Solution: Make sure that the Gtype of the geometry is valid.

Note

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

ORA-13029: Invalid SRID in the SDO_GEOMETRY object

  • Error code in OceanBase Database: 7292

  • SQLSTATE: HY000

  • Cause: The SDO_SRID value of the SDO_GEOMETRY object is invalid. The specified SRID may be beyond the valid SRID range.

  • Solution: Make sure that the SRID of the geometry is valid.

Note

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

ORA-13031: Invalid Gtype in the SDO_GEOMETRY object for point object

  • Error code in OceanBase Database: 7293

  • SQLSTATE: HY000

  • Cause: The SDO_GTYPE value of the SDO_GEOMETRY object is invalid. The value of SDO_ELEM_INFO_ARRAY or SDO_ORDINATE_ARRAY is NULL but the type specified by SDO_GTYPE is not a POINT type.

  • Solution: Make sure that the Gtype of the geometry is valid.

Note

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

ORA-13032: Invalid NULL SDO_GEOMETRY object

  • Error code in OceanBase Database: 7294

  • SQLSTATE: HY000

  • Cause: The SDO_POINT_TYPE, SDO_ELEM_INFO_ARRAY, or SDO_ORDINATE_ARRAY value of the SDO_GEOMETRY object is invalid.

  • Solution: Make sure that the field values of the geometry are valid. To specify a NULL geometry, set SDO_GEOMETRY to NULL instead of setting each field to NULL.

Note

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

ORA-13033: Invalid data in the SDO_ELEM_INFO_ARRAY in SDO_GEOMETRY object

  • Error code in OceanBase Database: 7295

  • SQLSTATE: HY000

  • Cause: Invalid data exists in the SDO_ELEM_INFO_ARRAY field of the SDO_GEOMETRY object.

  • Solution: Make sure that the data of the geometry is valid.

Note

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

ORA-13034: Invalid data in the SDO_ORDINATE_ARRAY in SDO_GEOMETRY object

  • Error code in OceanBase Database: 7296

  • SQLSTATE: HY000

  • Cause: Invalid data exists in the SDO_ELEM_INFO_ARRAY field of the SDO_GEOMETRY object.

  • Solution: Make sure that the data of the geometry is valid.

Note

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

ORA-13207: incorrect use of the ['%.*s'] operator

  • Error code in OceanBase Database: 5804

  • SQLSTATE: HY000

  • Cause: An error occurred while using the specified operator.

  • Solution: Check the parameters and return type of the operator.

ORA-14019: partition bound element must be one of: string, datetime or interval literal, number, or MAXVALUE

  • Error code in OceanBase Database: 5275

  • SQLSTATE: HY000

  • Cause: The partition bound list contains elements of invalid types. To be specific, the elements are not digits, null strings, datetime, interval literals, or MAXVALUE.

  • Solution: Make sure that all elements in the partition bound list are of valid types.

ORA-14019: partition bound element must be one of: string, datetime or interval literal, number, or MAXVALUE

  • Error code in OceanBase Database: 5285

  • SQLSTATE: HY000

  • Cause: The partition bound list contains elements of invalid types. To be specific, the elements are not digits, null strings, datetime, interval literals, or MAXVALUE.

  • Solution: Make sure that all elements in the partition bound list are of valid types.

ORA-14020: this physical attribute may not be specified for a table partition

  • Error code in OceanBase Database: 4398
  • SQLSTATE: HY000
  • Cause: You have specified an incompatible partitioning method when you create the partitioned table. For example, you may have specified RANGE-LIST partitioning and HASH-KEY partitioning.
  • Solution:
    • Change the partitioning method. If you want to use both RANGE-LIST partitioning and HASH-KEY partitioning, you can use a compatible partitioning method. Note that changing the partitioning method or partitioning a partitioned table may affect the existing data and applications. Proceed with caution.
    • Separate the partitions: If you need to use incompatible partitioning methods, you can split the partitioned table into multiple tables and use different partitioning methods for the tables.

Note

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

ORA-14036: partition bound value too large for column

  • Error code in OceanBase Database: 5354

  • SQLSTATE: 22001

  • Cause: The length of a partition bound value exceeds that of the corresponding partitioning column.

  • Solution: Make sure that the upper bounds of partitions do not exceed the lengths of the corresponding partitioning columns.

ORA-14037: partition bound of partition '%.*s' is too high

  • Error code in OceanBase Database: 5281

  • SQLSTATE: HY000

  • Cause: The upper bound of a partition is greater than that of the next partition.

  • Solution: Make sure that the upper bound of each partition, except for the last partition, is less than that of the next partition.

ORA-14047: ALTER TABLE|INDEX RENAME may not be combined with other operations

  • Error code in OceanBase Database: 5863

  • SQLSTATE: HY000

  • Cause: The ALTER TABLE or ALTER INDEX statement attempted to combine the RENAME operation with other operations, which is not allowed.

  • Solution: Make sure that the ALTER TABLE or ALTER INDEX statement contains only the RENAME operation.

ORA-14060: data type or length of a table partitioning column may not be changed

  • Error code in OceanBase Database: 5895

  • SQLSTATE: HY000

  • Cause: The ALTER TABLE statement is used to modify the data type or length of a partitioning column in a table named by using the ALTER TABLE statement.

  • Solution: Do not modify the data type or length of partitioning columns in a table.

ORA-14074: partition bound must collate higher than that of the last partition

  • Error code in OceanBase Database: 5353

  • SQLSTATE: HY000

  • Cause: The partition bound specified in the ALTER TABLE ADD PARTITION statement is not higher than the bound of the last partition in the table.

  • Solution: Make sure that the bound of the partition to be added is higher than that of the last partition in the table.

ORA-14082: New partition name %.*s must differ from that of any other partition or subpartition of the object.

  • Error code in OceanBase Database: 5493
  • SQLSTATE: HY000
  • Cause: When you modify the name of a partition of a table, the new name is already taken by an existing partition or subpartition.
  • Solution: Use another name or delete the existing partition or subpartition with the name.

Note

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

ORA-14100: partition extended table name cannot refer to a remote object

  • Error code in OceanBase Database: 5899

  • SQLSTATE: HY000

  • Cause: You are attempting to rename a remote object by using a partition-extended table name syntax.

  • Solution: Correct the expression and retry.

ORA-14109: partition-extended object names may only be used with tables and editioning views

  • Error code in OceanBase Database: 5977

  • SQLSTATE: HY000

  • Cause: You are attempting to use a partition-extended object name for an object which was not a table or an editioning view.

  • Solution: Do not use the partition-extended name syntax for objects other than tables or editioning views.

Note

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

ORA-14159: duplicate subpartition name

  • Error code in OceanBase Database: 5867

  • SQLSTATE: HY000

  • Cause: The name of a subpartition of the table or index is not unique.

  • Solution: Rename the subpartition to make sure that its name is unique among subpartitions of the table or index.

ORA-14170: cannot specify <(sub)partition-description> clause in CREATE TABLE or CREATE INDEX

  • Error code in OceanBase Database: 5866

  • SQLSTATE: HY000

  • Cause: The request generates a default partition description (possibly through PARTITIONS number-of-partitions) and specifies the <(sub)partition-description> clause, which is not allowed.

  • Solution: Delete one of the clauses.

ORA-14214: VALUES (<value list>) cannot be used for Range subpartitioned tables

  • Error code in OceanBase Database: 5876

  • SQLSTATE: HY000

  • Cause: The VALUES (value list) clause is used for RANGE-subpartitioned tables.

  • Solution: Use the VALUES LESS THAN or AT clause for RANGE-subpartitioned tables.

ORA-14217: VALUES (<value list>) clause expected

  • Error code in OceanBase Database: 5877

  • SQLSTATE: HY000

  • Cause: The VALUES (value list) clause is not specified for a LIST-subpartitioned table.

  • Solution: Specify the VALUES (value list) clause.

ORA-14251: Specified subpartition does not exist

  • Error code in OceanBase Database: 5830

  • SQLSTATE: HY000

  • Cause: No subpartition is found for the object.

  • Solution: Use the valid subpartition name and try again.

ORA-14253: table is not partitioned by composite partition method

  • Error code in OceanBase Database: 5875

  • SQLSTATE: HY000

  • Cause: The possible causes are as follows:

    • The table in a subpartition maintenance operation, such as ALTER TABLE [EXCHANGE | MODIFY | MOVE | TRUNCATE] SUBPARTITION or ALTER TABLE MODIFY PARTITION [ADD | COALESCE] SUBPARTITION, is not partitioned by using the composite partitioning method.

    • The table in the MODIFY DEFAULT ATTRIBUTES FOR PARTITION operation is partitioned by using a method other than composite partitioning.

    • The table in the ALTER TABLE MODIFY SUBPARTITION [UNUSABLE LOCAL INDEXES | REBUILD UNUSABLE LOCAL INDEXES] statement is not partitioned by using the composite partitioning method.

  • Solution: Make sure that the table is partitioned by using the composite partitioning method.

ORA-14263: New subpartition name %.*s must differ from that of any other partition or subpartition of the object.

  • Error code in OceanBase Database: 5494
  • SQLSTATE: HY000
  • Cause: When you modify the name of a subpartition of a table, the new name is already taken by an existing partition or subpartition.
  • Solution: Use another name or delete the existing partition or subpartition with the name.

Note

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

ORA-14265: data type or length of a table subpartitioning column may not be changed

  • Error code in OceanBase Database: 5896

  • SQLSTATE: HY000

  • Cause: The ALTER TABLE statement is used to modify the data type or length of a column used to partition a table named by using the ALTER TABLE statement.

  • Solution: Do not modify the data type or length of table subpartitioning columns.

ORA-14300: partitioning key maps to a partition outside maximum permitted number of partitions

  • Error code in OceanBase Database: 6274

  • SQLSTATE: HY000

  • Cause: The inserted row had a partitioning key that maps to a partition number greater than 1,048,575.

  • Solution: Make sure that the partitioning key maps to no more than 1,048,575 partitions or subpartitions.

Note

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

ORA-14308: partition bound element must be one of: string, datetime or interval literal, number, or NULL

  • Error code in OceanBase Database: 5355

  • SQLSTATE: HY000

  • Cause: The partition bound list contains elements of invalid types, which are not digits, null strings, datetime, interval literals, or NULL.

  • Solution: Make sure that all elements in the partition bound list are of valid types.

ORA-14310: VALUES LESS THAN or AT clause cannot be used with List partitioned tables

  • Error code in OceanBase Database: 5878

  • SQLSTATE: HY000

  • Cause: The VALUES LESS THAN or VALUES LESS AT clause can be used only for RANGE-partitioned tables.

  • Solution: Use the VALUES (value list) clause for LIST-partitioned tables.

ORA-14311: Expecting VALUES LESS THAN or AT clause

  • Error code in OceanBase Database: 5879

  • SQLSTATE: HY000

  • Cause: The VALUES (value list) clause can be used only for LIST-partitioned tables.

  • Solution: Use the VALUES LESS THAN clause for RANGE-partitioned tables.

ORA-14312: invalid time limit specified

  • Error code in OceanBase Database: 5882

  • SQLSTATE: HY000

  • Cause: A non-positive value is specified for the time parameter of the dbms_lock.sleep(time) package.

  • Solution: Specify a positive value.

ORA-14318: DEFAULT partition must be last partition specified

  • Error code in OceanBase Database: 5491
  • SQLSTATE: 42000
  • Cause: The DEFAULT partition must be the last specified partition.

Note

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

ORA-14400: inserted partition key does not map to any partition

  • Error code in OceanBase Database: 5284

  • SQLSTATE: HY000

  • Cause:

    • You are attempting to insert a record to a RANGE or COMPOSITE RANGE object, but the concatenated partitioning key included in the RANGE or COMPOSITE RANGE object is beyond the concatenated partition bound list of the last partition.

    • You are attempting to insert a record to a LIST object, but the partitioning key included in this object does not match the specified literal value of any partition.

  • Solution: Do not insert this key, add a partition that accepts this key, or add a value matching this key to the partition configuration.

ORA-14402: updating partition key column would cause a partition change

  • Error code in OceanBase Database: 5350

  • SQLSTATE: HY000

  • Cause: The UPDATE operation caused a change of the partition to which the row belongs.

  • Solution: Enable the enable row movement attribute for the table.

ORA-14501: object is not partitioned

  • Error code in OceanBase Database: 5829

  • SQLSTATE: HY000

  • Cause: The table or index is not partitioned. The syntax is invalid.

  • Solution: Retry the command with the valid syntax.

ORA-14551: cannot perform a DML operation inside a query

  • Error code in OceanBase Database: 9709

  • SQLSTATE: HY000

  • Cause: A DML operation like INSERT, UPDATE, DELETE, or SELECT-for-UPDATE cannot be performed inside a query or under a PDML slave.

  • Solution: Make sure that the offending DML operation is not performed, or use an autonomous transaction to perform the DML operation within the query or PDML slave.

Note

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

ORA-14552: cannot perform a DDL commit or rollback inside a query or DML tips

  • Error code in OceanBase Database: 9710

  • SQLSTATE: HY000

  • Cause: DDL operations (such as creating tables or views) and transaction control statements (such as commit and rollback) cannot be performed inside a query or a DML statement.

  • Solution: Make sure that the offending operation is not performed, or use autonomous transactions to perform the operation within the query or DML statement.

Note

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

ORA-14750: Range partitioned table with INTERVAL clause has more than one column

  • Error code in OceanBase Database: 5997

  • SQLSTATE: HY000

  • Cause: You are attempting to create an interval-partitioned table with more than one partitioning columns.

  • Solution: Use a single partitioning column.

Note

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

ORA-14751: Invalid data type for partitioning column of an interval partitioned table

  • Error code in OceanBase Database: 5998

  • SQLSTATE: HY000

  • Cause: You are attempting to use interval partitioning on a table partitioned on a column whose data type is not number or date/time.

  • Solution: Use only number or date/time columns as partitioning columns for interval-partitioned tables.

Note

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

ORA-14752: Interval expression is not a constant of the correct type

  • Error code in OceanBase Database: 5999

  • SQLSTATE: HY000

  • Cause: You are attempting to use either a nonconstant interval or an interval whose data type does not correspond to the partitioning column.

  • Solution: Use only constant expressions for the interval. If the data type of the partitioning column is numeric, the interval must be a numeric constant. If the data type is date/time, the interval must be a constant of the interval type.

Note

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

ORA-14753: Interval cannot be zero

  • Error code in OceanBase Database: 6273

  • SQLSTATE: HY000

  • Cause: The interval mapped to zero.

  • Solution: Use a non-zero interval.

Note

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

ORA-14757: Table is already a range partitioned table

  • Error code in OceanBase Database: 6000

  • SQLSTATE: HY000

  • Cause: SET INTERVAL() is used to convert an interval-partitioned table to a RANGE-partitioned table. You are not allowed to use SET INTERVAL() on a RANGE-partitioned table.

  • Solution: Use SET INTERVAL() only on an interval-partitioned table.

Note

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

ORA-14758: Last partition in the range section cannot be dropped

  • Error code in OceanBase Database: 4730

  • SQLSTATE: HY000

  • Cause: You are attempting to drop the last RANGE partition of an interval-partitioned table.

  • Solution: Do not drop the last RANGE partition of an interval-partitioned table.

Note

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

ORA-14759: SET INTERVAL is not legal on this table

  • Error code in OceanBase Database: 4731

  • SQLSTATE: HY000

  • Cause: The SET INTERVAL clause was specified. ALTER TABLE SET INTERVAL is allowed only on a RANGE-partitioned table with a single partitioning column. Additionally, this table cannot have a MAXVALUE partition.

  • Solution: Use SET INTERVAL only on a valid table.

Note

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

ORA-14760: ADD PARTITION is not permitted on Interval partitioned objects

  • Error code in OceanBase Database: 6269

  • SQLSTATE: HY000

  • Cause: You are attempting to execute the ALTER TABLE ADD PARTITION statement on an interval-partitioned object to add a partition.

  • Solution: Do not perform the operation on an interval-partitioned object. To add a partition, insert a row into the object.

ORA-14761: MAXVALUE partition cannot be specified for Interval partitioned objects

  • Error code in OceanBase Database: 6270

  • SQLSTATE: HY000

  • Cause: You are attempting to create a partition or subpartition with a MAXVALUE high bound on an interval-partitioned or interval-subpartitioned object.

  • Solution: Do not create a partition or subpartition with a MAXVALUE high bound.

ORA-14767: Cannot specify this interval with existing high bounds

  • Error code in OceanBase Database: 6271

  • SQLSTATE: HY000

  • Cause: The interval specified conflicts with the existing high bound for the last partition. The combination might lead to invalid dates for high bounds in the future

  • Solution: If you are executing CREATE TABLE, try to specify a different high bound value for the last partition or specify a different interval. If you are executing ALTER TABLE SET INTERVAL, choose either a different interval, or modify the table to change the high bound for the last partition.

ORA-16000: standby tenant is read only

  • Error code in OceanBase Database: 4688

  • SQLSTATE: HY000

  • Cause: The standby cluster supports only read operations. This error is returned when you execute write statements, such as DDL statements.

  • Solution: Switch the standby cluster to be the primary cluster.

ORA-19010: Cannot insert XML fragments

  • Error code in OceanBase Database: 7411
  • SQLSTATE: 42000
  • Cause: The XML file to be inserted is invalid.
  • Solution:
    1. Make sure that the XML data to be inserted is complete and conforms to the XML specifications.
    2. Use the XMLType data type, so that you can store the XML data in a separate XMLType column.

Note

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

ORA-19012: Cannot convert XML fragment to the required datatype

  • Error code in OceanBase Database: 7406
  • SQLSTATE: 42000
  • Cause: The XML fragment cannot be converted to the required data type.
  • Solution: Make sure that the data type and XML data are correct.

Note

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

ORA-19025: EXTRACTVALUE cannot extract values of multiple nodes

  • Error code in OceanBase Database: 7405
  • SQLSTATE: 42000
  • Cause: The EXTRACTVALUE function cannot extract values from multiple nodes.
  • Solution: Use other functions or redesign the XPath expression for the query.

Note

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

ORA-19026: EXTRACTVALUE can only retrieve value of leaf nodetoo small.

  • Error code in OceanBase Database: 7410
  • SQLSTATE: 42000
  • Cause: The EXTRACTVALUE function tried to extract a value from a non-leaf node.
  • Solution: Make sure that the specified XPath expression is correct and points to a leaf node.

Note

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

ORA-19044: character length specified for XMLSerialize is too small.

  • Error code in OceanBase Database: 7408
  • SQLSTATE: 42000
  • Cause: The character length specified for the XMLSerialize function is too short.
  • Solution: Check the specified character length and data size, and make sure that all data can be accommodated.

Note

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

ORA-19102: XQuery string literal expected

  • Error code in OceanBase Database: 7423

  • SQLSTATE: 42000

  • Cause: A string literal that contains the XQuery expression is missing.

  • Solution: Specify the XQuery expression as a string literal.

Note

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

ORA-19110: unsupported XQuery expression

  • Error code in OceanBase Database: 7428

  • SQLSTATE: 42000

  • Cause: The expression specified in the XQuery is not supported.

  • Solution: Rewrite the XQuery by using a supported expression.

Note

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

ORA-19114: XPST0003 - error during parsing the XQuery expression : %.*s

  • Error code in OceanBase Database: 7422

  • SQLSTATE: 42000

  • Cause: An error occurs while parsing the XQuery expression.

  • Solution: Check the error message for the possible causes.

Note

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

ORA-19118: XQST0066 - duplicate default namespace definition - %s.

  • Error code in OceanBase Database: 7420

  • SQLSTATE: 42000

  • Cause: The given namespace URI is used in multiple default namespace declarations.

  • Solution: Delete the duplicate default namespace definitions.

Note

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

ORA-19208: parameter %d of function XMLELEMENT must be aliased

  • Error code in OceanBase Database: 7413
  • SQLSTATE: 42000
  • Cause: The Nth parameter of the XMLELEMENT () function does not have an alias.
  • Solution:
    1. Make sure that the attribute syntax of the XMLELEMENT() function is correct and valid.
    2. Make sure that aliases are specified for attribute parameters of the XMLELEMENT () function.

Note

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

ORA-19224: XPTY0004 - XQuery static type mismatch: expected - node()* got -

  • Error code in OceanBase Database: 7425

  • SQLSTATE: 42000

  • Cause: This expression cannot be used because its static type is unsuitable for the context where it is used.

  • Solution: Change the type or add an appropriate conversion function in the expression.

Note

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

ORA-19253: XPST0033 - too many declarations for namespace prefix %.*s

  • Error code in OceanBase Database: 7424

  • SQLSTATE: 42000

  • Cause: The query prelog contains multiple declarations for the same namespace prefix.

  • Solution: Delete the duplicate namespace prefix definitions.

Note

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

ORA-19279: XPTY0004 - XQuery dynamic type mismatch: expected singleton sequence - got multi-item sequence

  • Error code in OceanBase Database: 7421

  • SQLSTATE: 42000

  • Cause: The XQuery sequence passed in contains multiple items.

  • Solution: Modify the XQuery expression so that only one item sequence is returned.

Note

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

ORA-19276: XPST0005 - XPath step specifies an invalid element/attribute name: %.*s

  • Error code in OceanBase Database: 7426

  • SQLSTATE: 42000

  • Cause: An invalid element or attribute name is specified in the XPath step. The element or attribute name does not match any node according to the input XML schema or structure.

  • Solution: Correct the element or attribute name.

Note

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

ORA-19277: XPST0005 - XPath step specifies an item type matching no node: %.*s

  • Error code in OceanBase Database: 7427

  • SQLSTATE: 42000

  • Cause: The item type specified in the XPath step does not match any node according to the input XML schema or structure.

  • Solution: Correct the item type definition.

Note

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

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What is on this page
ORA-12000: a materialized view log already exists on table %s
ORA-12003: materialized view %s.%s does not exist
ORA-12006: materialized view %s.%s already exists
ORA-12034: materialized view log on %s.%s younger than last refresh
ORA-12052: cannot fast refresh materialized view %s.%s
ORA-12401: invalid label string
ORA-12416: policy string not found
ORA-12432: LBAC error: %s
ORA-12444: policy already applied to table
ORA-12447: policy role already exists for policy string
ORA-12461: undefined level string for policy string
ORA-12462: undefined compartment string for policy string
ORA-12463: undefined group string for policy string
ORA-12470: NULL or invalid user label: %s
ORA-12702: invalid NLS parameter string used in SQL function
ORA-12704: COLLATION '%.*s' is not valid for CHARACTER SET '%.*s'
ORA-12704: character set mismatch
ORA-12705: Cannot access NLS data files or invalid environment specified
ORA-12725: unmatched parentheses in regular expression
ORA-12726: unmatched bracket in regular expression
ORA-12727: invalid back reference in regular expression
ORA-12728: invalid range in regular expression
ORA-12729: invalid character class in regular expression
ORA-12731: invalid collation class in regular expression
ORA-12801: error signaled in parallel query server
ORA-12827: insufficient parallel query worker available
ORA-12899: value too large for column '%.*s' at row %ld
ORA-12984: cannot drop partitioning column '%.*s'
ORA-12991: column is referenced in a multi-column constraint
ORA-12991: column \'%.*s\' is referenced in a multi-column constraint \'%.*s\'
ORA-12992: cannot drop parent key column
ORA-13000: dimension number is out of range
ORA-13028: Invalid Gtype in the SDO_GEOMETRY object
ORA-13029: Invalid SRID in the SDO_GEOMETRY object
ORA-13031: Invalid Gtype in the SDO_GEOMETRY object for point object
ORA-13032: Invalid NULL SDO_GEOMETRY object
ORA-13033: Invalid data in the SDO_ELEM_INFO_ARRAY in SDO_GEOMETRY object
ORA-13034: Invalid data in the SDO_ORDINATE_ARRAY in SDO_GEOMETRY object
ORA-13207: incorrect use of the ['%.*s'] operator
ORA-14019: partition bound element must be one of: string, datetime or interval literal, number, or MAXVALUE
ORA-14019: partition bound element must be one of: string, datetime or interval literal, number, or MAXVALUE
ORA-14020: this physical attribute may not be specified for a table partition
ORA-14036: partition bound value too large for column
ORA-14037: partition bound of partition '%.*s' is too high
ORA-14047: ALTER TABLE|INDEX RENAME may not be combined with other operations
ORA-14060: data type or length of a table partitioning column may not be changed
ORA-14074: partition bound must collate higher than that of the last partition
ORA-14082: New partition name %.*s must differ from that of any other partition or subpartition of the object.
ORA-14100: partition extended table name cannot refer to a remote object
ORA-14109: partition-extended object names may only be used with tables and editioning views
ORA-14159: duplicate subpartition name
ORA-14170: cannot specify <(sub)partition-description> clause in CREATE TABLE or CREATE INDEX
ORA-14214: VALUES (<value list>) cannot be used for Range subpartitioned tables
ORA-14217: VALUES (<value list>) clause expected
ORA-14251: Specified subpartition does not exist
ORA-14253: table is not partitioned by composite partition method
ORA-14263: New subpartition name %.*s must differ from that of any other partition or subpartition of the object.
ORA-14265: data type or length of a table subpartitioning column may not be changed
ORA-14300: partitioning key maps to a partition outside maximum permitted number of partitions
ORA-14308: partition bound element must be one of: string, datetime or interval literal, number, or NULL
ORA-14310: VALUES LESS THAN or AT clause cannot be used with List partitioned tables
ORA-14311: Expecting VALUES LESS THAN or AT clause
ORA-14312: invalid time limit specified
ORA-14318: DEFAULT partition must be last partition specified
ORA-14400: inserted partition key does not map to any partition
ORA-14402: updating partition key column would cause a partition change
ORA-14501: object is not partitioned
ORA-14551: cannot perform a DML operation inside a query
ORA-14552: cannot perform a DDL commit or rollback inside a query or DML tips
ORA-14750: Range partitioned table with INTERVAL clause has more than one column
ORA-14751: Invalid data type for partitioning column of an interval partitioned table
ORA-14752: Interval expression is not a constant of the correct type
ORA-14753: Interval cannot be zero
ORA-14757: Table is already a range partitioned table
ORA-14758: Last partition in the range section cannot be dropped
ORA-14759: SET INTERVAL is not legal on this table
ORA-14760: ADD PARTITION is not permitted on Interval partitioned objects
ORA-14761: MAXVALUE partition cannot be specified for Interval partitioned objects
ORA-14767: Cannot specify this interval with existing high bounds
ORA-16000: standby tenant is read only
ORA-19010: Cannot insert XML fragments
ORA-19012: Cannot convert XML fragment to the required datatype
ORA-19025: EXTRACTVALUE cannot extract values of multiple nodes
ORA-19026: EXTRACTVALUE can only retrieve value of leaf nodetoo small.
ORA-19044: character length specified for XMLSerialize is too small.
ORA-19102: XQuery string literal expected
ORA-19110: unsupported XQuery expression
ORA-19114: XPST0003 - error during parsing the XQuery expression : %.*s
ORA-19118: XQST0066 - duplicate default namespace definition - %s.
ORA-19208: parameter %d of function XMLELEMENT must be aliased
ORA-19224: XPTY0004 - XQuery static type mismatch: expected - node()* got -
ORA-19253: XPST0033 - too many declarations for namespace prefix %.*s
ORA-19279: XPTY0004 - XQuery dynamic type mismatch: expected singleton sequence - got multi-item sequence
ORA-19276: XPST0005 - XPath step specifies an invalid element/attribute name: %.*s
ORA-19277: XPST0005 - XPath step specifies an item type matching no node: %.*s
ORA-12000: a materialized view log already exists on table %s
ORA-12003: materialized view %s.%s does not exist
ORA-12006: materialized view %s.%s already exists
ORA-12034: materialized view log on %s.%s younger than last refresh
ORA-12052: cannot fast refresh materialized view %s.%s
ORA-12401: invalid label string
ORA-12416: policy string not found
ORA-12432: LBAC error: %s
ORA-12444: policy already applied to table
ORA-12447: policy role already exists for policy string
ORA-12461: undefined level string for policy string
ORA-12462: undefined compartment string for policy string
ORA-12463: undefined group string for policy string
ORA-12470: NULL or invalid user label: %s
ORA-12702: invalid NLS parameter string used in SQL function
ORA-12704: COLLATION '%.*s' is not valid for CHARACTER SET '%.*s'
ORA-12704: character set mismatch
ORA-12705: Cannot access NLS data files or invalid environment specified
ORA-12725: unmatched parentheses in regular expression
ORA-12726: unmatched bracket in regular expression
ORA-12727: invalid back reference in regular expression
ORA-12728: invalid range in regular expression
ORA-12729: invalid character class in regular expression
ORA-12731: invalid collation class in regular expression
ORA-12801: error signaled in parallel query server
ORA-12827: insufficient parallel query worker available
ORA-12899: value too large for column '%.*s' at row %ld
ORA-12984: cannot drop partitioning column '%.*s'
ORA-12991: column is referenced in a multi-column constraint
ORA-12991: column \'%.*s\' is referenced in a multi-column constraint \'%.*s\'
ORA-12992: cannot drop parent key column
ORA-13000: dimension number is out of range
ORA-13028: Invalid Gtype in the SDO_GEOMETRY object
ORA-13029: Invalid SRID in the SDO_GEOMETRY object
ORA-13031: Invalid Gtype in the SDO_GEOMETRY object for point object
ORA-13032: Invalid NULL SDO_GEOMETRY object
ORA-13033: Invalid data in the SDO_ELEM_INFO_ARRAY in SDO_GEOMETRY object
ORA-13034: Invalid data in the SDO_ORDINATE_ARRAY in SDO_GEOMETRY object
ORA-13207: incorrect use of the ['%.*s'] operator
ORA-14019: partition bound element must be one of: string, datetime or interval literal, number, or MAXVALUE
ORA-14019: partition bound element must be one of: string, datetime or interval literal, number, or MAXVALUE
ORA-14020: this physical attribute may not be specified for a table partition
ORA-14036: partition bound value too large for column
ORA-14037: partition bound of partition '%.*s' is too high
ORA-14047: ALTER TABLE|INDEX RENAME may not be combined with other operations
ORA-14060: data type or length of a table partitioning column may not be changed
ORA-14074: partition bound must collate higher than that of the last partition
ORA-14082: New partition name %.*s must differ from that of any other partition or subpartition of the object.
ORA-14100: partition extended table name cannot refer to a remote object
ORA-14109: partition-extended object names may only be used with tables and editioning views
ORA-14159: duplicate subpartition name
ORA-14170: cannot specify <(sub)partition-description> clause in CREATE TABLE or CREATE INDEX
ORA-14214: VALUES (<value list>) cannot be used for Range subpartitioned tables
ORA-14217: VALUES (<value list>) clause expected
ORA-14251: Specified subpartition does not exist
ORA-14253: table is not partitioned by composite partition method
ORA-14263: New subpartition name %.*s must differ from that of any other partition or subpartition of the object.
ORA-14265: data type or length of a table subpartitioning column may not be changed
ORA-14300: partitioning key maps to a partition outside maximum permitted number of partitions
ORA-14308: partition bound element must be one of: string, datetime or interval literal, number, or NULL
ORA-14310: VALUES LESS THAN or AT clause cannot be used with List partitioned tables
ORA-14311: Expecting VALUES LESS THAN or AT clause
ORA-14312: invalid time limit specified
ORA-14318: DEFAULT partition must be last partition specified
ORA-14400: inserted partition key does not map to any partition
ORA-14402: updating partition key column would cause a partition change
ORA-14501: object is not partitioned
ORA-14551: cannot perform a DML operation inside a query
ORA-14552: cannot perform a DDL commit or rollback inside a query or DML tips
ORA-14750: Range partitioned table with INTERVAL clause has more than one column
ORA-14751: Invalid data type for partitioning column of an interval partitioned table
ORA-14752: Interval expression is not a constant of the correct type
ORA-14753: Interval cannot be zero
ORA-14757: Table is already a range partitioned table
ORA-14758: Last partition in the range section cannot be dropped
ORA-14759: SET INTERVAL is not legal on this table
ORA-14760: ADD PARTITION is not permitted on Interval partitioned objects
ORA-14761: MAXVALUE partition cannot be specified for Interval partitioned objects
ORA-14767: Cannot specify this interval with existing high bounds
ORA-16000: standby tenant is read only
ORA-19010: Cannot insert XML fragments
ORA-19012: Cannot convert XML fragment to the required datatype
ORA-19025: EXTRACTVALUE cannot extract values of multiple nodes
ORA-19026: EXTRACTVALUE can only retrieve value of leaf nodetoo small.
ORA-19044: character length specified for XMLSerialize is too small.
ORA-19102: XQuery string literal expected
ORA-19110: unsupported XQuery expression
ORA-19114: XPST0003 - error during parsing the XQuery expression : %.*s
ORA-19118: XQST0066 - duplicate default namespace definition - %s.
ORA-19208: parameter %d of function XMLELEMENT must be aliased
ORA-19224: XPTY0004 - XQuery static type mismatch: expected - node()* got -
ORA-19253: XPST0033 - too many declarations for namespace prefix %.*s
ORA-19279: XPTY0004 - XQuery dynamic type mismatch: expected singleton sequence - got multi-item sequence
ORA-19276: XPST0005 - XPath step specifies an invalid element/attribute name: %.*s
ORA-19277: XPST0005 - XPath step specifies an item type matching no node: %.*s