OceanBase Migration Service

V4.3.1Enterprise Edition

OMS Documentation
OMS Introduction
- Overview of OMS
- Terms
- OMS HA
- Principles of Store
- Principles of Full-Import and Incr-Sync
- Data verification principles
- Architecture
  - Overview
  - Hierarchical functional system
  - Basic components
- OMS Oracle full migration design and impact
- Limitations
Quick Start
- Data migration process
- Data synchronization process
Deploy OMS
- Deployment types
- System and network requirements
- Memory and disk requirements
- Environment preparations
- Deploy OMS on a single node
- Deploy OMS on multiple nodes in a single region
- Deploy OMS on multiple nodes in multiple regions
- Scale out
- Scale down deployment
- Check the deployment
- Deploy a time-series database (Optional)
OMS console
- Log in to the OMS console
- Overview
- User center
  - Configure user information
  - Change your login password
  - Log out
Data migration
- Overview
- Migrate data from a MySQL database to a MySQL-compatible tenant of OceanBase Database
- Migrate data from a MySQL-compatible tenant of OceanBase Database to a MySQL database
- Migrate data from an Oracle database to the MySQL compatible mode of OceanBase Database
- Migrate data from the Oracle compatible mode of OceanBase Database to an Oracle database
- Migrate data from an Oracle database to the Oracle compatible mode of OceanBase Database
- Migrate data from a DB2 LUW database to an Oracle-compatible tenant of OceanBase Database
- Migrate data from an Oracle-compatible tenant of OceanBase Database to a DB2 LUW database
- Migrate data from a DB2 LUW database to a MySQL-compatible tenant of OceanBase Database
- Migrate data from a MySQL-compatible tenant of OceanBase Database to a DB2 LUW database
- Migrate data between OceanBase databases of the same tenant type
- Configure a bidirectional synchronization task
- Migrate data from a TiDB database to a MySQL-compatible tenant of OceanBase Database
- Migrate data from a PostgreSQL database to the Oracle compatible mode of OceanBase Database
- Migrate data from a PostgreSQL database to the MySQL compatible mode of OceanBase Database
- Migrate data from a PolarDB-X 1.0 database to a MySQL-compatible tenant of OceanBase Database
- Migrate incremental data from an Oracle-compatible tenant of OceanBase Database to a MySQL database
- Manage data migration tasks
  - View details of a data migration task
  - Rename a data migration task
  - View and modify migration objects
  - Use tags to Manage data migration tasks
  - Perform batch operations on data migration tasks
  - Download and import settings of migration objects
  - View and modify migration parameters
  - Download a conflict log file
  - Start and pause a data migration task
  - End and delete a data migration task
- Supported DDL operations and limits for synchronization
  - Synchronize DDL operations from a MySQL database to a MySQL-compatible tenant of OceanBase Database
    - Overview of DDL synchronization from MySQL to OceanBase Database's MySQL compatible mode
    - CREATE TABLE
      - Create a table
      - Create a column
      - Create indexes or constraints
      - Create partitions
    - Data type conversion
    - ALTER TABLE
      - Modify tables
      - Operations on columns
      - Operations on constraints and indexes
      - Partition operations
    - TRUNCATE TABLE
    - RENAME TABLE
    - DROP TABLE
    - CREATE INDEX
    - DROP INDEX
    - DDL incompatibilities between a MySQL database and a MySQL-compatible tenant of OceanBase Database
      - Overview
      - Incompatibilities of the CREATE TABLE statement
        Incompatibilities of CREATE TABLE
        Column types that are supported to create indexes or constraints
      - Incompatibilities of the ALTER TABLE statement
        Incompatibilities of ALTER TABLE
        Change the type of a constrained column
        Change the type of an unconstrained column
        Change the length of a constrained column
        Change the length of an unconstrained column
        Delete a constrained column
      - Incompatibilities of DROP INDEX operations
  - Synchronize DDL operations from the MySQL compatible mode of OceanBase Database to a MySQL database
  - DDL operations for synchronizing data from an Oracle database to an Oracle-compatible tenant of OceanBase Database
    - Overview of DDL synchronization from Oracle to OceanBase Database Oracle compatible mode
    - CREATE TABLE
      - Overview for CREATE TABLE
      - Create a relational table
        Create a relational table
        Define columns of a relational table
      - Virtual columns
      - Regular columns
      - Create partitions
        Overview for creating partitions
        Partitioning
        Subpartitioning
        Composite partitioning
        User-defined partitioning
        Subpartition templates
      - Constraints
        Overview
        Inline constraints
        Out-of-line constraints
    - CREATE INDEX
      - Overview
      - Oracle compatible mode
    - ALTER TABLE
      - Overview
      - Modify, drop, and add table attributes
      - Column attribute management
        Modify, drop, and add column attributes
        Rename a column
        Add columns and column attributes
        Modify column attributes
        Drop columns
      - Modify, drop, and add constraints
      - Partition management
        Modify, drop, and add partitions
        Drop a partition
        Drop a subpartition
        Add partitions and subpartitions
        Modify partitions
        Drop partition data
    - DROP TABLE
    - RENAME OBJECT
    - TRUNCATE TABLE
    - DROP INDEX
    - DDL incompatibilities between an Oracle database and an Oracle-compatible tenant of OceanBase Database
      - Overview
      - Incompatibilities of CREATE TABLE
      - Incompatibilities in table modification operations
        Incompatibilities of ALTER TABLE
        Change the type of a constrained column
        Change the type of an unconstrained column
        Change the length of a constrained column
        Change the length of an unconstrained column
  - Synchronize DDL operations from the Oracle compatible mode of OceanBase Database to an Oracle database
  - Synchronize DDL operations from a DB2 LUW database to an Oracle-compatible tenant of OceanBase Database
  - Synchronize DDL operations from the Oracle compatible mode of OceanBase Database to a DB2 LUW database
  - Synchronize DDL operations from a DB2 LUW database to a MySQL-compatible tenant of OceanBase Database
  - Synchronize DDL operations from the MySQL compatible mode of OceanBase Database to a DB2 LUW database
  - Synchronize DDL operations between MySQL-compatible tenants of OceanBase Database
  - DDL synchronization between Oracle-compatible tenants of OceanBase Database
  - DDL operations for synchronizing data from a PostgreSQL database to the MySQL compatible mode of OceanBase Database
  - DDL synchronization from PostgreSQL to OceanBase Database in Oracle compatible mode
Data synchronization
- Overview
- Synchronize data from OceanBase Database to a Kafka instance
- Synchronize data from OceanBase Database to a RocketMQ instance
- Synchronize data from OceanBase Database to a DataHub instance
- Synchronize data from an ODP logical table to a physical table in a MySQL-compatible tenant of OceanBase Database
- Synchronize data from an ODP logical table to a DataHub instance
- Synchronize data from an IDB logical table to a MySQL-compatible tenant of OceanBase Database
- Synchronize data from an IDB logical table to a DataHub instance
- Synchronize data from a MySQL database to a DataHub instance
- Synchronize data from an Oracle database to a DataHub instance
- Manage data synchronization tasks
  - View details of a data synchronization task
  - Change the name of a data synchronization task
  - View and modify synchronization objects
  - Use tags to Manage data synchronization tasks
  - Perform batch operations on data synchronization tasks
  - Download and import the settings of synchronization objects
  - View and modify the parameter configurations of a data synchronization task
  - Start and pause a data synchronization task
  - End and delete a data synchronization task
Data validation
- Overview
- Create a data validation task
- Manage data validation tasks
  - View details of a data validation task
  - Change the name of a data validation task
  - View and modify validation objects
  - View and modify validation parameters
  - Manage data validation tasks by using tags
  - Import validation objects
  - Start, stop, and resume a data validation task
  - Clone a data validation task
  - Delete a data validation task
Create and manage data sources
- Create data sources
  - Create an OceanBase data source
    - Create a physical OceanBase data source
    - Create an ODP data source
    - Create an IDB data source
    - Create a public cloud OceanBase data source
    - Create a standalone OceanBase data source
  - Create a MySQL data source
  - Create an Oracle data source
  - Create a TiDB data source
  - Create a Kafka data source
  - Create a RocketMQ data source
  - Create a DataHub data source
  - Create a DB2 LUW data source
  - Create a PostgreSQL data source
  - Create a PolarDB-X 1.0 data source
- Manage data sources
  - View data source information
  - Copy a data source
  - Edit a data source
  - Delete a data source
- Create a database user
- User privileges
- Enable binlogs for the MySQL database
- Minimum privileges required when an Oracle database serves as the source
OPS & Monitoring
- O&M overview
- Go to the overview page
- Server
  - View server information
  - Update the quota
  - View server logs
  - Manage resource groups
- Components
  - Store
    - Add a Store component
    - View details of a Store component
    - Update the configurations of a Store component
    - Start and pause a Store component
    - Delete a Store component
  - Incr-Sync
    - View details of an Incr-Sync component
    - Start and pause an Incr-Sync component
    - Migrate an Incr-Sync component
    - Update the configurations of an Incr-Sync component
    - Batch O&M
    - Delete an Incr-Sync component
  - Full-Import
    - View details of a Full-Import component
    - Pause a Full-Import component
    - Rerun and resume a Full-Import component
    - Update the configurations of a Full-Import component
    - Delete a Full-Import component
  - Full-Verification
    - View details of a Full-Verification component
    - Pause a Full-Verification component
    - Rerun and resume a Full-Verification component
    - Update the configurations of a Full-Verification component
  - Incr-Verification
    - View details of the Incr-Verification component
    - Pause an Incr-Verification component
    - Rerun and resume an Incr-Verification component
    - Update an Incr-Verification component
  - Row-Verification
    - View details of a Row-Verification component
- O&M Task
  - View O&M tasks
  - Skip a task or subtask
  - Retry a task or subtask
- Parameter Template
  - Overview
  - Task Template
    - Create a task template
    - View and edit task templates
    - Copy and export a task template
    - Delete a task template
  - Component Template
    - Create a component template
    - View and edit component templates
    - Copy and export a component template
    - Delete a component template
  - Component parameters
    - Store component parameters
    - Incr-Sync component parameters
    - Full-Import component parameters
    - Full-Verification component parameters
    - Incr-Verification component parameters
    - Parameters of the Row-Verification component
    - CM component parameters
    - Supervisor component parameters
System management
- Permission Management
  - Overview
  - Manage users
  - Manage departments
- Alert center
  - View task alerts
  - View system alerts
  - Manage alert settings
- Associate with OCP
- System parameters
  - Modify system parameters
  - Modify HA configurations
  - oblogproxy parameters
- Manage access keys
- Operation audit
Troubleshooting Guide
- Manage OMS services
- OMS logs
- Component O&M
  - O&M operations for the Supervisor component
  - CLI-based O&M for the Connector component
  - O&M operations for the Store component
- Component tuning
  - Incr-Sync/Full-Import tuning
  - Oracle store tuning
- Set throttling
- Store performance diagnostics
Reference Guide
- Features
  - Configure DDL/DML synchronization
  - DDL synchronization scope
  - Rename databases and tables
  - Use SQL conditions to filter data
  - Set the incremental synchronization start timestamp
  - Configure matching rules for migration or synchronization objects
  - Configure matching rules for validation objects
  - Wildcard patterns supported for matching rules
  - Hidden column mechanisms
  - Instructions on schema migration
  - Create and update a heartbeat table
  - Change a topic
  - Column filtering
  - Data formats
- API Reference
  - Overview
  - CreateProject
  - StartProject
  - StopProject
  - ResumeProject
  - ReleaseProject
  - DeleteProject
  - ListProjects
  - DescribeProject
  - DescribeProjectSteps
  - DescribeProjectStepMetric
  - DescribeProjectProgress
  - DescribeProjectComponents
  - ListProjectFullVerifyResult
  - StartProjectsByLabel
  - StopProjectsByLabel
  - CreateMysqlDataSource
  - CreateOceanBaseDataSource
  - CreateOceanBaseODPDataSource
  - CreatePolarDBDataSource
  - ListDataSource
  - CreateLabel
  - ListAllLabels
  - DeleteDataSource
  - CreateProjectModifyRecords
  - ListProjectModifyRecords
  - StopProjectModifyRecords
  - RetryProjectModifyRecords
  - CancelProjectModifyRecord
  - SubmitPreCheck
  - GetPreCheckResult
  - UpdateProjectConfig
  - Download schema conversion information
  - DownloadConflictData
  - ListConflictData
  - ResetIncrStartTimestamp
  - AdvanceProject
  - DescribeRegions
- Alert Reference
  - oms_host_down
  - oms_host_down_migrate_resource
  - oms_host_threshold
  - oms_migration_failed
  - oms_migration_delay
  - oms_sync_failed
  - oms_sync_status_inconsistent
  - oms_sync_delay
- SSO
  - Integrate the OIDC protocol to OMS to implement SSO
  - Integrate the SAML 2.0 protocol to OMS to implement SSO
  - Access Microsoft Entra ID using OMS SAML 2.0
- OMS error codes
- SQL statements for querying table objects
- Create a trigger
- Change the log level for a PostgreSQL instance
- Online DDL tools
- Supplemental logging in Oracle databases
Upgrade Guide
- Overview
- Upgrade OMS in single-node deployment mode
- Upgrade OMS in multi-node deployment mode
- FAQ
FAQ
- General O&M
  - How do I modify the resource quotas of an OMS container?
  - How do I troubleshoot the OMS server down issue?
  - Deploy InfluxDB for OMS
  - Increase the disk space of the OMS host
- Task diagnostics
  - How do I troubleshoot common problems with Oracle Store?
  - How do I perform performance tuning for Oracle Store?
  - What do I do when Oracle Store reports an error at the isUpdatePK stack?
  - What do I do when a store does not have data of the timestamp requested by the downstream?
  - What do I do when OceanBase Store failed to access an OceanBase cluster through RPC?
  - How do I use LogMiner to pull data from an Oracle database?
- OPS & monitoring
  - What are the alert rules?
- Data synchronization
  - FAQ about synchronization to a message queue
    - What are the strategies for ensuring the message order in incremental data synchronization to Kafka
- Data migration
  - User privileges
    - What privileges do I need to grant to a user during data migration to or from an Oracle database?
  - Full migration
    - How do I query the ID of a checker?
    - How do I query log files of the Checker component of OMS?
    - How do I query the verification result files of the Checker component of OMS?
    - What do I do if the target table does not exist?
    - What can I do when the full migration failed due to LOB fields?
    - What do I do if garbled characters cannot be written into OceanBase Database V3.1.2?
  - Incremental synchronization
    - How do I skip DDL statements?
    - How do I migrate an Oracle database object whose name exceeds 30 bytes in length?
    - How do I update whitelists and blacklists?
    - What are the application scope and limits of ETL?
- Installation and deployment
  - How do I upgrade Store?
Release Note
- Release Note
  - Version number rules
  - V4.3
    - OMS V4.3.1
    - OMS V4.3.0
  - V4.2
    - OMS V4.2.5
    - OMS V4.2.4
    - OMS V4.2.3
    - OMS V4.2.2
    - OMS V4.2.1
    - OMS V4.2.0
  - V4.1
    - OMS V4.1.0
  - V4.0
    - OMS V4.0.2
    - OMS V4.0.1
  - V3.4
    - OMS V3.4.0
  - V3.3
    - OMS V3.3.1
    - OMS V3.3.0
  - V3.2
    - OMS V3.2.2
    - OMS V3.2.1
  - V3.1
    - OMS V3.1.0
  - V2.1
    - OMS V2.1.2
    - OMS V2.1.0

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RENAME OBJECT

Last Updated：2025-10-09 03:34:24 Updated

This article introduces the supported conversion scope for renaming RENAME OBJECT DDL when migrating data from an Oracle database to OceanBase database in the Oracle compatible mode.