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OceanBase Migration Assessment

V4.2.5Enterprise Edition
  • Product Introduction
    • Overview
    • Application scenarios
    • System architecture
    • Product form
  • Install OMA
  • Compatibility assessment
    • Overview
    • Assess the compatibility with objects
    • Assess the compatibility with SQL statements
    • Assess the compatibility with business code
    • Export SQL statements from an OceanBase database
    • Database assessment
      • Overview
      • Assess an Oracle database
      • Assess a MySQL database
      • Assess a TiDB database
      • Assess a PostgreSQL database
      • Assess a DB2 LUW database
  • Performance assessment
    • Standalone edition
      • Overview
      • Assess the performance differences between an Oracle database and an OceanBase database
      • Assess the performance differences between a MySQL database and an OceanBase database
      • Assess the performance differences between different versions of OceanBase Database

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Overview

Last Updated:2026-09-04 08:16:35

Basic information
Supported database types and versions
Supported source databases
Supported target databases

OceanBase Migration Assessment (OMA) provides precise compatibility assessment for data migration. This topic describes the types and versions of databases that support compatibility assessment.

Basic information

OMA assesses the compatibility with converting instances of Oracle, MySQL, PostgreSQL, TiDB, DB2 LUW, RDS for MySQL, PolarDB for MySQL, PolarDB for Oracle, DRDS, SQL Server, openGauss, and OceanBase Database (including MySQL and Oracle compatible modes) to OceanBase Database. It also provides database profile analysis and automatic object conversion solutions.

Supported database types and versions

The following table describes the database types and versions that support compatibility assessment. If the version you are using is not listed, use the closest version. For example, if you have deployed OceanBase Database V4.3.5, you can specify OceanBase Database V4.2.2 as the target version in the assessment command. OMA will promptly match the latest OceanBase Database version.

Supported source databases

Database type
Database version
RDS for MySQL All versions
DRDS All versions
TDSQL for Cloud MySQL All versions
MariaDB All versions
MySQL V5.6, V5.7, and V8.0
TiDB V3.0, V4.0, and V5.0
Oracle 11g, 12c, 18c, and 19c

Notice

OMA can replay only the workload capture files of Oracle Database 11g, 12c, 18c, and 19c.

PostgreSQL V9, V10, V11, V12, V13, and V14
openGauss All versions
DB2 LUW V10.1.0, V10.5.0, V11.1, and V11.5
SQL Server All versions
PolarDB for MySQL All versions
PolarDB for Oracle All versions
MySQL compatible mode of OceanBase Database V2.2.0, V3.2.2, V3.2.3, V3.2.4, V4.0.0, and V4.1.0
Oracle compatible mode of OceanBase Database V2.2.5, V2.2.7, V3.1.2, V3.2.2, V3.2.3, V3.2.4, V4.0.0, V4.1.0, V4.2.0, V4.2.1, V4.2.2, V4.2.5, and V4.3.5

Supported target databases

Database type
Database version
MySQL compatible mode of OceanBase Database V2.2.0, V3.2.2, V3.2.3, V3.2.4, V4.0.0, V4.1.0, V4.2.0, V4.2.1, V4.2.2, V4.2.5, and V4.3.5
Oracle compatible mode of OceanBase Database V2.2.5, V2.2.7, V3.1.2, V3.2.2, V3.2.3, V3.2.4, V4.0.0, V4.1.0, V4.2.0, V4.2.1, V4.2.2, V4.2.5, and V4.3.5

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Basic information
Supported database types and versions
Supported source databases
Supported target databases