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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

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Blog

Live Demos

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Documentation

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OceanBase Migration Assessment

V4.2.3Enterprise 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

Download PDF

Overview Application scenarios System architecture Product form Install OMA 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 Overview Assess an Oracle database Assess a MySQL database Assess a TiDB database Assess a PostgreSQL database Assess a DB2 LUW database 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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iconOceanBase Migration Assessment
V 4.2.3Enterprise Edition
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Install OMA

Last Updated:2026-04-14 07:41:18  Updated
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Basic configuration requirements
Procedure

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This topic describes the basic configuration requirements for installing OceanBase Migration Assessment (OMA) and how to deploy and use it.

Basic configuration requirements

  • The server where OMA is to be installed must have at least eight logical CPU cores and 16 GB of memory.

    If many objects are to be assessed, we recommend that you increase the resource configuration and disk space on the server.

  • At least 2 GB of disk space is required.

    Note

    If a large number of objects are to be assessed, ensure the disk space is sufficient for the assessment reports.

  • Java 1.8 must be installed in the system.

  • We recommend that you run this program on Linux or macOS.

  • To connect OMA to a database, make sure that the server where OMA is installed can access the source database.

Procedure

  • You can directly decompress the downloaded package without installing a CLI tool.

  • Download the OMA package, decompress it, and go to the directory where OMA is located.

    tar zxvf oma-x.x.x.tar.gz
    cd oma-x.x.x
    
  • Run the corresponding script and specify the parameters required for assessment. Then, you can use OMA to perform an assessment. For more information about the parameters, see Product form.

    • In Microsoft Windows, run start.bat.

    • In Linux, run bin/start.sh.

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