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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

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Run and manage OceanBase on your infra

TRY OPEN SOURCE

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The free, open-source distributed database

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Open source AI native search database

Customer Stories

Real-world success stories from enterprises across diverse industries.

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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

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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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Assess the compatibility with business code

Last Updated:2026-04-14 07:41:18  Updated
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OceanBase Migration Assessment (OMA) allows you to assess the compatibility with business code and check whether the Oracle Call Interface (OCI) and Pro*C interfaces used in business code are supported. OMA also allows you to assess Java code.

Notice

If you encounter any problems when using this feature, contact OMA Technical Support.

Assessment commands

sh bin/start.sh --name test_11555g \
--mode ANALYZE \    # A fixed value.
--from-type CODE \  # A fixed value.
--evaluate-mode APPLICATION_CODE \ # A fixed value.
--source-file "/Users/Downloads/ccode/" # The directory where the code file is stored.

OMA allows you to assess business code in a folder at the same time. However, to avoid impact on the assessment speed, we recommend that the folder should contain no more than 2,000 files. If the number of files exceeds 2,000, you can assess them in several batches.

Assessment report

After the assessment is completed, a report is generated in the report directory. Check the basic.html file.

The assessment report lists the names of the unsupported files and interfaces, corresponding line numbers, and context of error statements. This HTML file does not contain complete source code. For details, check the error.txt file in the same directory.

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