Commit
    Nocommit

    Makes the database conversion permanent. When you specify the
    Commit qualifier, the database is converted to an Oracle Rdb
    release 7.2 database and cannot be returned to the previous
    version. The default is Commit.

    When you specify the Nocommit qualifier, you can convert the
    database to Oracle Rdb release 7.2 and roll it back to the
    previous version at a later time.

    Using the Nocommit qualifier is helpful when you want to test
    your applications against a new version of Oracle Rdb. In the
    event that you find problems, you can roll back to the previous
    version. Once you feel confident that your applications work well
    with the new version, you should commit the converted database,
    otherwise unnecessary space is taken up in the database to store
    the obsolete alternate version of the metadata.