Help is available on the following types of error messages:

    o  RDMS facility error messages-Specific to Oracle Rdb. Select the
       RDMS_ERRORS help topic for help on these messages.

    o  RDO facility error messages-Seen when you are running the
       interactive RDO utility. Select the RDMS_ERRORS help topic for
       help on these messages.

    o  COSI facility error messages-Common Operating System Interface
       (COSI) error messages. Select the COSI_ERRORS help topic for
       help on these messages.

    You can also print or type the SYS$HELP:RDB_MSG.DOC file for
    information on messages returned by the RDB facility. The
    RDB facility is common code shared by all Database Standard
    Relational Interface (DSRI) compliant database systems.

    The SYS$HELP:RDB_MSG.DOC file contains the RDB facility
    messages from the most recently installed version of a
    database product system or cluster. (Installation of a
    new version of Oracle Rdb upgrades the RDB_MSG.DOC file
    whenever the RDB message image, RDBMSGS.EXE, includes new
    or revised error messages.)