HELP is available for the following Oracle Rdb DEFINE statements:

    o  DEFINE COLLATING_SEQUENCE (type DEFINE_COLLATING)

    o  DEFINE CONSTRAINT

    o  DEFINE DATABASE

    o  DEFINE FIELD

    o  DEFINE INDEX

    o  DEFINE PROTECTION

    o  DEFINE RELATION

    o  DEFINE STORAGE MAP

    o  DEFINE TRIGGER

    o  DEFINE VIEW

    However, to get HELP on any of these DEFINE statements at the
    "Topic?" prompt, include an underscore between DEFINE and the
    item on which you want information displayed. For example, to get
    HELP on the DEFINE FIELD statement, type either of the following:

    Topic?  DEFINE_FIELD
    RDO>  HELP DEFINE_FIELD

    To get HELP on the Replication Option DEFINE statements, see
    the entries under the main topic Replication_Option.