The record definition files (.rrd) used by the RMU Load, RMU
    Unload, and RMU Analyze commands are used to describe the field
    data types and field ordering for binary and delimited text data
    files. The .rrd files contain a simple language similar to that
    accepted by the CDO interface of the Oracle CDD Repository. The
    RMU Unload command automatically generates a record definition
    file from the table definition in the database.

    This appendix describes the .rrd language which is accepted
    by the RMU Load command. It describes a useful subset of the
    language supported by RMU. Clauses from CDO which RMU accepts but
    ignores are not described.