Before you invoke the RDBPRE preprocessor, define the following
    symbol:

    $ RDBPRE :== $RDBPRE

    Invoke the preprocessor and specify a file name and the language.
    The following example shows how to preprocess the file COB_
    SAMPLE.RCO:

    $ RDBPRE
    INPUT FILE> COB_SAMPLE.RCO/COB

    You can use RDBPRE and host language compile qualifiers when you
    precompile a program.