The following preprocessors are available with Oracle Rdb:

    o  Use SQL$PRE (the SQL precompiler) to preprocess programs
       written in Ada, C, COBOL, FORTRAN, Pascal, and PL/I.

    o  Use SQLMOD (module language) for languages that are not
       supported by the SQL precompiler.

    o  Use RDBPRE to preprocess programs written in BASIC, COBOL, and
       FORTRAN.

    o  Use the RDML preprocessor with C and PASCAL programs
       containing RDML statements.

    You can define symbols to invoke the preprocessor for your host
    language. For example:

          $ SADA     :== $SQL$PRE/ADA
          $ SCC      :== $SQL$PRE/CC
          $ SCOB     :== $SQL$PRE/COBOL
          $ SFOR     :== $SQL$PRE/FORTRAN
          $ SPLI     :== $SQL$PRE/PLI
          $ SPAS     :== $SQL$PRE/PASCAL
          $ RBAS     :== $RDBPRE/BASIC
          $ RCOB     :== $RDBPRE/COBOL
          $ RFOR     :== $RDBPRE/FORTRAN
          $ RDMLC    :== $RDML/C
          $ RDMLPAS  :== $RDML/PASCAL