Full_Description

   A specification file can be used to change the relative order of
   a record or to alter the contents of certain fields of a record.
   You must first use a /CONDITION qualifier to define a conditional
   test. Once you define a test using a /CONDITIONAL qualifier, you
   can use that same test with a /KEY or /DATA qualifier to change
   the order of record. You can also use the test with an /OMIT or
   /INCLUDE qualifier to change the contents of a record.

   If you want to change the order of records in the output file,
   first specify a condition name with a /CONDITION qualifier and
   set up a test for what meets that condition. Then, specify the
   relative order with a /KEY qualifier of the form:

   /KEY=(IF condition-name THEN value ELSE value)

   You can use any values to specify the relative order of the
   records.

   The /CONDITION qualifier also permits you to change the contents
   of a field in the output records. First specify a condition name,
   and then set up a test for what meets the condition. Specify the
   contents you want in the field in a /DATA qualifier of the form:

   /DATA=(IF condition-name THEN "new-contents" ELSE "new-contents")