Full_Description

   A /DATA qualifier must identify every field in the records you
   are directing to the output file. Specify the data fields in the
   order you want them to appear in the output record. By default,
   the record format for an output file is the same as that for
   the input file. If you want to eliminate or reorder fields from
   the output record, you can use the /DATA qualifier, causing only
   those fields identified by the /DATA qualifier to be directed to
   the output file.

   You can conditionally change the contents of a field in the
   output records by first specifying a condition name and then
   setting up a test for what meets the condition in a /CONDITION
   qualifier. You then 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")