Inserting, deleting, and altering records
You can write your own routines to delete, insert, or alter records. You must associate these routines with the E15, E32, and E35 user exits.
Note: DFSORT also provides INCLUDE and OMIT statements,
and OUTFIL INCLUDE and OMIT parameters that automatically include
or delete records based on your field criteria. For more information
on these control statements, refer to Using DFSORT program control statements.