The syntax of a MATCH request is:
MATCH FILE filename (the OLD file) report request BY field1 [AS sortfield] MORE FILE file3 subrequest RUN . . . FILE filename2 (the NEW file) report request BY field1 [AS sortfield1] . . . [AFTER MATCH HOLD [AS filename] matchtype] MORE FILE file4 subrequest END
where:
Can be any of the following:
OLD
NEW
OLD-NOT-NEW
NEW-NOT-OLD
OLD-AND-NEW
OLD-OR-NEW
OLD-NOR-NEW