IMO before offering any advice I would need for Dave to clarify some
ambiguity in his question.
Do you want to /replace/ the matching-record logic program with a SQL file
comparison, or do you want to only replace the OPNQRYF step in the job with
If you are trying to go pure SQL to join and compare the files, having
duplicate keys in the files will be a problem.
Use a Common Table Expression to order file 1 in the preferred sequence,
then join to the CTE, returning the matched rows as one long record that
is mapped into two data structures then make comparisons between the
two data structures ?
I want to compare two files : the results of a test against the results of
the last test. We have an old home utility that generates an rpg matching
record program. When there are key fields in both ascending and descending
order, we use opnqryf in a clp that calls the rpg to temporarily reorganize
the files so that matching will work.
How could this be done in sql?
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