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Scott Klement wrote:
This is a poor design. If you want the records to always come in FIFO
sequence, then create the file with the FIFO keyword.
1. Having a file in which there can be non-uniquely-keyed records that
have a meaningful sequence within a key value, and no additional field
to allow for a uniquely keyed logical to enforce that sequence, is not
merely poor design; it is ABOMINABLE design.
But AS I SAID IN THE FIRST PLACE, it's NOT MY DESIGN. I DID NOT CREATE
THE FILE, AND IT IS NOT MINE TO RECREATE.
It definitely does NOT re-use deleted records, but I have yet to find a
way to determine whether or not it was originally created with a FIFO
keyword.
2. It is not a file that will have to be dealt with on an ongoing basis;
it is part of a system that is to be decommissioned once its replacement
is live.
The obvious solution is to include a check for RRN sequence in the
program pulling the data out of the file.
--
JHHL
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