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  3. March 2024

Re: Join-logical (accessible via an RPGLE CHAIN statement) keyed across two different PFs -- any way to do this?

My situation from my original question ("The story you are about to see is true; only the names have been changed, to protect the innocent") is, for reference:

Got a couple of PFs. Call them FOO and BAR.

FOO is uniquely keyed on fields HAM and EGGS, and contains additional field SPAM (which is the unique key of logical FOO_1

BAR has a field, FROTZ, the first key on logical BAR_1, that ties every record in BAR to a record in FOO. And it also has a field, BLORB, which is a date.

And I'm trying to check the latest BLORB for any given HAM. Not just for one HAM, but for all possible HAMs.

Turns out (to my surprise) that just going through all the FOO records for a given HAM value, and checking a logical of BAR by FROTZ and descending BLORB, does the job, at a more than reasonable speed, even repeating it for all possible HAMs.

--
JHHL

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