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Terrence Enger wrote:
...
Did you really receive that recommendation in freeform? I took Barbara's second comment in <http://forums.systeminetwork.com/isnetforums/showthread.php?t=52004>
to mean that the difference does not matter in ILE/RPG.


I think you mean was my third comment in that thread (the one starting with "I don't know if it was ever correct".

I didn't mean to imply that the difference doesn't matter; I'm not expert enough to say that with any authority. I think there are some cases where SETLL beats CHAIN and vice versa; things I don't recall clearly or understand, related to the sparseness of the keys in the file.

What's different between ILE RPG and OPM RPG is that for record-not-found, CHAIN doesn't have the performance penalty that OPM RPG has. So in the cases where the nature of the file might make CHAIN and SETLL perform significanly differently, the difference would be ... um ... different between ILE RPG and OPM RPG.


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