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Firstly, thanks for the info. It is interesting, and not at all the results I would have predicted excepting the results obtained when you removed the K. What I am still curious about though is: What would have happened if you had used the cycle to process the same records? No READ, no READE, just InputPrimary on the keyed file. Please respond to RPG400-L@midrange.com Sent by: owner-rpg400-l@midrange.com To: RPG400-L@midrange.com cc: Subject: Re: Expensive op codes Vanja Jovic wrote: Both test runs used OVRDBF FILE(ECLL02) SEQONLY(*YES 341) Both test runs read the entire file by key. Program 1 used READE, program 2 used READ and compare. Program 1 elapsed time was 33 minutes 38 seconds. Program 2 elapsed time was 12 minutes 38 seconds. I think I will be using the READ/Compare model versus the READE model whenever possible when I need to read by key. By the way, reading the non keyed physical file with the same OVRDBF only took 1 minute 22 seconds. +--- | This is the RPG/400 Mailing List! | To submit a new message, send your mail to RPG400-L@midrange.com. | To subscribe to this list send email to RPG400-L-SUB@midrange.com. | To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: david@midrange.com +---
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