Re: system performance -- RPG400-L

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If you are doing any SQL or Query, I believe the sql engines will not use an index if it has select/omit. That can cause the sql engine to have to build it's own index to use.
Jim Franz

----- Original Message ----- From: "Lois Krake" <lkrake@xxxxxxxx>
To: "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
Sent: Saturday, August 29, 2009 9:36 AM
Subject: system performance

Hi:

I am trying to do research on the impact on system performance using logicals with select-omit criteria(we do not use the DYNSLT keyword) vs. using if statements in the rpg code. I don't know if there is a performance difference but our system is slowing down & I am trying to find reasons. I believe they are the direct result of poor programming techniques & I am trying to identify them.

Lois
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