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I'm not sure if you can run the following test, but does visual explain
have different results for the following?
Select aa,bb,cc,dd from parts, secmast
where secuser= ?
and (secmast.loc = parts.loc or secmast.loc = ?)
and (secmast.type = parts.type or secmast.type = ?)
and parts.desc like ?
-Tom Stieger
IT Manager
California Fine Wire
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
franz400@xxxxxxxxxxxx
Sent: Monday, February 20, 2012 1:46 PM
To: midrange-l@xxxxxxxxxxxx
Subject: sql joins with or logic - performance
SQL requests from .net app where joins have "or" logic
Select aa,bb,cc,dd from parts inner join secmast on secuser= ?
and (secmast.loc = parts.loc or secmast.loc = ?) and (secmast.type =
parts.type or secmast.type = ?) where parts.desc like ?
Visual Explain is showing over 1,000,000 ms in Final Select
v6r1
Is "or" logic in a join an issue? Their app allowing user to select a
single loc or "all" locs, same for type.
Jim Franz
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