SQL OR condition ????

From: Pillai, Rajesh <Rajesh.Pillai_at_nordstrom.com>
Date: Wed, 21 May 2003 16:01:53 -0800
Message-ID: <F001.0059F4B5.20030521160153@fatcity.com>

Hi All,

   Please help me out with this puzzle -

An OR condition in a SQL query WHERE clause is always executed from left to right. True or False?

E.g. If I have (a = b) OR ((c=d) AND (e=f) AND (g=h) AND (i=k)) then first (a=b) will be checked (always) and if it returns false then only it will go to the right side of the OR condition.

AND If I have ((c=d) AND (e=f) AND (g=h) AND (i=k)) OR (a = b) then first ((c=d) AND (e=f) AND (g=h) AND (i=k)) will be checked (always) and if it returns false then only it will go to the right side of OR condition.

TIA,
Rajesh
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Please see the official ORACLE-L FAQ: http://www.orafaq.net
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Author: Pillai, Rajesh
  INET: Rajesh.Pillai_at_nordstrom.com

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