Re: SQL TUNE

From: Juan Cachito Reyes Pacheco <jreyes_at_dazasoftware.com>
Date: Tue, 4 May 2004 13:17:09 -0400
Message-ID: <00df01c431fb$c0b27650$2501a8c0@dazasoftware.com>

If you don't show your execution plan or other statistics is very difficult to get an idea of your problem.

Basically upper(sepr) should be indexed as a function index or hopkinsepr as an index.
I think without indexes upper(sepr) implies a small overhead because it have to upper a string, and without indexes both will have to do a full scan.

If you don't know how to get an execution plan my paper could help you
http://www.geocities.com/juancarlosreyesp/101basictunningonOracle9i.pdf

Juan Carlos Reyes Pacheco
OCP
Database 9.2 Standard Edition

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Received on Tue May 04 2004 - 12:21:16 CDT