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RE: Poor performance after moving Extempore database from 7.3.4 t

From: DENNIS WILLIAMS <DWILLIAMS_at_lifetouch.com>
Date: Mon, 11 Aug 2003 12:19:26 -0800
Message-ID: <F001.005CA20F.20030811121926@fatcity.com>


Ron - I don't know anything about your application, but my approach would be to try and capture some common SQL statements and compare the explain plans with 7.3.4 and 8.1.7. It is possible your SQL isn't being executed the same way. If necessary, you can pull some SQL out of v$sql and/or v$sqltext.

Dennis Williams
DBA, 80%OCP, 100% DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com

-----Original Message-----
Sent: Monday, August 11, 2003 2:14 PM
To: Multiple recipients of list ORACLE-L 8.1.7

We recently upgraded an application (Extempore) database from Oracle 7.3.4 to 8.1.7. The clients say the test database, still on Oracle 7.3.4 is much faster than the production database, now on 8.1.7. The server is newer and faster on the production database. The Oracle init parameters are pretty much identical.

When I access the database through SQL*PLUS or TOAD, the response is instantaneous. The app uses an ODBC connection which is also 8.1.7. I have tried attaching the tables in MS Access through ODBC. This too is instantaneous.

Any ideas?

Ron Smith
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Please see the official ORACLE-L FAQ: http://www.orafaq.net
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Author: Smith, Ron L.
  INET: rlsmith_at_kmg.com

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Author: DENNIS WILLIAMS
  INET: DWILLIAMS_at_LIFETOUCH.COM
Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
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