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RE: Analyzing a Trigger for Performance

From: Gogala, Mladen <MGogala_at_oxhp.com>
Date: Wed, 21 Aug 2002 13:55:11 -0800
Message-ID: <F001.004BBEE4.20020821135511@fatcity.com>


Make a dedicated server connection, execute the following statement
 alter session set events='10046 trace name context forever, level 10'; and ship the resulting trace file to Cary. More about the details on http://www.hotsos.com

> -----Original Message-----
> From: johanna.doran_at_sungard.com [mailto:johanna.doran_at_sungard.com]
> Sent: Wednesday, August 21, 2002 5:01 PM
> To: Multiple recipients of list ORACLE-L
> Subject: Analyzing a Trigger for Performance
>
>
> Hi,
>
> I had noticed that one of our triggers is performing very
> badly. I had disabled the trigger to test replication and
> there was a issue with the trigger. When the developer
> changed the trigger and enabled it, replication slowed down
> to one record per second (other tables are being updated,
> instered, and deleted from).
>
> I analyzed the plans for all sql statements generated
> in the trigger itself and they are all using the correct
> indices etc. There are no full table scans etc. We have
> simliar trigger on our other replicated tables that are not
> seeing THIS bad performance.
>
> Any one have any suggestions/links for putting this
> trigger through the paces to determine the bottleneck?
>
> Thanks,
>
> Hannah
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author:
> INET: johanna.doran_at_sungard.com
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Gogala, Mladen
  INET: MGogala_at_oxhp.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
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Received on Wed Aug 21 2002 - 16:55:11 CDT

Original text of this message

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