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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Database Performance Question
Partitions, Materialized views, bit map indexes.
-----Original Message-----
From: SRAJENDRAN_at_nlfs.com [mailto:SRAJENDRAN_at_nlfs.com]
Sent: Tuesday, January 29, 2002 10:25 AM
To: Multiple recipients of list ORACLE-L
Subject: Database Performance Question
Hello all:
We have an application that is having slow response time against an 8i database, I would like to improve the response time. This is a web based application accessing the database with about 2000 users. Most of the application queries are based on complex joins on 4 big tables with each having over 5 million rows( biggest table has 18 million rows). I have tuned the Package queries for the best explain plan possible, but still do not seem to make dramatic change in the response time. Though, I was able to make significant headway tuning these packages by bringing down response times from 7 minutes to under 3 minutes. But this is not an acceptable response time from a web-application perspective.
I am considering creating data cubes based on the most frequently used join
conditions and pre-populate them on a nightly basis or use triggers to
update the cube simultaneously.
I am hoping that this enhance the response times.
I would greatly appreciate your suggestions or opinions on this idea. If you have an alternative/better way of achiving this please enlighten me.
Thank very much.
Srini Rajendran.
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INET: SRAJENDRAN_at_nlfs.com
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