From cjordan@smcwv.com Tue, 29 Jan 2002 10:28:14 -0800 From: "Casey Jordan" Date: Tue, 29 Jan 2002 10:28:14 -0800 Subject: Re: Database Performance Question Message-ID: MIME-Version: 1.0 Content-Type: text/plain You may want to look at using materialized views. They are easy to setup and can be refreshed manualy or automaticaly. Thanks, cj SRAJENDRAN@nlf s.com To: Multiple recipients of list ORACLE-L Sent by: cc: root@fatcity.c Subject: Database Performance Question om 01/29/2002 10:25 AM Please respond to ORACLE-L 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. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: SRAJENDRAN@nlfs.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Casey Jorda INET: cjordan@smcwv.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).