You have done very nicely so far in tuning those joins... but... More questions to you : 1. Why do you think this is still a database problem? 2. Will partitioning those larger tables help the queries? 3. What have you checked to make sure that the bottleneck is not the web-server? 4. Are these connections persistent or the app connects/disconnects when accessing the database?
Looking for answers to these questions may help you locate other opportunities to improve upon.. - Kirti -----Original Message----- Sent: Tuesday, January 29, 2002 9:25 AM To: Multiple recipients of list 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: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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: Deshpande, Kirti INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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).
