are all your tables/indexes analyzed? if the statistics are not current then the plans chosen by the CBO can be very bad.
babu ----- Original Message ----- To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Friday, January 04, 2002 12:40 AM > Dear All, > I have been entrusted to tune a web based application. This product is at development stage. I generated the trace file and found out the indexes on the table. So I specified hints in all the queries and tested the application. There was a remarkable increase in performance. Can any one tell me why we have to specify the hints in the queries, when the tables are having index already. > > Platform: WinNT Oracle 8.1.6. Application is developed in JSP and Web server is iPlanet Enterprise Edition. > > TIA > > Regards > Venkat > > > -- > Click here for your very own create-a-date adventure from MatchMaker > Go to http://ecard.matchmaker.com/dating.html > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: C.S.Venkata Subramanian > 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: Babu Nagarajan 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).
