Re: not using indexes

Hi,

Tables Analyzed recently?
Indexes analyzed recently?
Histograms possibly?

If all else fails hints are there to force a certain execution anyway
(Oracle must have known that the CBO wasn't/isn't perfect) so just use
them.

Jack

"C.S.Venkata Subramanian" <csvenkata_at_lycos.com>@fatcity.com on 04-01-2002 06:40:21

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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

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