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Home -> Community -> Mailing Lists -> Oracle-L -> RE: optimizer parameters in Oracle 9.2
Rich,
thanks a lot. I just finished reading Tim's paper and it is truly enjoyable reading. I'm going to test his advices in a few moments.
Gene
--- "Jesse, Rich" <Rich.Jesse_at_qtiworld.com> wrote:
> Paging Mr. Gorman....Mr. Tim Gorman...
>
> I had wonderful luck with Tim's paper "The Search
> for Intelligent Life in
> the Cost-Based Optimizer" from:
> http://www.evdbt.com/papers.htm
>
> Enjoy! (And thanks again, Tim!)
>
> Rich
>
> Rich Jesse System/Database
> Administrator
> rjesse_at_qtiworld.com Quad/Tech Inc,
> Sussex, WI USA
>
>
> > -----Original Message-----
> > From: Gurelei [mailto:gurelei_at_yahoo.com]
> > Sent: Wednesday, July 30, 2003 9:04 AM
> > To: Multiple recipients of list ORACLE-L
> > Subject: optimizer parameters in Oracle 9.2
> >
> >
> > Hi all:
> >
> > I have been reading on the optimizer_ parameters
> for
> > Oracle 9i - optimizer_max_permutation,
> > optimizer_index_caching and
> optimizer_index_cost_adj.
> > I have also been playing whith them and I can see
> that
> > they affect the explain plans for some queries
> quite
> > dramatically. Is there any guidelines for what
> they
> > should be set to for optimum performance (some
> kind of
> > range and may be relationship between the values)
> or
> > is this mostly a trial and error kind of thing? I
> have
> > seen a few discussion on the Oracle Metalink, but
> > mostly they are very specific - try this value or
> try
> > that value. Does anyone have a link to a document
> with
> > something more systematic than that?
> >
> >
> > thank you
> >
> > Gene
> --
> Please see the official ORACLE-L FAQ:
> http://www.orafaq.net
> --
> Author: Jesse, Rich
> INET: Rich.Jesse_at_qtiworld.com
>
> Fat City Network Services -- 858-538-5051
> http://www.fatcity.com
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-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Gurelei INET: gurelei_at_yahoo.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_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).Received on Wed Jul 30 2003 - 10:24:31 CDT
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