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" <[EMAIL PROTECTED]> 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 > [EMAIL PROTECTED] Quad/Tech Inc, > Sussex, WI USA > > > > -----Original Message----- > > From: Gurelei [mailto:[EMAIL PROTECTED] > > 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: [EMAIL PROTECTED] > > 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: [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). __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Gurelei INET: [EMAIL PROTECTED] 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: [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).
