Steve and Stepane, Take a look at Tim Gorman's 'Search for Intelligent life in the CBO' paper in the library section at http://www.evdbt.com', as well as some of my insights into the CBO (and the traps/pitfalls along the path from RBO to CBO) at 'http://www.geocities.com/john_sharmila/links.htm' (click on the paper link).
John Kanagaraj Oracle Applications DBA DBSoft Inc (W): 408-970-7002 What would you see if you were allowed to look back at your life at the end of your journey in this earth? ** The opinions and statements above are entirely my own and not those of my employer or clients ** > -----Original Message----- > From: paquette stephane [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, November 19, 2002 1:50 PM > To: Multiple recipients of list ORACLE-L > Subject: Re: converting to the cost based optimizer > > > We will be in the same process soon. > We'll have to consolidate over 100 instances to > something between 40-60 instances and switch from RBO > to CBO. > > Any tips are welcome. > > > --- Steve McClure <[EMAIL PROTECTED]> a �crit : > > I am just starting to look at converting to the cost > > based optimizer, and am > > hoping a few of you can share insights from having > > done so in the past. Our > > application is an oltp system developed on 7.3.4. > > We made liberal use of > > +0 and other RBO "hints", and I am wondering if > > these are going to cause us > > troubles when switching to CBO. > > > > We have been on 8i since April of this year, and I > > am just now starting to > > gather information on the inner workings of the CBO. > > I know it is where I > > want to be, I am just looking to see how > > painful/painless the transition > > will be. > > > > Steve McClure > > > > -- > > Please see the official ORACLE-L FAQ: > > http://www.orafaq.com > > -- > > Author: Steve McClure > > 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). > > ===== > St�phane Paquette > DBA Oracle et DB2, consultant entrep�t de donn�es > Oracle and DB2 DBA, datawarehouse consultant > [EMAIL PROTECTED] > > __________________________________________________________ > L�che-vitrine ou l�che-�cran ? > magasinage.yahoo.ca > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: =?iso-8859-1?q?paquette=20stephane?= > 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). > -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: John Kanagaraj 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).
