I agree. Following the procedure listed below reminds me of how difficult it would be to take the lug bolts off a car wheel with the wheel spinning at 1000rpm. Cary Millsap Hotsos Enterprises, Ltd. http://www.hotsos.com * Nullius in verba * Upcoming events: - Performance Diagnosis 101: 3/23 Park City, 4/6 Seattle, 5/7 Dallas - SQL Optimization 101: 3/29 Dallas, 4/19 Denver, 5/3 Boston, 5/24 San Diego - Hotsos Symposium 2005: March 6-10 Dallas - Visit www.hotsos.com for schedule details... -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Jared Still Sent: Thursday, March 25, 2004 9:06 AM To: Oracle-L Freelists Subject: Re: how to set optimizer_index_cost_adj and cache parameters? IIRC, the best option is to leave them alone. Jared On Thu, 2004-03-25 at 05:23, Juan Cachito Reyes Pacheco wrote: > Hi, > > After reading a lot about this, this is my conclusion, do you agree? > > the conclusion seems to be gather system statics from every distinct process > or group of process, and set manually this values in every one of them. > > If this process is by time, for example night and day, you can use alter > system parameter, > if this is only for ap articular process you will have to set alter session. > > And set the value. > This seems to be a hard work. > > regards, > > > ---------------------------------------------------------------- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > ---------------------------------------------------------------- > To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx > put 'unsubscribe' in the subject line. > -- > Archives are at //www.freelists.org/archives/oracle-l/ > FAQ is at //www.freelists.org/help/fom-serve/cache/1.html > ----------------------------------------------------------------- ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------