From ktoepke@cms.cendant.com Fri, 23 Mar 2001 10:03:23 -0800 From: "Toepke, Kevin M" Date: Fri, 23 Mar 2001 10:03:23 -0800 Subject: RE: about analyse table.. Message-ID: MIME-Version: 1.0 Content-Type: text/plain Just a FYI about Analyzing... As of Oracle 8i, Oracle recommends using the DBMS_STATS package instead of the ANALYZE command or DBMS_UTILITY procedures. The DBMS_STATS package gathers more statistics than either ANALYZE or the DBMS_UTILITY packages -- potentially resulting in better query performance. In addition, the DBMS_STATS package can parallelize the gathering of statistics, speeding the procss. Do not mix and match your analyze tool usages!!! ANALYZE cannot overwrite or delete some of the values of statistics that were gathered by DBMS_STATS. This could cause some EXTREMELY bad query performance -- trust me, I know. Been there, done that. Kevin Toepke ------------------------- The information in this electronic mail message is Cendant Confidential and may be legally privileged. It is intended solely for the addressee(s). Access to this Internet electronic mail message by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or action taken or omitted to be taken in reliance on it is prohibited and may be unlawful. ------------------------- The sender believes that this E-mail and any attachments were free of any virus, worm, Trojan horse, and/or malicious code when sent. This message and its attachments could have been infected during transmission. By reading the message and opening any attachments, the recipient accepts full responsibility for taking protective and remedial action about viruses and other defects. Cendant Corporation is not liable for any loss or damage arising in any way from this message or its attachments. ------------------------- -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Toepke, Kevin M INET: ktoepke@cms.cendant.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@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).