DBMS_STATS in 9i consider cpu and io costing too. If you see plan_table in 9i you will have 3 extra columns. May be this is taking is helping you. Thanks and Regards, Satheesh Babu.S Associate Consultant. 080-57593938 Bangalore. India. -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Raphael A. Bauer Sent: Tuesday, July 06, 2004 1:40 PM To: oracle-l@xxxxxxxxxxxxx Subject: analyze table versus DBMS_STATS.GATHER_TABLE_STATS(...) Hi Folks, I got a really interesting topic about 9i. I encountered a big difference in the performance of my sql commands=20 wether I use analyze table (..) or DBMS_STATS.GATHER_TABLE_STATS(...)=20 (both "full" analyzes). DBMS_STATS is in my case about 40secs faster=20 than analyze... The plan of both sql queries stayed the same, only the=20 costs differed a bit. My Oracle Books say that DBMS_STAT and analyze..=20 are qute the same. But that's not reality... A - I forgot - my test schema is only one simple table. Nothing to do=20 with partitions or more complex topics... I don't want to show you my exact tables and queries. They are not so=20 important. More important is: Where are those 40secs hidden - and what=20 is the real difference of DBMS_STATS.GATHER_TABLE_STATS and analyze. Thanks a lot! Raphael ---------------------------------------------------------------- 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 http://www.freelists.org/archives/oracle-l/ FAQ is at http://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 http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------