Re: DBMS_STATS [resend chomped version]

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Fri, 18 Jun 2004 23:57:44 +0100
Message-ID: <004701c45587$ac4893c0$7102a8c0@Primary>

Agree completely - it's a bit of a luxury to have the time, and hard to get the correct information, but every (complex) system needs a table-driven stats gathering process to minimize the work done, and maximise the return on effort.

Regards

Jonathan Lewis

http://www.jlcomp.demon.co.uk

http://www.jlcomp.demon.co.uk/faq/ind_faq.html The Co-operative Oracle Users' FAQ

http://www.jlcomp.demon.co.uk/seminar.html Optimising Oracle Seminar - schedule updated May 1st

Original Message ----- From: "John Kanagaraj" <john.kanagaraj_at_hds.com> To: <oracle-l_at_freelists.org> Sent: Friday, June 18, 2004 11:12 PM Subject: RE: DBMS_STATS [resend chomped version]

All,

> A few columns need histograms - designed to highlight the skewed
> data pattern.

Seems to be the day I use Oracle Apps 11i as a whipping boy! (positive in the case below):

Apps 11i maintains a separate table named FND_HISTOGRAM_COLS which stores column names that are good candidates for Histogram collection. Stats is then collected via an Apps specific FND_STATS package that wraps around DBMS_STATS. The data in FND_HISTOGRAM_COLS is seeded, but there should be no reason you cannot add to this if required. The point is that one could borrow this idea to roll-your-own MY_OWN_GEN_STATS package...

John Kanagaraj <><
DB Soft Inc
Phone: 408-970-7002 (W)

Please see the official ORACLE-L FAQ: http://www.orafaq.com

To unsubscribe send email to: oracle-l-request_at_freelists.org 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
-----------------------------------------------------------------

Received on Fri Jun 18 2004 - 17:54:30 CDT