Re: DBMS_STATS [resend chomped version]
- From: "Jonathan Lewis" <jonathan@xxxxxxxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 18 Jun 2004 23:57:44 +0100
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@xxxxxxx>
To: <oracle-l@xxxxxxxxxxxxx>
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)
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