RE: cost
- From: "Jesse, Rich" <Rich.Jesse@xxxxxxxxxxxxxxxxx>
- To: "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
- Date: Mon, 5 Apr 2004 09:59:49 -0500
But beware that for 8.1.7.4, histograms are ignored if you're using bind
variables, either explicitly or via the infamous CURSOR_SHARING=FORCE
init.ora parameter.
Rich
Rich Jesse System/Database Administrator
rich.jesse@xxxxxxxxxxxxxxxxx QuadTech, Sussex, WI USA
[terribly snipped]
> From: Bobak, Mark [mailto:Mark.Bobak@xxxxxxxxxxxxxxx]
>
> WHY the CBO
> thinks a particular plan is lower cost than another and then give the
> CBO better information so that it can more accurately estimate plan
> costs.
>
> Ways to do this may include:
> - add histograms for some skewed columns
----------------------------------------------------------------
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
-----------------------------------------------------------------
Other related posts:
