RE: query slow in 9i, but not slow in 8i

  • From: "Niall Litchfield" <n-litchfield@xxxxxxxxxxxxxxxxxxxxxxx>
  • To: <oracle-l@xxxxxxxxxxxxx>
  • Date: Tue, 02 Mar 2004 09:08:33 +0000

I wondered about pga_aggregate_target as well? My impression was that if you 
set the new parameters and the old ones the new ones took precedence (ie sas 
etc were ignored). I haven't tested this. 

Niall Litchfield
Oracle DBA
Audit Commission
+44 117 975 7805 

> -----Original Message-----
> From: breitliw@xxxxxxxxxxxxx 
> Sent: 02 March 2004 05:12
> To: breitliw@xxxxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx
> Subject: Re: query slow in 9i, but not slow in 8i
> 
> 
> At 09:44 PM 3/1/2004, you wrote:
> 
> [...]
> 
> >It did not seem to help.
> 
> What did not seem to help? I am questioning if not having 
> workarea_size_policy=auto is overriding the setting of 
> sort_area_size and 
> hash_area_size. If that is so, then your exercise didn't 
> prove or disprove 
> anything.
> 
> >On Mon, 1 Mar 2004, Wolfgang Breitling wrote:
> >
> > > >NAME
> > > >----------------------------------------------------------------
> > > >VALUE
> > > 
> >-------------------------------------------------------------
> ---------- 
> > ---------
> > > >workarea_size_policy
> > > >AUTO
> > > >
> > > >Would this value have some effect on my query?
> > >
> > > It could. What is the pga_aggregate_target? I couldn't 
> quickly find what
> > > overrides what:
> > > Does setting sort_area_size or hash_area_size override
> > > workare_size_policy=auto or vice versa?
> > > Does anyone know? (Rhetorical question - someone'll 
> know). I lean towards
> > > the former.
> > >
> > > Run a 10053 event trace when explaining the sql - both in 
> 8i and in 9i. It
> > > may be too big to post. You can e-mail it to me.
> > >
> 
> Wolfgang Breitling
> Oracle7, 8, 8i, 9i OCP DBA
> Centrex Consulting Corporation
> http://www.centrexcc.com 
> 
> ----------------------------------------------------------------
> 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
> -----------------------------------------------------------------
> 
> 



**********************************************************************
This email contains information intended for
the addressee only.  It may be confidential
and may be the subject of legal and/or
professional privilege.  Any dissemination,
distribution, copyright or use of this
communication without prior permission of
the sender is strictly prohibited.
**********************************************************************

----------------------------------------------------------------
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:

  1. Home
  2. oracle-l
  3. Archive
  4. 03-2004