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Re: Re: which should be faster

From: <rgaffuri_at_cox.net>
Date: Mon, 05 May 2003 09:01:40 -0800
Message-ID: <F001.0058FB2B.20030505090140@fatcity.com>


jonathan lewis posted over the weekend that it does. He said it does in 9i unless you have a certain parameter set. Cant remember what that was off-hand.

>
> From: "AK" <oramagic_at_hotmail.com>
> Date: 2003/05/05 Mon AM 11:46:41 EDT
> To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> Subject: Re: which should be faster
>
> does predicate order makes diff in cob also ?
> oracle 8.1.7
>
> -ak
>
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> Sent: Saturday, May 03, 2003 8:11 AM
>
>
> >
> > Did you also test with index compression in place
> > on the organization column ?
> >
> > If your tests were:
> > organization = 'XXX'
> > and inv_date between ....
> >
> > did you also test
> > inv_date between ....
> > and organization = 'XXX'
> >
> > Under Oracle 8, the predicate order
> > can make a difference - although in
> > this case I don't think you would see
> > much difference, as neither predicate
> > is an eliminator at the filter level.
> >
> >
> > Regards
> >
> > Jonathan Lewis
> > http://www.jlcomp.demon.co.uk
> >
> > The educated person is not the person
> > who can answer the questions, but the
> > person who can question the answers -- T. Schick Jr
> >
> >
> > One-day tutorials:
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> >
> > The Co-operative Oracle Users' FAQ
> > http://www.jlcomp.demon.co.uk/faq/ind_faq.html
> >
> >
> > ----- Original Message -----
> > To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> > Sent: 02 May 2003 22:31
> >
> >
> > > Actually I found a note on tom kyte's book(expert one on one) that
> > it
> > > shouldn't matter weather u index c1,c2 or c2,c1 . Although my
> > scenerio is
> > > not exact . But its kinda similer . I did a little testing and found
> > that
> > > just invdate is faster compare to org , indate .
> > >
> > > Thanks ,
> > > -ak
> > >
> >
> >
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.net
> > --
> > Author: Jonathan Lewis
> > INET: jonathan_at_jlcomp.demon.co.uk
> >
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: AK
> INET: oramagic_at_hotmail.com
>
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-- 
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-- 
Author: <rgaffuri_at_cox.net
  INET: rgaffuri_at_cox.net

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Received on Mon May 05 2003 - 12:01:40 CDT

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