RE: is there better way than the call a function twice. ---- And the winner is......

From: Duret, Kathy <kduret_at_starkinvestments.com>
Date: Wed, 3 Nov 2004 08:59:50 -0600
Message-ID: <07BA8175B092D611B1DE00B0D049A31501B0BE0C@exchange.ad.starkinvestments.com>

And the virtual magic 8 ball winner goes to Conncer who got me out from behind the eight ball!

Thanks to all. Another good suggestion that was just sent to me was a materialized view but it wouldn't have worked in my case.

Thanks to all!

Kathy

-----Original Message-----
From: Connor McDonald [mailto:hamcdc_at_yahoo.co.uk] Sent: Wednesday, November 03, 2004 3:54 AM To: Oracle L (E-mail)
Subject: Re: is there better way than the call a function twice.

try

select x, x from
 ( select ugly x from a where rownum > 0 )- this one worked very welll but

or

select x, x from
 ( select /*+ NO_MERGE */ ugly x from a ) - this one was just a hair better

hth
connor

• "Duret, Kathy" <kduret_at_starkinvestments.com> wrote:
  > oh magic eight ball is there a better way than calling a ugly function
  twice
  > when I need two columns returned with the same value.
  >
  > I hate the call the function twice because it is very costly.
  >
  > what I need to do is:
  > select x,y,z, ugly_function as ugly1, ugly_function ugly2 from a
  >
  > when I do.... it actually gives me worse results ie. more physical
  reads....
  >
  > select x,y,z , ugly1, ugly1 as ugly2 from (
  > select x,y,z, ugly_function ugly1 from a)
  >
  > Is there anyway around this?
  >
  >
  > Kathy.
  >
  >
  >
  >
  >
  >
  >
  >
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  ---

Connor McDonald
Co-author: "Mastering Oracle PL/SQL - Practical Solutions" ISBN: 1590592174 web: http://www.oracledba.co.uk
web: http://www.oaktable.net
email: connor_mcdonald_at_yahoo.com

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copies of this transmission.  This message and/or the materials contained
herein are not an offer to sell, or a solicitation of an offer to buy, any
securities or other instruments.  The information has been obtained or
derived from sources believed by us to be reliable, but we do not represent
that it is accurate or complete.  Any opinions or estimates contained in
this information constitute our judgment as of this date and are subject to
change without notice.  Any information you share with us will be used in
the operation of our business, and we do not request and do not want any
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Received on Wed Nov 03 2004 - 08:56:33 CST