Re: is there better way than the call a function twice.
- From: Connor McDonald <hamcdc@xxxxxxxxxxx>
- To: "Oracle L (E-mail)" <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 3 Nov 2004 09:54:10 +0000 (GMT)
try
select x, x from
( select ugly x from a where rownum > 0 )
or
select x, x from
( select /*+ NO_MERGE */ ugly x from a )
hth
connor
--- "Duret, Kathy" <kduret@xxxxxxxxxxxxxxxxxxxx> 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@xxxxxxxxx
Coming Soon! "Oracle Insight - Tales of the OakTable"
"GIVE a man a fish and he will eat for a day. But TEACH him how to fish,
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