RE: Slow running Query.

Juan,

unfortunately sum(nvl(column,0)) is not equivalent to nvl(sum(column),0)...

Kind regards,
Lex.

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visit my website at http://www.naturaljoin.nl
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-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of Juan Carlos Reyes
Pacheco
Sent: Tuesday, June 22, 2004 17:15
To: oracle-l@xxxxxxxxxxxxx
Subject: RE: Slow running Query.


Hi, I will do t he following


Try creating function indexes on composed columns you are queryin and tellme
if this improves something
For example you are using as_date in the where column, but you don't have a
index on substr(ca_date,1,4,....

Only to avoid unncesary plsql work
1. instead sum(nvl(column,0)) I'll use nvl(sum(column),0
2. instead of decode use case


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