RE: SQL Tunning

["Leonard, George" <GLeonard@xxxxxxxxxxxxx>]

Build a functional index on the last_update_date column, it is probably
ignoring it, doing a tablescan

Create index xxx on xxxx ( trunc(last_update_date)) tablespace yyyyyy;


George
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George Leonard
Oracle Database Administrator
New Dawn Technologies @ Wesbank
E-mail:gleonard@xxxxxxxxxxxxx
 
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-----Original Message-----
From: Wes Brooks [mailto:wes_brooks@xxxxxxxxx] 
Sent: 02 August 2004 12:13 PM
To: Oracle-L@xxxxxxxxxxxxx
Subject: SQL Tunning

Hello expert,

I have a table with 40 millions records and the last update date is indexed.
But when we use the
following where clause, it takes forever to run the report.

   WHERE TRUNC(last_update_date) = TRUNC(SYSDATE - 1) 

How to improve the performance?  Do I need to create a new index field on
the table with TRUNC(last_update_date)?
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