RE: SQL Tunning
- From: "Leonard, George" <GLeonard@xxxxxxxxxxxxx>
- To: "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
- Date: Mon, 2 Aug 2004 12:19:13 +0200
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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