Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Mailing Lists -> Oracle-L -> SQL Tunning

SQL Tunning

From: Wes Brooks <wes_brooks_at_yahoo.com>
Date: Mon, 2 Aug 2004 03:13:11 -0700 (PDT)
Message-ID: <20040802101311.47373.qmail@web51009.mail.yahoo.com>


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)?



Please see the official ORACLE-L FAQ: http://www.orafaq.com

To unsubscribe send email to: oracle-l-request_at_freelists.org put 'unsubscribe' in the subject line.
--

Archives are at http://www.freelists.org/archives/oracle-l/ FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
Received on Mon Aug 02 2004 - 05:08:58 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US