Re: how to optimise query for 10+ millions records
Posted by:
Rick James
Date: February 24, 2012 10:45AM
INDEX(START_DATE) is likely to be as good or better than the compound one you provided.
The IF() clauses are preventing use of the last two fields of your index.
PARTITIONing is unlikely to help. Please provide your suggested PARTITION definition for critique.
Subject
Views
Written By
Posted
3424
February 09, 2012 03:30AM
1901
February 09, 2012 05:31AM
1596
February 09, 2012 05:38AM
1466
February 09, 2012 05:58PM
1449
February 11, 2012 11:26PM
1721
February 12, 2012 10:12PM
1567
February 13, 2012 02:18PM
1765
February 14, 2012 02:33AM
1585
February 14, 2012 07:24AM
1585
February 15, 2012 07:30AM
2084
February 16, 2012 03:54AM
1481
February 17, 2012 01:20AM
1453
February 17, 2012 03:57PM
1716
February 17, 2012 05:12PM
1548
February 18, 2012 07:18AM
1566
February 21, 2012 03:25AM
Re: how to optimise query for 10+ millions records
1597
February 24, 2012 10:45AM
1541
February 20, 2012 02:21AM
Sorry, you can't reply to this topic. It has been closed.
Content reproduced on this site is the property of the respective copyright holders.
It is not reviewed in advance by Oracle and does not necessarily represent the opinion
of Oracle or any other party.