Index question
- From: Rick Stephenson <RStephenson@xxxxxxxx>
- To: "Oracle ListServ (oracle-l@xxxxxxxxxxxxx)" <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 10 Aug 2004 09:08:42 -0600
I have a query that references Table t column c in the where clause. Table
t already has an index on (column c, column d). Is there any reason to add
an index to table t that contains just column c? I know that Oracle will
use the other index because of the leading column, but is there a
performance hit due to it being a composite index?
I am running Oracle EE 9.2.0.5.
Thanks,
Rick Stephenson
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