RE: Forcing SQL query to use 2 index hints
- From: "Stauffer, Robert G" <rstauffer@xxxxxxxxxxxxxxxxxxxx>
- To: <fred_fred_1@xxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 9 Sep 2005 11:27:11 -0400
Try the following per "Specifying a Full Set of Hints" in the 9ir2
Performance Tuning Guide and Reference
SELECT /*+ index(a index_A) index(b index_B) */
column1,column2,column3,column4
from table_a a,table_b b
where a.something = b.something;
Bob Stauffer
DBA
D&E Communications
Ephrata, PA, USA
717-738-8737
rstauffer@xxxxxxxxxxxxxxxxxxxx
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Fred Smith
Sent: Friday, September 09, 2005 11:17
To: oracle-l@xxxxxxxxxxxxx
Subject: Forcing SQL query to use 2 index hints
Hello all,
I am attempting to force a query to use 2 index hints, but am not
having
any luck with finding the correct syntax.
The query works, and if I add 1 index hint, the explain plan output
shows
that it is using the index I specify. However, I need it to use 2 hints:
What is the correct syntax?
SELECT /*+ index(a index_A, b index_B) */
column1,column2,column3,column4
from table_a a,table_b b
where a.something = b.something;
(The above is not using "index_B" .... how do I force it to use
index_B??
Only index_A is being used. What is the correct syntax?)
Thank you!!!!!
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