| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Usenet -> c.d.o.server -> Oracle Join Optimization
Can I get oracle to only scan the results
of a joined query?
Example:
Select * from table1,table2
where table1.id = table2.id and
table1.field1 = 'test'
In this query, Oracle is doing a full scan on table1 to find 'test'. After the scan is over, it will then do the join.
I really want it to only find 'test' on the resulting records of the join.
Hope this make sense.
-G
Sent via Deja.com http://www.deja.com/
Before you buy.
Received on Wed Nov 22 2000 - 14:45:02 CST
 |
 |