RDBPROD: Performance Advice on Using WHERE IN (SELECT FROM table)
(Doc ID 602499.1)
Last updated on APRIL 14, 2022
Applies to:Oracle Rdb Server on OpenVMS - Version 18.104.22.168 and later
HP OpenVMS Itanium
HP OpenVMS Alpha
Performance advice on using WHERE IN (in-list) when the in-list is an embedded SELECT:
- TAB1 contains 2 million rows and TAB2 contains 50000. Both have indexes on COL1.
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document