My Oracle Support Banner

ORA-918 When Different Subquery Blocks Use The Same Aliases In 11gR2 (Doc ID 1494660.1)

Last updated on FEBRUARY 28, 2019

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


CT has upgraded their database from 10gR2 ( to and found a SQL with WITH clause returns ORA-918, but it worked fine on 10gR2.

It appears that this symptom is only reproducible on 11.2.0.* version.



Upgrade is done to 11.2


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

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.