ORA-00918: Column Ambiguously Defined

(Doc ID 1513816.1)

Last updated on JULY 07, 2017

Applies to:

Oracle Server - Enterprise Edition - Version and later
Information in this document applies to any platform.
Using two DBs with
This behavior was not reproduced in


 Receive an ORA-00918: column ambiguously defined while selecting over DBlink.

1. column names of length 30  
2. database link (remote query)
3. ANSI join syntax
4. fails with  ora-918


Upgrading to


Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms