"ORA-00979: Not A GROUP BY Expression" After Upgrade In 12.2 (Doc ID 2705691.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

Complex view in 11g env is running without issue but in 12.2, it fails with "ORA-00979: not a GROUP BY expression"

Ct upgraded from 11.2.0.3 to 12.2.0.1 (psu jan 2019).

	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

Symptoms

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