Is it a 12CR2 bug query system AQ table through dblink

From: Garry Chen <>
Date: Tue, 8 Aug 2017 15:11:29 +0000
Message-ID: <>

Recently, I have a 12CR2 instance (target) that needs to query a remote system AQ table in a 12CR1 instance (source) and getting ORA-22804 error. No problem when try to query a AQ table through dblink if both target and source are 12CR2. It also works when the target is 12CR1 and source is 12cR1 or below. It looks like this error only happen when the target instance is 12CR2 and the remote instance is released below/include 12CR1. Anyone has work around or solution for it?


Received on Tue Aug 08 2017 - 17:11:29 CEST

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