In this post, you’ll learn more about the Oracle ErrorQSM-02154: MV is not fast refreshable even with view merging with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
QSM-02154: MV is not fast refreshable even with view merging
Reason for the Error QSM-02154: MV is not fast refreshable even with view merging
You have a materialized view with view in the FROM clause, however it does not meet the criteria for fast refresh after view merging.
How to fix the Error QSM-02154: MV is not fast refreshable even with view merging ?
You can fix this error in Oracle by following the below steps
Restructure the materialized view query to remove the offending view or the complex construct in the view.