How to fix the Oracle error QSM-02154: MV is not fast refreshable even with view merging?

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.