How to fix the Oracle error QSM-02039: top level mv query uses grouping sets?

In this post, you’ll learn more about the Oracle ErrorQSM-02039: top level mv query uses grouping sets with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

QSM-02039: top level mv query uses grouping sets

Reason for the Error QSM-02039: top level mv query uses grouping sets

The capability in question is not supported when the materialized view use grouping sets.

How to fix the Error QSM-02039: top level mv query uses grouping sets ?

You can fix this error in Oracle by following the below steps

Re-phrase the query to avoid use of grouping sets.