How to fix the Oracle error QSM-01077: materialized view, string, is grouping at a higher level than query?

In this post, you’ll learn more about the Oracle ErrorQSM-01077: materialized view, string, is grouping at a higher level than query with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

QSM-01077: materialized view, string, is grouping at a higher level than query

Reason for the Error QSM-01077: materialized view, string, is grouping at a higher level than query

If a query column, which is not present in the materialized view, can be obtained by a rollup within the materialized view, then it should group at a higher level than the materialized view.

How to fix the Error QSM-01077: materialized view, string, is grouping at a higher level than query ?

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

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