How to fix the Oracle error QSM-01087: query grouping on a column that cannot be derived from materialized view, string?

In this post, you’ll learn more about the Oracle ErrorQSM-01087: query grouping on a column that cannot be derived from materialized view, string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

QSM-01087: query grouping on a column that cannot be derived from materialized view, string

Reason for the Error QSM-01087: query grouping on a column that cannot be derived from materialized view, string

Query is grouping on undetermined columns.

How to fix the Error QSM-01087: query grouping on a column that cannot be derived from materialized view, string ?

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

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