How to fix the Oracle error QSM-02051: subquery using the NOT EXISTS clause in mv?

In this post, you’ll learn more about the Oracle ErrorQSM-02051: subquery using the NOT EXISTS clause in mv with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

QSM-02051: subquery using the NOT EXISTS clause in mv

Reason for the Error QSM-02051: subquery using the NOT EXISTS clause in mv

The capability in question is not supported when the materialized view uses the NOT EXISTS with a subquery.

How to fix the Error QSM-02051: subquery using the NOT EXISTS clause in mv ?

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

Re-phrase the query to avoid the use of the NOT EXITS clause.