How to fix the Oracle error QSM-02194: CASE expressions present in materialized view?

In this post, you’ll learn more about the Oracle ErrorQSM-02194: CASE expressions present in materialized view with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

QSM-02194: CASE expressions present in materialized view

Reason for the Error QSM-02194: CASE expressions present in materialized view

The capability in question is not supported when the materialized view contain CASE expressions.

How to fix the Error QSM-02194: CASE expressions present in materialized view ?

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

Re-phrase the query to avoid the use of CASE expressions.