How to fix the Oracle error QSM-02129: join or filter condition(s) are complex?

In this post, you’ll learn more about the Oracle ErrorQSM-02129: join or filter condition(s) are complex with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

QSM-02129: join or filter condition(s) are complex

Reason for the Error QSM-02129: join or filter condition(s) are complex

The capability in question is not supported when the materialized view uses a complex join or filter condition.

How to fix the Error QSM-02129: join or filter condition(s) are complex ?

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

Re-phrase the query to simplify the join or filter condition.