How to fix the Oracle error QSM-01121: materialized view, string, is TRUSTED in ENFORCED integrity mode?

In this post, you’ll learn more about the Oracle ErrorQSM-01121: materialized view, string, is TRUSTED in ENFORCED integrity mode with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

QSM-01121: materialized view, string, is TRUSTED in ENFORCED integrity mode

Reason for the Error QSM-01121: materialized view, string, is TRUSTED in ENFORCED integrity mode

A stale materialized view created with USING TRUSTED CONSTRAINTS clause cannot be used when the query rewrite integrity mode is set ENFORCED.

How to fix the Error QSM-01121: materialized view, string, is TRUSTED in ENFORCED integrity mode ?

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

Alter materialized view such that it has the ENFORCED CONSTRAINTS ALTER MATERIALIZED VIEW REFRESH USING ENFORCED CONSTRAINTS