How to fix the Oracle error QSM-01031: materialized view, string, is stale in TRUSTED integrity mode?

In this post, you’ll learn more about the Oracle ErrorQSM-01031: materialized view, string, is stale in TRUSTED integrity mode with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

QSM-01031: materialized view, string, is stale in TRUSTED integrity mode

Reason for the Error QSM-01031: materialized view, string, is stale in TRUSTED integrity mode

A stale materialized view cannot be used for query rewrite when the query rewrite integrity mode is set to TRUSTED.

How to fix the Error QSM-01031: materialized view, string, is stale in TRUSTED integrity mode ?

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

Refresh the materialized view or alter the rewrite integrity mode with ALTER SESSION QUERY_REWRITE_INTEGRITY = STALE TOLERATED command.