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

ERRORmaterialized view, string, is TRUSTED in ENFORCED integrity mode
CAUSEA stale materialized view created with USING TRUSTED CONSTRAINTS clause cannot be used when the query rewrite integrity mode is set ENFORCED.
ACTIONAlter materialized view such that it has the ENFORCED CONSTRAINTS ALTER MATERIALIZED VIEW REFRESH USING ENFORCED CONSTRAINTS