How to fix the Oracle error ORA-12020: materialized view string is not registered?

In this post, you’ll learn more about the Oracle ErrorORA-12020: materialized view string is not registered with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12020: materialized view string is not registered

Reason for the Error ORA-12020: materialized view string is not registered

An attempt was made to unregister a materialized view that is not registered.

How to fix the Error ORA-12020: materialized view string is not registered ?

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

No action required.