How to fix the Oracle error ORA-39297: Cannot alter materialized view attribute: string?

In this post, you’ll learn more about the Oracle ErrorORA-39297: Cannot alter materialized view attribute: string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-39297: Cannot alter materialized view attribute: string

Reason for the Error ORA-39297: Cannot alter materialized view attribute: string

DBMS_METADATA_DIFF was comparing two materialized views with incompatible attributes. There is no SQL ALTER statement to change this attribute of a materialized view.

How to fix the Error ORA-39297: Cannot alter materialized view attribute: string ?

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

The difference cannot be eliminated with an SQL ALTER statement.