In this post, you’ll learn more about the Oracle ErrorORA-32302: object materialized views must be object ID based with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-32302: object materialized views must be object ID based
Reason for the Error ORA-32302: object materialized views must be object ID based
An attempt was made to create an object materialized view that is not object ID based.
How to fix the Error ORA-32302: object materialized views must be object ID based ?
You can fix this error in Oracle by following the below steps
Create the materialized view using the OF clause but omit any ROWID or PRIMARY KEY clauses.