How to fix the Oracle error ORA-32308: object materialized views must use SELECT *?

In this post, you’ll learn more about the Oracle ErrorORA-32308: object materialized views must use SELECT * with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-32308: object materialized views must use SELECT *

Reason for the Error ORA-32308: object materialized views must use SELECT *

An attempt was made to create an object materialized view where the definition query did not use SELECT * at the topmost level.

How to fix the Error ORA-32308: object materialized views must use SELECT * ?

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

Rewrite the definition query so that SELECT * is used at the topmost level.