How to fix the Oracle error ORA-22307: operation must be on a user-defined type?

In this post, you’ll learn more about the Oracle ErrorORA-22307: operation must be on a user-defined type with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-22307: operation must be on a user-defined type

Reason for the Error ORA-22307: operation must be on a user-defined type

attempt to perform an operation that is allowed only on a user-defined type, and the type is not a user-defined type.

How to fix the Error ORA-22307: operation must be on a user-defined type ?

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

Check to make sure that only user-defined types are being operated on.