How to fix the Oracle error PLS-00580: supertype must be an object type?

In this post, you’ll learn more about the Oracle ErrorPLS-00580: supertype must be an object type with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PLS-00580: supertype must be an object type

Reason for the Error PLS-00580: supertype must be an object type

An attempt was made to declare an object type to have a supertype, but the specified supertype was not itself an object type. Object types can inherit only from other object types.

How to fix the Error PLS-00580: supertype must be an object type ?

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

Remove the supertype specification, or change it to refer to an object type. If the declaration appears correct, make sure the supertype has compiled correctly.