How to fix the Oracle error ORA-29660: Unable to find the class defined in the EXTERNAL NAME clause?

In this post, you’ll learn more about the Oracle ErrorORA-29660: Unable to find the class defined in the EXTERNAL NAME clause with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-29660: Unable to find the class defined in the EXTERNAL NAME clause

Reason for the Error ORA-29660: Unable to find the class defined in the EXTERNAL NAME clause

The class is not loaded in the database.

How to fix the Error ORA-29660: Unable to find the class defined in the EXTERNAL NAME clause ?

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

Make sure the EXTERNAL NAME corresponds to a loaded class in the the database.