How to fix the Oracle error ORA-38420: invalid stored attribute sub-expression: string?

In this post, you’ll learn more about the Oracle ErrorORA-38420: invalid stored attribute sub-expression: string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-38420: invalid stored attribute sub-expression: string

Reason for the Error ORA-38420: invalid stored attribute sub-expression: string

The sub-expression used for the stored expression was invalid.

How to fix the Error ORA-38420: invalid stored attribute sub-expression: string ?

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

Set serveroutput ON and repeat the operation for additional information.