How to fix the Oracle error LPX-00109: duplicate name “~S” in mixed-content declaration?

In this post, you’ll learn more about the Oracle ErrorLPX-00109: duplicate name “~S” in mixed-content declaration with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

LPX-00109: duplicate name “~S” in mixed-content declaration

Reason for the Error LPX-00109: duplicate name “~S” in mixed-content declaration

Cause: Validity Constraint 3.2.2 failed: “The same name must not appear more than once in a single mixed-content declaration.” *Example: *Explanation: ‘a’ occurs more than once in the mixed-content declaration.

How to fix the Error LPX-00109: duplicate name “~S” in mixed-content declaration ?

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

Action: Correct the DTD.