How to fix the Oracle error ORA-31153: Cannot create schema URL with reserved prefix “http://xmlns.oracle.com/xdb/schemas/”?

In this post, you’ll learn more about the Oracle ErrorORA-31153: Cannot create schema URL with reserved prefix “http://xmlns.oracle.com/xdb/schemas/” with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-31153: Cannot create schema URL with reserved prefix “http://xmlns.oracle.com/xdb/schemas/”

Reason for the Error ORA-31153: Cannot create schema URL with reserved prefix “http://xmlns.oracle.com/xdb/schemas/”

This prefix is reserved for XDB extended schema URLs and cannot be used in a user specified URL.

How to fix the Error ORA-31153: Cannot create schema URL with reserved prefix “http://xmlns.oracle.com/xdb/schemas/” ?

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

Modify the prefix to a different one.