How to fix the Oracle error ORA-31003: Parent string already contains child entry string?

In this post, you’ll learn more about the Oracle ErrorORA-31003: Parent string already contains child entry string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-31003: Parent string already contains child entry string

Reason for the Error ORA-31003: Parent string already contains child entry string

An attempt was made to insert a duplicate child into the XDB hierarchical resolver.

How to fix the Error ORA-31003: Parent string already contains child entry string ?

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

Insert a unique name into the container.