How to fix the Oracle error ORA-36639: (XSDUNION18) UNIQUE cannot be applied to this concat dimension because leaves workspace object and workspace object share the value number.?

In this post, you’ll learn more about the Oracle ErrorORA-36639: (XSDUNION18) UNIQUE cannot be applied to this concat dimension because leaves workspace object and workspace object share the value number. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-36639: (XSDUNION18) UNIQUE cannot be applied to this concat dimension because leaves workspace object and workspace object share the value number.

Reason for the Error ORA-36639: (XSDUNION18) UNIQUE cannot be applied to this concat dimension because leaves workspace object and workspace object share the value number.

Unique concat base dimensions cannot contain duplicate values.

How to fix the Error ORA-36639: (XSDUNION18) UNIQUE cannot be applied to this concat dimension because leaves workspace object and workspace object share the value number. ?

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

Use MAINTAIN RENAME to change one of the duplicate values and retry.