How to fix the Oracle error ORA-36636: (XSDUNION04) The unique concat dimension workspace object cannot be changed to NOT UNIQUE, because it is a base of at least one other unique concat dimension.?

In this post, you’ll learn more about the Oracle ErrorORA-36636: (XSDUNION04) The unique concat dimension workspace object cannot be changed to NOT UNIQUE, because it is a base of at least one other unique concat dimension. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-36636: (XSDUNION04) The unique concat dimension workspace object cannot be changed to NOT UNIQUE, because it is a base of at least one other unique concat dimension.

Reason for the Error ORA-36636: (XSDUNION04) The unique concat dimension workspace object cannot be changed to NOT UNIQUE, because it is a base of at least one other unique concat dimension.

A non-unique concat dimension cannot be used as a base of a dependent unique concat.

How to fix the Error ORA-36636: (XSDUNION04) The unique concat dimension workspace object cannot be changed to NOT UNIQUE, because it is a base of at least one other unique concat dimension. ?

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

CHGDFN any dependent unique concat dimensions to NOT UNIQUE and retry.

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