How to fix the Oracle error ORA-12476: least upper bound resulted in an invalid OS label?

In this post, you’ll learn more about the Oracle ErrorORA-12476: least upper bound resulted in an invalid OS label with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12476: least upper bound resulted in an invalid OS label

Reason for the Error ORA-12476: least upper bound resulted in an invalid OS label

You tried to do an operation that generated a least upper bound (LUB) label which is not a valid label on your operating system.

How to fix the Error ORA-12476: least upper bound resulted in an invalid OS label ?

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

Consult your OS label management documentation for information on invalid label generation.