How to fix the Oracle error ORA-21615: copy of an OTS (named or simple) instance failed?

In this post, you’ll learn more about the Oracle ErrorORA-21615: copy of an OTS (named or simple) instance failed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-21615: copy of an OTS (named or simple) instance failed

Reason for the Error ORA-21615: copy of an OTS (named or simple) instance failed

see following message

How to fix the Error ORA-21615: copy of an OTS (named or simple) instance failed ?

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

Check that no attribute value violates constraints.