In this post, you’ll learn more about the Oracle ErrorORA-25012: PARENT and NEW values cannot be identical with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-25012: PARENT and NEW values cannot be identical
Reason for the Error ORA-25012: PARENT and NEW values cannot be identical
The referencing clause specifies identical values for PARENT and OLD.
How to fix the Error ORA-25012: PARENT and NEW values cannot be identical ?
You can fix this error in Oracle by following the below steps
Re-specify either the PARENT or NEW referencing value.