How to fix the Oracle error ORA-25131: cannot modify unique(string) – unique key not defined for table?

In this post, you’ll learn more about the Oracle ErrorORA-25131: cannot modify unique(string) – unique key not defined for table with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-25131: cannot modify unique(string) – unique key not defined for table

Reason for the Error ORA-25131: cannot modify unique(string) – unique key not defined for table

attempted to modify a unique key that is not deined for the table.

How to fix the Error ORA-25131: cannot modify unique(string) – unique key not defined for table ?

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

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