How to fix the Oracle error ORA-02256: number of referencing columns must match referenced columns?

In this post, you’ll learn more about the Oracle ErrorORA-02256: number of referencing columns must match referenced columns with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-02256: number of referencing columns must match referenced columns

Reason for the Error ORA-02256: number of referencing columns must match referenced columns

The number of columns in the foreign-key referencing list is not equal to the number of columns in the referenced list.

How to fix the Error ORA-02256: number of referencing columns must match referenced columns ?

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

Make sure that the referencing columns match the referenced columns.