Deptno as the primary key. We would add business validation that states that there should not be a way to create a duplicate of the department name that is already available. The following steps show how to create an alternate key:
DeptEO.xmlfile and expand the Alternate Keys section. Alternate keys are keys that are not part of the primary key.
Dnameattribute from the Available list to the Selected list and click on the OK button.
We have created ...