CREATE OWN LIBRARY
Relationship (One to One)
Description: Every Department should have a manager and only one employee manages a Department. And an employee can manage only one dept.
.png)
Cardinality of Employee: 1 and Cardinality of Department: 1
Participation of Employee: 0 (partial) and Participation of Department: 1 (Total)
See the previous chapter to know how to calculate cardinality and participation:
Introduction of Relationship (ER Diagram)
Representation of ER diagram:
.png)
.png)
