Chapter 5, Problem 5.15RQ

Explanation of Solution

One-to-many relationship (1:N):

One-to-many relationship is one of the types of binary relationship that refer to the relationship between two entities which means one parent field or record can be associated with one or more child field or record.

Example:

In a class database, a teacher can teach many subjects, but the subject would not have same kind of relationship with the teacher.

IE Crow’s feet ER diagram:

Information Engineering is a method to represent the relationship between entities. It uses crow’s feet to denote the many side of relationship. Hence it is referred as IE Crow’s feet ER diagram...