When the maximum cardinalities between two elements of a REAL model are "one" and "many:"

Question

Quizplus · Accepted Answer

In a "one-to-many" relationship, the primary key from the "one" side of the relationship should be placed in the table on the "many" side as a foreign key. This foreign key establishes the relationship between the two tables, and allows us to link related data together. A junction table would only be required if the relationship were a "many-to-many" relationship. Answer A is incorrect as it suggests placing the primary key from the "many" side in the table on the "one" side, which is not correct. Answer D is also incorrect as the maximum cardinalities between two elements being "one" and "many" is a valid relationship in a REAL model.

When the Maximum Cardinalities Between Two Elements of a REAL