For a unary one-to-one relationship between two entities A and B,the relationship is represented by:
A)adding the primary key of A as a foreign key of B
B)adding the primary key of B as a foreign key of A
C)combining the two entities into one relation
D)either A or B

Question

Quizplus · Accepted Answer

In a unary one-to-one relationship, either entity can reference the other by adding the primary key of one as a foreign key in the other, making both options A and B valid.

For a Unary One-To-One Relationship Between Two Entities a and B,the