Author Question: What is the difference between mapping a 1:M and a 1:1 relationship? What will be an ideal ... (Read 45 times)

tth · **on:** Jul 7, 2018

What is the difference between mapping a 1:M and a 1:1 relationship?

What will be an ideal response?

Question 2

Relationship instances occur when an instance of one entity is related to an instance of another entity via a relationship.

Indicate whether the statement is true or false

FergA · **Reply #1 on:** Jul 7, 2018

Answer to Question 1

When a 1:M relationship is mapped, the foreign key must appear in the relation mapped from the M side. When a 1:1 relationship is mapped, the designer chooses in which of the tables the foreign key will appear.

Answer to Question 2

TRUE