ABC RETAILER
Observe the ER diagram for the ABC Retailer:

This ER diagram will be used for the following questions citing ABC Retailer ER Diagram.
-How many foreign keys will the relational schema mapped from the ABC Retailer ER diagram have?
A)0
B)1
C)2

Question

ABC RETAILER
Observe the ER diagram for the ABC Retailer:

This ER diagram will be used for the following questions citing ABC Retailer ER Diagram. 
-How many foreign keys will the relational schema mapped from the ABC Retailer ER diagram have?
A)0 
B)1 
C)2

Quizplus · Accepted Answer

The number of foreign keys in a relational schema mapped from an ER diagram depends on the relationships between entities. If an ER diagram for ABC Retailer includes relationships that necessitate referencing other tables (e.g., Orders referencing Customers, OrderItems referencing Orders, and OrderItems referencing Products), then each of these relationships would result in a foreign key in the relational schema, totaling three foreign keys.

ABC RETAILER Observe the ER Diagram for the ABC Retailer