Software-Engineering
August 26, 2024ER-Model
August 26, 2024Database-Management-System
|
Question 403
|
Under normal circumstances, the cardinality ratio of the binary relationship “Write” relating “Author” and “Book” entities is:
|
1 : N
|
|
|
N : 1
|
|
|
1 : 1
|
|
|
M : N
|
Question 403 Explanation:
The relationship WRITES shows that one author can write many books and one book can be written by many authors. So the cardinality ratio is M:N
Correct Answer: D
Question 403 Explanation:
The relationship WRITES shows that one author can write many books and one book can be written by many authors. So the cardinality ratio is M:N