[Computer Science, CS2203 - Databases 1] “A student can attend six courses, each with a different...
[Computer Science, CS2203 - Databases 1]
“A student can attend six courses, each with a different instructor. Each instructor teaches at least 3 courses.” What is the type of relationship between students and instructors?
Select one:
a. one-to-one
b. one-to-many
c. many-to-many
d. None of the above
Homework Answers
Correct Answer: c. many-to-many
Explanation:
There is a one-to-many relationship from a student to the instructor because a student can attend six courses and the different courses can be taught by the different instructors. So, a student can be taught by more than one instructor.
There is a one-to-many relationship from an instructor to a student because an instructor is teaching at least 3 courses. So, an instructor can teach more than one student
There is a one-to-many relationship from both sides. So, the type of relationship between students and instructors is many-to-many.
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