Which of the following is true of N:M relationships?
A)The number of entities on each side must be equal.
B)They are common examples of minimum cardinalities.
C)They are also called one-to-many relationships.
D)They can have more than one entity on each side of the relationship.

Question

Quizplus · Accepted Answer

N:M relationships can have more than one entity on each side of the relationship. In fact, the "N" and "M" in the relationship name refer to the "many" part of the relationship, indicating that there can be multiple entities on both sides. Option A is incorrect because the number of entities on each side does not have to be equal. Option B is incorrect because N:M relationships do not have to be minimum cardinalities - they can also be maximum cardinalities. Option C is incorrect because one-to-many relationships refer to a different type of relationship where there is only one entity on one side and multiple entities on the other side.

Which of the Following Is True of N:M Relationships