Saying that two entities are functionally dependent means that ________.
A)the entities are always connected by a mathematical equation
B)for one of the entities,if we are given the value of that entity,we can determine the value of one other entity
C)for both of the entities,if we are given the value of one entity,we can determine the value of the other entity
D)the functional dependency will have to be removed through normalization
E)All of the above.

Question

Quizplus · Accepted Answer

Functional dependency means that if we are given the value of one entity, we can determine the value of another entity. So, option B is the correct choice. Option A is incorrect because the entities can be functionally dependent without having a mathematical equation connecting them. Option C is incorrect because both entities don't necessarily have to be dependent on each other. Option D is incorrect because normalization is a technique to remove redundancy, not functional dependency.

Saying That Two Entities Are Functionally Dependent Means That ________