An attribute that must have a value for every entity (or relationship) instance is a(n):
A) composite attribute.
B) required attribute.
C) optional attribute.
D) multivalued attribute.

Name: An attribute that must have a value for every entity (or relationship) instance is a(n): A) composite attribute. B) required attribute. C) optional attribute. D) multivalued attribute.
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Question

Quizplus · Accepted Answer

A required attribute must have a value for every entity (or relationship) instance.

An Attribute That Must Have a Value for Every Entity