You are developing an entity-relationship diagram. The entity that you are currently working is "patient". Which of the following would be the primary key for the entity patient?

Question

Quizplus · Accepted Answer

The health record number is unique to each patient and serves as the most appropriate primary key for the patient entity. Last name and address may not always be unique and attending physician number may not be applicable to all patients.

You Are Developing an Entity-Relationship Diagram