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What Is the Main Purpose of Using Foreign Keys in a Relational

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What is the main purpose of using foreign keys in a relational database design?


Definitions:

Terminal Patient

A person who has an incurable or irreversible condition that has been medically confirmed to lead to death in the short term.

Coma

A deep state of prolonged unconsciousness in which a person cannot be awakened, resulting from illness, injury, or medical condition.

Active Voluntary Euthanasia

The act of deliberately ending the life of a patient, at their request, to relieve them from intractable suffering.

PAD

Peripheral Artery Disease, a condition characterized by narrowed arteries which reduce blood flow to the limbs, often leading to pain and mobility issues.

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