Why Do Relational Databases Use Primary Keys and Foreign Keys

question 127

Multiple Choice

Why do relational databases use primary keys and foreign keys?

• A) To create an entity.
• B) To create physical relationships.
• C) To create logical relationships.
• D) To create an attribute.

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Definitions:

Transference

In psychology, a phenomenon where patients project feelings for others onto their therapist, often seen in psychoanalytic sessions.

Psychoanalysis

A therapeutic approach and theory of psychology developed by Sigmund Freud that focuses on unconscious processes influencing behavior.

Resistance

The act of rejecting or not acknowledging something, often trying to stop it through actions or reasoning.

Painful Childhood

A term referring to the experience of significant emotional, physical, or psychological pain during one's early years.