The Attribute(s) That Make Up a Foreign Key in a Relation

question 34

Multiple Choice

The attribute(s) that make up a foreign key in a relation of a database ____.

• A) cannot appear in another relation of the database
• B) may or may not appear in another relation of the database
• C) must appear in another relation of the database
• D) must have unique values in the relation in which it is a foreign key
• E) must be part of the primary key in the relation in which it is a foreign key

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Definitions:

Happiness

A state of well-being and contentment characterized by positive emotions and fulfillment.

Trait

A characteristic or quality that can be used to describe consistent behaviors in an individual's personality.

Self-Monitoring

The ability to regulate behavior to accommodate social situations, reflecting awareness and control of one's social performance.

Extraversion

Extraversion is a personality trait associated with outgoing, energetic behavior, in contrast to introversion, which is characterized by more reserved and solitary characteristics.