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:

Declined

A decrease in quantity, quality, or strength; refusal to accept or agree to something, often a proposal or request.

Mikhail Gorbachev

The last leader of the Soviet Union, known for his policies of glasnost (openness) and perestroika (restructuring), leading to the end of the Cold War.

Pro-Democracy Movements

Collective actions or initiatives aimed at advocating for democratic governance and the expansion of democratic rights and institutions.

Soviet Union

A federal socialist state in Northern Eurasia that existed from 1922 to 1991, formally known as the Union of Soviet Socialist Republics (USSR), characterized by its single-party rule by the Communist Party.