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:

Assignment

The transfer of rights, duties, or property from one party to another, often used in the context of contracts or real estate.

Third-Party Beneficiary

An individual or entity that is not directly involved in a contract but stands to benefit from it as specified by the contracting parties.

Contract

A legally binding agreement between two or more parties that outlines obligations and rights with respect to each other.

Listed Party

An individual or entity that appears on a list due to certain criteria, often used regarding sanctions, where listed parties are restricted from certain transactions and relationships.