A Primary Key

question 9

Multiple Choice

A primary key:

• A) must include letters.
• B) must contain a unique value for each record within a table.
• C) has the same value for all records in a relational database.
• D) is a unique record within a relational database.

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Definitions:

Cheat

To act dishonestly or unfairly in order to gain an advantage, especially in a game, exam, or competition.

Agreements

Arrangements or contracts between parties defining their rights, responsibilities, and relationships.

Kinked-Demand

A demand curve hypothesis in oligopolistic markets that explains why firms may not change their prices even when costs change, due to competitive reactions.