The Entity Integrity Rule States That

question 75

Multiple Choice

The entity integrity rule states that:

• A) no primary key attribute can be null.
• B) referential integrity must be maintained across all entities.
• C) each entity must have a primary key.
• D) a primary key must have only one attribute.

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Definitions:

Supply Availability

The extent to which goods, services, and materials needed by consumers or businesses are available for purchase or delivery.

Supply Research

The process of studying the market and suppliers to understand the availability, quality, and cost of materials or services needed by a business.

Benchmarking

A method of measuring the performance of a company's products, services, or processes against those of another business considered to be the best in the industry.

Purchasing Process

A series of steps taken by organizations to acquire goods or services, typically including identification of needs, selection of suppliers, negotiation, and payment.