A Primary Key Cannot Be Composed of More Than One

question 26

True/False

A primary key cannot be composed of more than one field.

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Definitions:

Interindustry Competition

Competition between firms that are in different industries but may target similar markets or customer needs.

Aluminum Industry

Sector of the economy focused on the production, processing, and distribution of aluminum, a lightweight and versatile metal.

High Concentration Ratio

An economic measurement indicating that a large portion of market share is controlled by a few firms, often pointing to a lack of competition within an industry.

Competitive

A market structure characterized by a large number of firms or sellers where each has a small proportion of market share and there is free entry and exit from the market.