What Is a Primary Key

question 228

Multiple Choice

What is a primary key?

• A)A field (or group of fields) that uniquely identifies a given entity in a table.
• B)A primary key of one table that appears as an attribute in another table and acts to provide a logical relationship among the two tables.
• C)Characteristics or properties of an entity.
• D)A field (or group of fields) that uniquely identifies a given attribute in a table.

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Definitions:

Horizontal Integration

A business strategy where a company acquires or merges with other companies at the same level in the production process or supply chain to increase market share and reduce competition.

Vertical Integration

A strategy where a company expands its operations into different steps on the same production path, such as when a manufacturer owns its supplier and/or distributor.

Goods And Services

The tangible products and intangible activities that are offered for sale or trade in the market to satisfy consumer needs and wants.

Consumerism

The societal and economic order that encourages the acquisition of goods and services in ever-increasing amounts, often prioritizing consumption over other values.