A Is a Column (Or Columns) That Uniquely Identifies Each

question 29

Multiple Choice

A is a column (or columns) that uniquely identifies each row of data in a database.

• A) selector
• B) main key
• C) identifier
• D) primary key

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Definitions:

Division of Labor

The allocation of different parts of a manufacturing process or task to different people, based on specialized skills, to increase efficiency.

Pre-agriculture Societies

Human communities that existed before the development of farming and agricultural practices, typically relying on hunting, gathering, and fishing for subsistence.

Jobs

Positions of employment where individuals are hired to perform specific duties in exchange for compensation.

Part-Time Work

Employment with fewer hours per week than a full-time job, often offering flexibility but with fewer benefits than full-time positions.