What Is the Purpose of the Primary Key

question 36

Multiple Choice

What is the purpose of the primary key?

• A)to uniquely identify each record in a table
• B)to uniquely identify each table in a database
• C)to create a relationship between two tables in a database
• D)to create a relationship for queries in a database

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Definitions:

Prosopagnosia

A neurological disorder characterized by the inability to recognize faces.

Stimuli

Any external or internal event or object that influences reactions or responses from a biological organism or system.

Tone Sensitivity

The ability to distinguish different frequencies of sound or musical notes.

Absolute Threshold

The minimum intensity of a stimulus that one can detect 50% of the time.