Which One of the Following Statements Is True About Primary

question 23

Multiple Choice

Which one of the following statements is true about primary keys?

• A) A column of names is usually a good choice for use as a primary key.
• B) Only a single record can be used as a primary key.
• C) Social Security numbers are never used as a primary key.
• D) A primary key is used to uniquely identify records in a table.

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Definitions:

Dehydration

A condition that occurs when the body doesn't have enough water and other fluids to carry out its normal functions.

Prolonged Bed Rest

Extended periods of lying in bed for medical reasons, which may lead to complications.

Hypothermia

A medical emergency that occurs when your body loses heat faster than it can produce heat, causing a dangerously low body temperature.

Schizophrenia

A chronic mental health disorder characterized by distortions in thinking, perception, emotions, language, sense of self, and behavior.