An Attribute (Or Attributes) That Uniquely Identifies Each Row in a Relation

question 96

Multiple Choice

An attribute (or attributes) that uniquely identifies each row in a relation is called a:

• A) column.
• B) foreign field.
• C) primary key.
• D) duplicate key.

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Definitions:

Transactions

In computing and databases, a series of operations performed as a single logical unit of work, often required to be atomic, consistent, isolated, and durable (ACID).

Capillaries

The smallest blood vessels in the body's circulatory system, connecting arterioles and venules, where gas, nutrient, and waste exchange occur.

Alveoli

Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.

Oxygen

A chemical element essential for life, involved in cellular respiration and energy production, and a major component of the Earth's atmosphere.