In Relational Algebra, Which Command Retrieves Rows from a Table

question 4

Multiple Choice

In relational algebra, which command retrieves rows from a table based on specified criteria?

• A)SELECT
• B)JOIN
• C)CREATE
• D)UNION

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Definitions:

Dyssomnias

A category of sleep disorders marked by difficulties in the amount, quality, or timing of sleep, including insomnia and sleep apnea.

Insomnia

A sleep disorder characterized by difficulty falling asleep, staying asleep, or both, leading to insufficient rest.

Sleep Disturbance

Any condition that disrupts normal sleep patterns, including difficulties falling asleep, staying asleep, or experiencing restful sleep.

Carbohydrates

Essential nutrients found in various foods, including fruits, vegetables, and grains, that provide energy for the body's functions.