Which Aggregate Function Is Used to Find the Number of Values

question 56

Multiple Choice

Which aggregate function is used to find the number of values in a field?

• A) Values
• B) Num
• C) Number
• D) Count

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Definitions:

Accommodation

The process by which the eye changes optical power to maintain a clear image or focus on an object as its distance varies.

Elastic

Capable of returning to its original shape after being stretched or compressed, a property of certain materials.

Sclera

The white, outer layer of the eyeball that provides protection and shape.

Choroid

The vascular layer between the sclera and the retina in the eye, providing oxygen and nourishment to the outer layers of the retina.