Assuming the "Quantity" column of an ORDER table contains integer data,what does COUNT(Quantity)compute?
A)The number of rows in the ORDER table
B)The number of non-zero values in the Quantity column
C)The number of distinct values in the Quantity column
D)The number of non-null values in the Quantity column

Question

Quizplus · Accepted Answer

COUNT(Quantity) counts the number of non-null values in the Quantity column.

Assuming the "Quantity" Column of an ORDER Table Contains Integer