COUNT is designed to tally the number of non-null "values" of an attribute,and is often used in conjunction with the DISTINCT clause.

Name: COUNT is designed to tally the number of non-null "values" of an attribute,and is often used in conjunction with the DISTINCT clause.
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Quizplus · Accepted Answer

COUNT function is designed to count non-null values, and it can be used with or without the DISTINCT clause. When used with the DISTINCT clause, it will count only distinct values of the attribute.

COUNT Is Designed to Tally the Number of Non-Null "Values