MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

SQL

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which SQL function is used to find the average value of any column?

A	Mean()
B	Avg()
C	Average()
D	Sum()

Explanation:

Detailed explanation-1: -The SQL AVG() function is used to find the average of values over records from a table.

Detailed explanation-2: -The AVG() function returns the average value of a numeric column.

Detailed explanation-3: -AVG() function is an aggregate function that calculates the average value of a numerical dataset that returns from the SELECT statement.

Detailed explanation-4: -The AVG() function returns the average value of an expression.

Detailed explanation-5: -If you’d like to calculate the average of numeric values stored in a column, you can do so using the AVG() aggregate function; it takes as its argument the name of the column whose average you want to calculate.

There is 1 question to complete.