How To Find Square Root Of A Number in SQL Server
SQRT() Function return the square root of a given number. It takes only one positive integer as an argument and return a positive integer. An argument can be a positive integer or a fraction. Square root of a negative number can not be calculated.
Find the Square Root of an integer
In the below query we will find the square root of 16.
SELECT SQRT(16) AS SquareRootOfNumber
Find the Square Root of a fraction
In the below query we will find the square root of a fraction 81/9.
SELECT SQRT(81/9) AS SquareRootOfFraction
Find the Square Root of a decimal number
In the below query we will find the square root of a decimal number 25.25.
SELECT SQRT(25.25) AS SquareRootOfDecimal
Find the Square Root of a number using variable
In the below query we will find the square root of a number 49 by declaring a variable.
DECLARE @Num INT SET @Num = 49 SELECT SQRT(@Num) AS SquareOfNum
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