SQUARE (Transact-SQL)

APPLIES TO: yesSQL Server (starting with 2008) noAzure SQL Database yesAzure SQL Data Warehouse yesParallel Data Warehouse

Returns the square of the specified float value.

Topic link icon Transact-SQL Syntax Conventions


SQUARE ( float_expression )  


Is an expression of type float or of a type that can be implicitly converted to float.

Return Types



The following example returns the volume of a cylinder having a radius of 1 inch and a height of 5 inches.

DECLARE @h float, @r float;  
SET @h = 5;  
SET @r = 1;  
SELECT PI()* SQUARE(@r)* @h AS 'Cyl Vol';  

Here is the result set.

Cyl Vol  

Examples: Azure SQL Data Warehouse and Parallel Data Warehouse

The following example returns the square of each value in the volume column in the containers table.

-- Uses AdventureWorks  

CREATE TABLE Containers (  
    ID int NOT NULL,  
    Name varchar(20),  
    Volume float(24));  

INSERT INTO Containers VALUES (1, 'Cylinder', '125.22');  
INSERT INTO Containers VALUES (2, 'Cube', '23.98');  

SELECT Name, SQUARE(Volume) AS VolSquared   
FROM Containers;  

Here is the result set.

Name           VolSquared
-------------  ----------
Cylinder       15680.05
Cube             575.04

See Also

Mathematical Functions (Transact-SQL)