SQUARE (Transact-SQL)

SQUARE (Transact-SQL)


THIS TOPIC 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 )
-- Azure SQL Data Warehouse and Parallel Data Warehouse
SQUARE (float_expression )


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

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

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

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