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SQUARE (Transact-SQL)

 

THIS TOPIC APPLIES TO:yesSQL Server (starting with 2008)noAzure SQL DatabaseyesAzure 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 )  

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

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  
--------------------------  
15.707963267948966  

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

Mathematical Functions (Transact-SQL)

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