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title: "SQUARE (Transact-SQL) | Microsoft Docs"
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---
# SQUARE (Transact-SQL)
[!INCLUDE[tsql-appliesto-ss2008-xxxx-asdw-pdw-md](../../includes/tsql-appliesto-ss2008-xxxx-asdw-pdw-md.md)]

  Returns the square of the specified float value.  
  
 ![Topic link icon](../../database-engine/configure-windows/media/topic-link.gif "Topic link icon") [Transact-SQL Syntax Conventions](../../t-sql/language-elements/transact-sql-syntax-conventions-transact-sql.md)  
  
## Syntax  
  
```  
SQUARE ( float_expression )  
```  
  
## Arguments  
 *float_expression*  
 Is an [expression](../../t-sql/language-elements/expressions-transact-sql.md) of type **float** or of a type that can be implicitly converted to float.  
  
## Return Types  
 **float**  
  
## Examples  
 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';  
```  
  
 [!INCLUDE[ssResult](../../includes/ssresult-md.md)]  
  
```  
Cyl Vol  
--------------------------  
15.707963267948966  
```  
  
## Examples: [!INCLUDE[ssSDWfull](../../includes/sssdwfull-md.md)] and [!INCLUDE[ssPDW](../../includes/sspdw-md.md)]  
 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;  
```  
  
 [!INCLUDE[ssResult](../../includes/ssresult-md.md)]  
  
 ```
Name           VolSquared
-------------  ----------
Cylinder       15680.05
Cube             575.04
```  
  
## See Also  
 [Mathematical Functions (Transact-SQL)](../../t-sql/functions/mathematical-functions-transact-sql.md)