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CHAR Function

Posted By: Sarita Patel     Category: SQL Server     Views: 5190

This article describes about CHAR function and it's use in sql server with examples.

CHAR function is used to convert an integer value to it's equivalent character.

It is also used to insert control characters into strings. Below table specifies control character and it's value.

Control Character




Line Feed


Carriage return


Syntax of CHAR Function : 

CHAR ( integer_expression )

integer_expression is an integer from 0 through 255. If integer_expression is not in specified range than it returns NULL.

Return type of CHAR function is char type.   

Examples of CHAR Function : 

Example 1 : Use of CHAR function in select clause



Above example displays the use of CHAR function to display character based on ascii value.

Example 2 : Use of  CHAR function in where clause and nesting string functions

SELECT ContactName, CompanyName 
FROM   Customers
WHERE  CHAR(ASCII(ContactName)) = CHAR(ASCII(CompanyName))

ContactName         CompanyName
Ana Trujillo            Ana Trujillo Emparedados y helados
Antonio Moreno     Antonio Moreno Taquería

Above example displays all customers, where first character of contact name and company name is same. It also shows how can we nest string functions. 


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Sarita Patel
Sarita Patel author of CHAR Function is from United States.
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