In Sql Database Management System Char() method or function is used for to convert the Integer Expression values into the char values. In Char() we can pass the Integer Expression which is converted into the char values that is used in the Sql Query. In that case we can directly pass the ASCII code integer values in the Char() function for example SELECT Char(65) as "Character Value", So that in this expression the integer values 65 is treated as the character values.