By: Greg Robidoux
The CHAR function is used to get the actual character when the ASCII value is provided.
Syntax
CHAR(value)
Simple CHAR Example
SELECT CHAR(49) SELECT CHAR(50) SELECT CHAR(51) SELECT CHAR(65) SELECT CHAR(66) SELECT CHAR(67)
We get the following values:
1 2 3 A B C
Get List of All CHAR Values and Integer Value
The following will get a list of the CHAR value and the corresponding character.
DECLARE @counter INT = 0
CREATE TABLE #CharValues ([char] nchar(1), [value] int)
WHILE (@counter <= 255 )
BEGIN
BEGIN TRY
INSERT INTO #CharValues
SELECT CHAR(@counter), @counter
SET @counter = @counter + 1
END TRY
BEGIN CATCH;
SET @counter = @counter + 1
IF @counter > 255
BEGIN
BREAK
END
END CATCH
END
SELECT [value], [char] FROM #CharValues
DROP TABLE #CharValues
Here are a few rows from the query results.
Related Articles
- SQL Server Char Function and Reference Guide - this includes a table of values
- SQL ASCII
