Split Function in Sql Server

Input: 

Row Data:  100,200,300,4000

SplitOn : ','

Output as Table

-----------------

Id      Data

-----------

1        100

2        200

3        300

4        4000

ALTER FUNCTION [dbo].[Split]
(
    @RowData nvarchar(2000),
    @SplitOn nvarchar(5)
) 
RETURNS @RtnValue table
(
    Id int identity(1,1),
    Data nvarchar(100)
)
AS 
BEGIN
    Declare @Cnt int
    Set @Cnt = 1


    While (Charindex(@SplitOn,@RowData)>0)
    Begin
        Insert Into @RtnValue (data)
        Select
            Data = ltrim(rtrim(Substring(@RowData,1,Charindex(@SplitOn,@RowData)-1)))


        Set @RowData = Substring(@RowData,Charindex(@SplitOn,@RowData)+1,len(@RowData))
        Set @Cnt = @Cnt + 1
    End
   
    Insert Into @RtnValue (data)
    Select Data = ltrim(rtrim(@RowData))


    Return
END

Function to convert Html code to proper character.

Input   : it's where ' is a html code of '(oppostrope).

Output : it'z

ALTER FUNCTION [dbo].[HTMLDecode]

(@txt NVARCHAR(4000))

RETURNS NVARCHAR(4000)

AS

BEGIN

DECLARE @Start INT

DECLARE @HTMLCode NVARCHAR(5)

DECLARE @DecodeTxt NVARCHAR(4000)

SET @DecodeTxt = @txt

SET @Start = 32

WHILE @Start<=126

BEGIN

SET @HTMLCode = '&#' + CAST(@Start AS NVARCHAR(5))+';'

SELECT @DecodeTxt=REPLACE(@DecodeTxt,@HTMLCode,CAST(NCHAR(@Start) AS NVARCHAR(5)))

SET @Start = @Start + 1

END

RETURN @DecodeTxt

END

Note:
From 32  to 126 is the ascii character number so for each there is a equvilent character.
For each the character between 32 to 126 there is html value starting as &#32; to &#126; what we are doing is we are replacing this html value to the equivalent character.

For any questions you can mail me..