ALTER FUNCTION [dbo].[SplitString]

(

@String VARCHAR(MAX),

@Delimeter Char(1)

)

RETURNS @RtnValue TABLE

(

Value VARCHAR(100)

)

AS

BEGIN

DECLARE @Cnt INT

SET @Cnt = 1

WHILE (CHARINDEX(@Delimeter, @String) > 0)

BEGIN

INSERT INTO @RtnValue (Value)

SELECT

Data = ltrim(rtrim(Substring(@String,1,Charindex(@Delimeter,@String)-1)))

SET @String = Substring(@String,Charindex(@Delimeter,@String)+1,len(@String))

SET @Cnt = @Cnt + 1

END

INSERT INTO @RtnValue (Value)

SELECT Data = ltrim(rtrim(@String))

RETURN

END

I'm aware this is RBAR and i'm aware of tally techinics but the strings that this functions breaks are usually of something about 200 characters? but mostly it comes as a null, can that make enourmous IO counts?