SQL Split Function and Ordering Issue?

Question

I have the following Split function,

ALTER FUNCTION [dbo].[Split](@String varchar(8000), @Delimiter char(1))     
                returns @tempt         


        

Answer 1

This will be a much faster solution when your string has 1000 or more values to split. For table-valued functions, to have any ordering, you must apply "ORDER BY" at the place of use. This is because "SELECT" from a table without "ORDER BY" is by convention not having any sorting.

CREATE FUNCTION [dbo].[Split]
( 
    @String VARCHAR(max), 
    @Delimiter VARCHAR(max)
) 
RETURNS @Data TABLE 
(
    [Order] INT IDENTITY(1,1), 
    [Value] VARCHAR(max)
)
AS
BEGIN 
    DECLARE @x XML = cast('' + replace(@String, @Delimiter, '') + '' AS XML)
    INSERT INTO @Data 
    SELECT v.value('.', 'varchar(max)') FROM @x.nodes('i') AS x(v)
    RETURN 
END
GO