Diviser la chaîne en deux colonnes

J'ai la chaîne suivante à diviser en deux colonnes:

Donné:

DECLARE @String VARCHAR(MAX) = 'Mak^1,Jak^2,Smith^3,Lee^4,Joseph^5'

Je veux le diviser en deux colonnes:

column1  column2
-----------------
Mak      1
Jak      2
Smith    3
Lee      4
Joseph   5

Mon essai:

Fonction table:

CREATE FUNCTION [dbo].[udf_Split]
(
@InputString VARCHAR(8000), 
@Delimiter VARCHAR(50)
)
RETURNS @Items TABLE (ID INTEGER IDENTITY(1,1), Item VARCHAR(8000))

AS
BEGIN
      IF @Delimiter = ' '
      BEGIN
            SET @Delimiter = ','
            SET @InputString = REPLACE(@InputString, ' ', @Delimiter)
      END
      IF (@Delimiter IS NULL OR @Delimiter = '')
            SET @Delimiter = ','

      DECLARE @Item VARCHAR(8000)
      DECLARE @ItemList VARCHAR(8000)
      DECLARE @DelimIndex INT

      SET @ItemList = @InputString
      SET @DelimIndex = CHARINDEX(@Delimiter, @ItemList, 0)
      WHILE (@DelimIndex != 0)
      BEGIN
            SET @Item = SUBSTRING(@ItemList, 0, @DelimIndex)
            INSERT INTO @Items VALUES (@Item)

            SET @ItemList = SUBSTRING(@ItemList, @DelimIndex+1, LEN(@ItemList)-@DelimIndex)
            SET @DelimIndex = CHARINDEX(@Delimiter, @ItemList, 0)
      END -- End WHILE

      IF @Item IS NOT NULL 
      BEGIN
            SET @Item = @ItemList
            INSERT INTO @Items VALUES (@Item)
      END

      ELSE INSERT INTO @Items VALUES (@InputString)

      RETURN

END 

Appel de fonction:

SELECT Item FROM [dbo].[udf_Split](@String ,',');

Production:

Item
--------------
Mak^1
Jak^2
Smith^3
Lee^4
Joseph^5