Need to ommit the short form letter from the given string

Question

HI,
     I need to ommit the Short form letter from column data.
EX :
CREATE table #testdata
(id int identity(1,1),cust_address varchar(max))
insert into #testdata (cust_address)
select 'first street 5N, North'
union
select 'second street W, west'
union
select 'roja street 5S, South'
union
select 'temple street E, East'
union
select 'first street, Northwest, NW'
union
select 'first street, Southwest, SW'
select  * from #testdata
actutal out put:
id cust_address
1 first street 5N, North
2 first street, Northwest, NW
3 first street, Southwest, SW
4 roja street 5S, South
5 second street W, west
6 temple street E, East
Need to ommit the Short form letter from this output,
condition , 1) the short form letter should have space in front of the letter ex : first street (space)N, North
               so the output should be "first street, North" like that for other words like "first street, Southwest, SW" should be "first street, Southwest"
             2) the short form letter should not combine with any other letter ex :  first street 5N, North
                 here we dont need to do anything.
Required Out put :
id cust_address
1 first street 5N, North
2 first street, Northwest
3 first street, Southwest
4 roja street 5S, South
5 second street, west
6 temple street, East
Nandha Kumar

Answer 1

 CREATE FUNCTION [dbo].[SplitString]
         @str VARCHAR(MAX)
    RETURNS @ret TABLE (token VARCHAR(MAX))
     AS
     BEGIN
    DECLARE @x XML 
    SET @x = '<t>' + REPLACE(@str, ',', '</t><t>') + '</t>'
    INSERT INTO @ret
        SELECT x.i.value('.', 'VARCHAR(MAX)') AS token
        FROM @x.nodes('//t') x(i)
    RETURN
  END
with cte
as
select  *
from #testdata
CROSS APPLY (SELECT * FROM [dbo].[SplitString](cust_address)) AS der
) ,cte1
as
select *,
case when UPPER(token)=token COLLATE Latin1_General_BIN
  then  '' else token end as d 
 from cte
 ) ,CTE2
 AS
 (SELECT *,case when RIGHT(UPPER(D),1)=RIGHT(D,1) COLLATE Latin1_General_BIN 
  then  replace(D,RIGHT(UPPER(D),1),'') else token end d1 FROM CTE1
 SELECT m1.id,
       ( SELECT m2.D1 + ','
           FROM cte2 m2
          WHERE m2.id = m1.id
          ORDER BY id
            FOR XML PATH('') ) AS token
  FROM cte2 m1
 GROUP BY m1.id 
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
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