Hur man gör en inre join på radnummer i sql-server

prova detta:

ANVÄND funktionen ROW_NUMBER() i sql server 2008

select A.val,B.val 
from(
    SELECT val,row_number() over (order by val) as row_num
    FROM A)A
join
    (SELECT val,row_number() over (order by val) as row_num
    FROM B)B
on  A.row_num=B.row_num
ORDER BY A.val,B.val

SQL-fioldemo