Alternate way for FULL OUTER JOIN

Below is an one more way of doing FULL OUTER JOINs involving multiple tables. This gives a simpler approach, instead of having multiple OR conditions in subsequent tables.

1:  DECLARE @a table(id int, data int)  
2:  DECLARE @b table(id int, data int)  
3:  DECLARE @c table(id int, data int)  
4:    
5:  insert into @a values(1, 9), (2, 8),(3,7)  
6:  insert into @b values(2, 6), (3, 5)  
7:  insert into @c values(1, 4), (2, 5)  
8:    
9:  ;WITH CTE_IDs as  
10:  (  
11:  SELECT ID from @a  
12:  UNION  
13:  SELECT ID FROM @b  
14:  UNION  
15:  SELECT ID FROM @c  
16:  )  
17:  SELECT c.ID,t.* FROM CTE_IDs as c  
18:  cross apply  
19:  (  
20:  VALUES((select data from @a where id = c.id),  
21:  (select data from @b where id = c.id),  
22:  (select data from @c where id = c.id))   
23:  ) as t(a_data,b_data,c_data)