Hello,
I would like to merge the following representative data:
ID Col2 Col3
1 A
1 A A
1 A
1 C
1 B F
1 B
2 T
2 T T
2 T V
2
2
So it appears as follows:
ID Col2 Col3
1 A A
1 B F
1 C
2 T T
2 T V
the values don't need to line up as there is no relationship between Col2 and Col3. Just need to show a compressed / merged view of the possibilities of Col2 and Col3 for every ID.
Thanks a mil!
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sorry try this
select A.id, A.col2, A.col3
from yourtable A
where
(A.col2 is not null and A.col3 is not null) or
Exists (select B.Col2 from yourtable b where B.Id = A.ID and B.Col2= A.col2 group by B.Col2 having count(*) =1 )
or
Exists
(select c.Col3 from yourtable c where c.Id = A.ID and C.Col3= A.Col3 group by c.Col3 having count(*) =1 )
--drop table yourtable
create table yourtable (
[ID] INTEGER NOT NULL
,Col2 CHAR(1) NULL
,Col3 CHAR(1) NULL
)
create clustered index i on yourtable ([ID])
insert yourtable values ( 1, 'A', NULL )
insert yourtable values ( 1, 'A', 'A' )
insert yourtable values ( 1, NULL, 'A' )
insert yourtable values ( 1, NULL, 'C' )
insert yourtable values ( 1, 'B', 'F' )
insert yourtable values ( 1, 'B', NULL )
insert yourtable values ( 2, 'T', NULL )
insert yourtable values ( 2, 'T', 'T' )
insert yourtable values ( 2, 'T', 'V' )
insert yourtable values ( 2, NULL, NULL )
insert yourtable values ( 2, NULL, NULL )
SELECT DISTINCT
A.[ID]
,COALESCE(A.Col2, C.Col2) as Col2
,COALESCE(A.Col3, B.Col3) as Col3
FROM
yourtable as A
LEFT JOIN
yourtable as B
ON
A.Col3 is null and B.Col3 is not null and A.Col2 = B.Col2
LEFT JOIN
yourtable as C
ON
A.Col2 is null and C.Col2 is not null and A.Col3 = C.Col3
WHERE
A.Col2 IS NOT NULL
OR
A.Col3 IS NOT NULL
Business Accounts
Answer for Membership
by: imran_fastPosted on 2007-08-21 at 04:39:32ID: 19736829
select A.id, A.col2, A.col3
from yourtable A
where
(A.col2 is not null and A.col3 is not null) or
A.col2 in (select B.Col2 from yourtable b where B.Id = A.ID group by B.Col2 having count(*) =1 )
or
A.col3 in (select c.Col2 from yourtable c where c.Id = A.ID group by c.Col2 having count(*) =1 )