Sub select & union all - sql

Question

SELECT C.ClientCaseNumber,
Sum(CASE
WHEN CA.CaseActionDefinitionId IN (28, 29, 30) THEN 1
ELSE 0
END) AS [Wezwania],
Sum(CASE
WHEN CA.CaseActionDefinitionId IN (14, 21) THEN 1
ELSE 0
END) AS [Kontakt],
Sum(CASE
WHEN CA.CaseActionDefinitionId = 32 THEN 1
ELSE 0
END) AS [SMS],
Sum(CASE
WHEN CA.CaseActionDefinitionId = 44 THEN 1
ELSE 0
END) AS [Zgon],
Sum(CASE
WHEN CA.CaseActionDefinitionId = 49 THEN 1
ELSE 0
END) AS [Areszt],
Sum(CASE
WHEN CA.CaseActionDefinitionId = 37 THEN 1
ELSE 0
END) AS [Odmowa],
Sum(CASE
WHEN CA.CaseActionDefinitionId = 39 THEN 1
ELSE 0
END) AS [Podważa],
Sum(CASE
WHEN CA.CaseActionDefinitionId = 99 THEN 1
ELSE 0
END) AS [Ugoda],
[Adres],
[Numer],
[Mail],
[Powód]
FROM (SELECT Notes AS [Adres]
FROM CaseActionHistory
WHERE CaseActionDefinitionId = 68
UNION ALL
SELECT Info AS [Numer]
FROM CaseActionHistory
WHERE CaseActionDefinitionId IN (54, 55, 56, 58,
59, 60, 61, 62, 63)
UNION ALL
SELECT Notes AS [Mail]
FROM CaseActionHistory
WHERE CaseActionDefinitionId = 66
UNION ALL
SELECT Description AS [Powód]
FROM CaseActionDefinition
JOIN CaseActionHistory AS C
ON DefinitionId = C.CaseActionDefinitionId
WHERE DefinitionId BETWEEN 70 AND 78) AS x
INNER JOIN CaseDetails AS C
ON x.CaseDetailId = C.CaseDetaislId
INNER JOIN CaseActionHistory AS CA
ON C.CaseDetailsId = CA.CaseDetailId
WHERE C.ClientId = '11'
GROUP BY C.ClientCaseNumber
I've got such query. As return shows error of invalid columns "CaseDetailId, CaseDetailsId, Mail, Numer, Powód".
http://oi39.tinypic.com/2vwy44n.jpg
That's more or less how the results should look like.
ClientCaseNumber is taken from table CaseDetails
All the sums are sums of code added to CaseActionHistory table.
Notes/Info are in CaseActionHistory table
Description is placed in CaseActionDefinition table.
Between tables there are such connections:
CaseDetails.CaseDetailId = CaseActionHistory.CaseDetailsId
CaseActionHistory.CaseActionDefinitionId = CaseActionDefinition.DefinitionId

Answer 1

The UNION clause does not work like that.
This query:
select Notes as [Adres] from CaseActionHistory where ...
UNION ALL
select Info as [Numer] from CaseActionHistory where ...
UNION ALL
select Notes as [Mail] from CaseActionHistory where ...
UNION ALL
select Description as [Powód] from CaseActionDefinition join CaseActionHistory ...
will not populate a table with 4 columns. Instead it will be a table with one column, with all the values one after the other. The name of the column will be taken from the first SELECT, i.e.
if the first query returns values 1 and 2,
the second query returns values 3 and 4
the third query returns values 5 and 6
the fourth query returns values 7 and 8
you wont get:
Adres | Numer | Mail | Powód
------------------------------
1 | 3 | 5 | 7
2 | 4 | 6 | 8
but you'll get:
Adres
-------
1
2
3
4
5
6
7
8

Answer 2

Are you not missing the alias 'x' from these fields:
SELECT
C.ClientCaseNumber
,sum(case when CA.CaseActionDefinitionId in (28,29,30) then 1 else 0 end) as [Wezwania]
,sum(case when CA.CaseActionDefinitionId in (14,21) then 1 else 0 end) as [Kontakt]
,sum(case when CA.CaseActionDefinitionId = 32 then 1 else 0 end) as [SMS]
,sum(case when CA.CaseActionDefinitionId = 44 then 1 else 0 end) as [Zgon]
,sum(case when CA.CaseActionDefinitionId = 49 then 1 else 0 end) as [Areszt]
,sum(case when CA.CaseActionDefinitionId = 37 then 1 else 0 end) as [Odmowa]
,sum(case when CA.CaseActionDefinitionId = 39 then 1 else 0 end) as [Podważa]
,sum(case when CA.CaseActionDefinitionId = 99 then 1 else 0 end) as [Ugoda]
,x.[Adres]
,x.[Numer]
,x.[Mail]
,x.[Powód]
FROM
(select Notes as [Adres] from CaseActionHistory where CaseActionDefinitionId = 68
UNION ALL
select Info as [Numer] from CaseActionHistory where CaseActionDefinitionId in (54,55,56,58,59,60,61,62,63)
UNION ALL
select Notes as [Mail] from CaseActionHistory where CaseActionDefinitionId = 66
UNION ALL
select Description as [Powód] from CaseActionDefinition join CaseActionHistory as C on DefinitionId = C.CaseActionDefinitionId where DefinitionId between 70 and 78)
AS x
inner join CaseDetails as C on x.CaseDetailId = C.CaseDetaislId
inner join CaseActionHistory as CA on C.CaseDetailsId = CA.CaseDetailId
where C.ClientId = '11'
GROUP by C.ClientCaseNumber