XML for Table

Question

Hi, all.
I have view with few rows and i want to generate XML something like this.
<Filials>
<Filial id="1">
<Employees>
<Employee id="1">
<Assigments>
<Assigment id="1" name="Team Lead">
<EmptyCols> Col1 Col2 Col5 </EmptyCols>
</Assigment>
<Assigment id="2" name="Developer">
<EmptyCols> Col5 </EmptyCols>
</Assigment>
</Assigments>
</Employee>
<Employee id="2">
<Assigments>
<Assigment id="1" name="Team Lead">
<EmptyCols> Col2 Col5 </EmptyCols>
</Assigment>
<Assigment id="2" name="Developer">
<EmptyCols> Col4 </EmptyCols>
</Assigment>
</Assigments>
</Employee>
</Employees>
</Filial>
<Filial id="2">
<Employees>
<Employee id="12">
<Assigments>
<Assigment id="1" name="Team Lead">
<EmptyCols> Col1 Col2 Col5 </EmptyCols>
</Assigment>
<Assigment id="2" name="Developer">
<EmptyCols> Col5 </EmptyCols>
</Assigment>
</Assigments>
</Employee>
<Employee id="21">
<Assigments>
<Assigment id="1" name="Team Lead">
<EmptyCols> Col5 </EmptyCols>
</Assigment>
</Assigments>
</Employee>
</Employees>
</Filial>
</Filials>
View1 has data
Fil_id
empl_id
assigment_id
Assigment_name
EmptyCols
1
1
1
Team Lead
Col1
1
1
1
Team Lead
Col2
1
1
1
Team Lead
Col5
1
1
2
Developer
Col5
1
2
1
Team Lead
Col2
1
2
1
Team Lead
Col5
Here SQL
SELECT 1 as Fil_id,1 as empl_id, 1 as assigment_id, 'Team Lead' as Assigment_Name, 'Col1' as EmptyCols
UNION ALL
SELECT 1 as Fil_id,1 as empl_id, 1 as assigment_id, 'Team Lead' as Assigment_Name, 'Col2' as EmptyCols
UNION ALL
SELECT 1 as Fil_id,1 as empl_id, 1 as assigment_id, 'Team Lead' as Assigment_Name, 'Col5' as EmptyCols
UNION ALL
SELECT 1 as Fil_id,1 as empl_id, 2 as assigment_id, 'Developer' as Assigment_Name, 'Col5' as EmptyCols
UNION ALL
SELECT 1,2,1,'Team Lead','Col2'
UNION ALL
SELECT 1,2,1,'Team Lead','Col5'
UNION ALL
SELECT 1,2,2,'Developer','Col4'
UNION ALL
SELECT 2,12,1,'Team Lead','Col1'
UNION ALL
SELECT 2,12,1,'Team Lead','Col2'
UNION ALL
SELECT 2,12,1,'Team Lead','Col5'
UNION ALL
SELECT 2,12,2,'Developer','Col5'
UNION ALL
SELECT 2,21,1,'Team Lead','Col5'
im trying to write correct FOR XML PATH but without success.
SELECT
c.fil_id as '@ID',
SELECT e.empl_id as '@id',
SELECT Assigment_id as '@id',
Assigment_name as '@name',
STUFF((
SELECT ', '+EmptyCols as 'data()' FROM view1 f
WHERE f.fil_id = j.fil_id and f.empl_id = j.empl_id and f.assigment_id = j.assigment_id
FOR XML PATH(''),TYPE
).value('.','NVarchar(max)'),1,2,'') as EmptyCols
FROM
SELECT DISTINCT EMPL_id,fil_id,assigment_id,assigment_name FROM view1
) j
WHERE j.fil_id = c.fil_id and j.empl_id = e.empl_id
FROM
SELECT DISTINCT EMPL_id,fil_id FROM view1
) e
WHERE e.fil_id = c.fil_id
FOR XML PATH('Employee'),type
) as 'Employees'
FROM
SELECT DISTINCT FIL_ID FROM view1 c
) c
FOR XML PATH('Filial'), elements, root('Filials')
But get error
Msg 116, Level 16, State 1, Line 19
Only one expression can be specified in the select list when the subquery is not introduced with EXISTS.

Answer 1

E.g.
DECLARE @Sample TABLE
Fil_id INT ,
empl_id INT ,
assigment_id INT ,
Assigment_Name NVARCHAR(255) ,
EmptyCols NVARCHAR(255)
INSERT INTO @Sample
VALUES ( 1, 1, 1, 'Team Lead', 'Col1' ),
( 1, 1, 1, 'Team Lead', 'Col2' ),
( 1, 1, 1, 'Team Lead', 'Col5' ),
( 1, 1, 2, 'Developer', 'Col5' ),
( 1, 2, 1, 'Team Lead', 'Col2' ),
( 1, 2, 1, 'Team Lead', 'Col5' ),
( 1, 2, 2, 'Developer', 'Col4' ),
( 2, 12, 1, 'Team Lead', 'Col1' ),
( 2, 12, 1, 'Team Lead', 'Col2' ),
( 2, 12, 1, 'Team Lead', 'Col5' ),
( 2, 12, 2, 'Developer', 'Col5' ),
( 2, 21, 1, 'Team Lead', 'Col5' );
SELECT F.Fil_id AS [@id] ,
( SELECT E.empl_id AS [@id] ,
( SELECT A.assigment_id AS [@id] ,
A.Assigment_Name AS [@name] ,
STUFF(( SELECT ', ' + C.EmptyCols
FROM @Sample C
WHERE A.Fil_id = C.Fil_id
AND A.empl_id = C.empl_id
AND A.assigment_id = C.assigment_id
FOR XML PATH('')
), 1, 2, '') AS [EmptyCols]
FROM @Sample A
WHERE A.Fil_id = E.Fil_id
AND A.empl_id = E.empl_id
GROUP BY A.Fil_id ,
A.empl_id ,
A.assigment_id ,
A.Assigment_Name
FOR XML PATH('Assignment') , ROOT('Assignments') , TYPE
FROM @Sample E
WHERE E.Fil_id = F.Fil_id
GROUP BY E.Fil_id ,
E.empl_id
FOR XML PATH('Employee') , ROOT('Employees') , TYPE
FROM @Sample F
GROUP BY F.Fil_id
FOR XML PATH('Filial') , ROOT('Filials');