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SQL Server - CTE Recursive SUM value from another table

I have a table with data stored hierarchically in a table called CsOrganization , as in the following table.

Table Name : CsOrganization
OrgId   OrgParentId    OrgName
1       NULL           X COMPANY
2       1              Administrator
3       2              Adm 1
4       2              Adm 2
5       3              Adm 1_1

And then there is a table called EmHisOrganization , which refers to the CsOrganization table , as in the following table.

Table Name : EmHisOrganization
EmpId   OrgId    
1       2          
2       2        
3       3       
4       4        
5       5

Each employee will have overtime data based on the organization they have, and they are stored in the EmOvertime table .

Table Name : EmOvertime
EmpId   TotalOtReal    
1       1.00          
2       2.00        
3       3.00       
4       2.00        
5       1.00

, TotalHours . TotalHours TotalHours. , , TotalHours . , , TotalHours, , , CTE Recursive OUTER JOIN . , , :

Desired Output
OrgId      OrgName       TotalHours    
1          X COMPANY     9.00
2          Administrator 9.00
3          Adm 1         4.00 
4          Adm 2         2.00
5          Adm 1_1       1.00

, TotalHours Adm 1 Employee ID 3, 3,00 TotalHours Employee 5, 1,00 TotalHours, 4,00 . , OrgId 1 2 9,00 TotalHours.

.

09/05/2016, 12.02, ​​ .

: .

( 0,001, , where ):

With OrgTree (OrgId, OrgName, TotalHours) AS
(
SELECT      orgId, orgN, SUM(eReal) AS TotalHours
FROM        (SELECT OrgId AS orgId, OrgName AS orgN, CASE WHEN x.TotalOtReal IS NULL THEN 0 ELSE x.TotalOtReal END AS eReal
FROM        (SELECT f.OrgId, f.OrgName, o.TotalOtReal
FROM        dbo.CsOrganization AS f LEFT OUTER JOIN
(SELECT     OrgId, SUM(TotalOtReal) AS TotalOtReal
FROM        (SELECT a.EmpId, a.OrgId, b.TotalOtReal
FROM        dbo.EmHisOrganization AS a LEFT OUTER JOIN
(SELECT     EmpId, SUM(TotalOtReal) AS TotalOtReal
FROM        dbo.EmOvertime AS a
GROUP BY EmpId) AS b ON a.EmpId = b.EmpId) AS a_1
GROUP BY OrgId) AS o ON f.OrgId = o.OrgId
) AS x WHERE OrgId = 1) AS xx
GROUP BY orgId, orgN

UNION ALL
SELECT a.OrgId, a.OrgName, TotalHours FROM dbo.CsOrganization a
INNER JOIN OrgTree o ON a.OrgParentId = o.OrgId
)
SELECT a.OrgId, a.OrgName, SUM(a.TotalHours) AS TotalHours FROM OrgTree a
GROUP BY a.OrgId, a.OrgName
+4
2

DECLARE @CsOrganization TABLE (OrgId int, OrgParentId int, OrgName nvarchar(50));
INSERT INTO @CsOrganization (OrgId, OrgParentId, OrgName) VALUES
(1, NULL, 'X COMPANY'),
(2, 1   , 'Administrator'),
(3, 2   , 'Adm 1'),
(4, 2   , 'Adm 2'),
(5, 3   , 'Adm 1_1');

DECLARE @EmHisOrganization TABLE (EmpId int, OrgId int);
INSERT INTO @EmHisOrganization (EmpId, OrgId) VALUES
(1, 2),
(2, 2),
(3, 3),
(4, 4),
(5, 5);

DECLARE @EmOvertime TABLE (EmpId int, TotalOtReal float);
INSERT INTO @EmOvertime (EmpId, TotalOtReal) VALUES
(1, 1.00),
(2, 2.00),
(3, 3.00),
(4, 2.00),
(5, 1.00);

Query

  • CTE_OrgHours .
  • CTE_Recursive - CTE, .
  • SELECT , node () .

, CTE-by-CTE , , .

WITH
CTE_OrgHours
AS
(
    SELECT
        Org.OrgId
        ,Org.OrgParentId
        ,Org.OrgName
        ,ISNULL(SUM(Overtime.TotalOtReal), 0) AS SumHours
    FROM
        @CsOrganization AS Org
        LEFT JOIN @EmHisOrganization AS Emp ON Emp.OrgId = Org.OrgID
        LEFT JOIN @EmOvertime AS Overtime ON Overtime.EmpId = Emp.EmpId
    GROUP BY
        Org.OrgId
        ,Org.OrgParentId
        ,Org.OrgName
)
,CTE_Recursive
AS
(
    SELECT
         CTE_OrgHours.OrgId
        ,CTE_OrgHours.OrgParentId
        ,CTE_OrgHours.OrgName
        ,CTE_OrgHours.SumHours
        ,1 AS Lvl
        ,CTE_OrgHours.OrgId AS StartOrgId
        ,CTE_OrgHours.OrgName AS StartOrgName
    FROM CTE_OrgHours

    UNION ALL

    SELECT
         CTE_OrgHours.OrgId
        ,CTE_OrgHours.OrgParentId
        ,CTE_OrgHours.OrgName
        ,CTE_OrgHours.SumHours
        ,CTE_Recursive.Lvl + 1 AS Lvl
        ,CTE_Recursive.StartOrgId
        ,CTE_Recursive.StartOrgName
    FROM
        CTE_OrgHours
        INNER JOIN CTE_Recursive ON CTE_Recursive.OrgId = CTE_OrgHours.OrgParentId
)
SELECT
    StartOrgId
    ,StartOrgName
    ,SUM(SumHours) AS TotalHours
FROM CTE_Recursive
GROUP BY
    StartOrgId
    ,StartOrgName
ORDER BY StartOrgId;


+------------+---------------+------------+
| StartOrgId | StartOrgName  | TotalHours |
+------------+---------------+------------+
|          1 | X COMPANY     |          9 |
|          2 | Administrator |          9 |
|          3 | Adm 1         |          4 |
|          4 | Adm 2         |          2 |
|          5 | Adm 1_1       |          1 |
+------------+---------------+------------+
+2

Nestet Sets patern (wiki)?

OrgId   LeftIndex RightIndex    OrgName
1       1         10            X COMPANY
2       2         9             Administrator
3       3         6             Adm 1
4       7         8             Adm 2
5       4         5             Adm 1_1

SELECT O.OrgId, (SELECT Sum(EO.TotalHours)
   FROM CsOrganization CO
   INNER JOIN EmHisOrganization AS EHO ON CO.OrgId=EHO.OrgID
   INNER JOIN EmOvertime AS EO ON EHO.EmpId=EO.EmpId
   WHERE CO.LeftInde>=O.LeftIndex AND CO.RightIndex<=O.RightIndex) AS TotalHours
FROM CsOrganization O
0

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