1

我正在尝试使用这四个简化表编写查询：

组织
(pk) OrganizationID
OrganizationName
(fk) ParentOrganizationID

人员
(pk) 人员
ID (fk) 组织 ID
名称

事件
(pk)事件
ID事件名称

EventLog
(pk) PersonnelID
(pk) EventID
TimeOfParticipation

我想创建一个以 eventID 和 organizationID 作为参数的查询，并返回一个表，该表返回组织的所有名称、组织和子组织中的总数以及组织的事件参与者总数这是孩子们。一个示例返回可能是：

OrganizationName   | TotalNumberInOrganization | TotalParticipatingInEvent  
TopOrganization    |         200               |            150      
 SecondTier1       |         150               |            100 
  Tier1Child       |          50               |             50
  Tier1Child2      |          50               |             25
 SecondTier2       |          25               |             25

顶级组织是其所有子组织 SecondTier1 和 SecondTier2 及其自身的总和。SecondTier1 是它的所有孩子 Teir1Child 和 Tier1Child2 以及它自己的总和。这将继续计算所有的孩子和总数。

我知道如何使用递归 CTE 仅返回一个条目，例如仅返回顶级组织的总数，但我不确定如何获取所有组织及其子项的总数。任何帮助，将不胜感激。

这里要求的是我用来返回有关组织的单行的过程。

出于某种原因，如果我在 UNION 中添加“U”，它会给我一个网络错误，并且不会让我编辑它。

@OrganizationID uniqueidentifier
@EventID uniqueidentifier

WITH OrganizationList(OrganizationID) AS
    (SELECT Organization.OrganizationID
    FROM Organization
    WHERE OrganizationID = @OrganizationID
    NION ALL
    SELECT Organization.OrganizationID
    FROM Organization 
    INNER JOIN OrganizationList ON Organization.ParentOrganizationID = OrganizationList.OrganizationID)

SELECT OrganizationAbbreviation,

       (SELECT COUNT(*)
        FROM Personnel
        WHERE Personnel.OrganizationID IN (SELECT OrganizationID FROM OrganizationList))
        AS OrganizationTotal,

        (SELECT COUNT(*)
         FROM Personnel 
         INNER JOIN EventLog ON EventLog.PersonnelID = Personnel.PersonnelID
         WHERE Personnel.OrganizationID IN (SELECT OrganizationID FROM OrganizationList)
               AND EventLog.EventID = @EventID)
         AS TotalPresent
FROM Organization
WHERE OrganizationID = @OrganizationID
4

1 回答 1

2

我认为这对你有用：

WITH OrganizationTree (RootOrganizationID, OrganizationID)
AS
(
--Anchor
    SELECT  O.OrganizationID, O.OrganizationID
    FROM    Organization O
    UNION ALL
--Recurse
    SELECT  T.RootOrganizationID, O.OrganizationID
    FROM    OrganizationTree T
    JOIN    Organization O
        ON  O.ParentOrganizationId = T.OrganizationID
)
--execute
SELECT  P.OrganizationName, 
        SUM(ISNULL(PPL.NumberInOrganization, 0)) AS TotalNumberInOrganization, 
        SUM(ISNULL(EVT.NumberParticipatingInEvent, 0)) AS TotalNumberParticipatingInEvent
FROM    OrganizationTree T
JOIN    Organization P
        ON T.RootOrganizationID = P.OrganizationID
LEFT
JOIN    
(
        SELECT  P.OrganizationID, 
                COUNT(*) AS NumberInOrganization
        FROM    Personnel P
        GROUP BY P.OrganizationID
) PPL
        ON  PPL.OrganizationID = T.OrganizationID
LEFT
JOIN
(
        SELECT  P.OrganizationID,
                COUNT(*) AS NumberParticipatingInEvent
        FROM    EventLog EL
        JOIN    Personnel P
                ON  EL.PersonnelID = P.PersonnelID
        GROUP BY P.OrganizationID
) EVT
        ON  EVT.OrganizationID = T.OrganizationID
GROUP BY T.RootOrganizationID, P.OrganizationName

如果您需要像示例输出中那样缩进，那么这应该可以工作：

WITH OrganizationTree (RootOrganizationID, OrganizationID)
AS
(
--Anchor
    SELECT  O.OrganizationID, O.OrganizationID
    FROM    Organization O
    UNION ALL
--Recurse
    SELECT  T.RootOrganizationID, O.OrganizationID
    FROM    OrganizationTree T
    JOIN    Organization O
        ON  O.ParentOrganizationId = T.OrganizationID
)
--execute
SELECT  SPACE(L.OrganizationLevel) + P.OrganizationName AS FormattedOrganizationName,
        P.OrganizationName, 
        SUM(ISNULL(PPL.NumberInOrganization, 0)) AS TotalNumberInOrganization, 
        SUM(ISNULL(EVT.NumberParticipatingInEvent, 0)) AS TotalNumberParticipatingInEvent
FROM    OrganizationTree T
JOIN    
(
        SELECT  L.OrganizationID,
                (COUNT(*) - 1) AS OrganizationLevel
        FROM    OrganizationTree L
        GROUP BY L.OrganizationID
) L
    ON  T.RootOrganizationID = L.OrganizationID
JOIN    Organization P
        ON T.RootOrganizationID = P.OrganizationID
LEFT
JOIN    
(
        SELECT  P.OrganizationID, 
                COUNT(*) AS NumberInOrganization
        FROM    Personnel P
        GROUP BY P.OrganizationID
) PPL
        ON  PPL.OrganizationID = T.OrganizationID
LEFT
JOIN
(
        SELECT  P.OrganizationID,
                COUNT(*) AS NumberParticipatingInEvent
        FROM    EventLog EL
        JOIN    Personnel P
                ON  EL.PersonnelID = P.PersonnelID
        GROUP BY P.OrganizationID
) EVT
        ON  EVT.OrganizationID = T.OrganizationID
GROUP BY T.RootOrganizationID, L.OrganizationLevel, P.OrganizationName
于 2011-03-25T15:55:40.427 回答