試圖加入2個查詢碧玉報告

我想有一個像這樣的表：試圖加入2個查詢碧玉報告

Manager  Expert   Adminis. Staff 
Dept  A.P. | C.P.  A.P. | C.P.  A.P. | C.P. 
Management  1 1  1 0    1 1 
Accounting  1 1  1 1    0 0 
IT    1 1  2 1    0 0

A.P. =招聘職位數 C.P。 =當前位置號

A.P.來自表命名位置：

[Positions](
    [id] [numeric](19, 0) IDENTITY(1,1) NOT NULL, 
    [NumOfAvailablePositions] [int] NULL, 
    [PositionType] [varchar](255) NULL, 
    [DepartmentId] [numeric](19, 0) NULL 
    )

和C.P。從標題表Title_Names的計數：

[Title](
    [id] [numeric](19, 0) IDENTITY(1,1) NOT NULL, 
    [Title_Name] [varchar](50) NOT NULL,  
    [Department_Id] [numeric](19, 0) NULL, 
    [Position_Type] [varchar](255) NULL, 
    )

綜上所述，我想有這兩個查詢的結果：

SELECT DepartmentId, PositionType, NumOfAvailablePositions 
FROM Positions 

SELECT Department_Id, Position_Type, Count (Position_Type) as CurrentPositions 
FROM Title group by Department_Id, Position_Type

，並加入一個表（如上所述）的結果。

我試着用下面的腳本連接表：

SELECT Department_Id, PositionType, Count(Position_Type) as PositionCountTitle, Positions.DepartmentId, Positions.NumOfAvailablePositions 
FROM Title, Positions 
GROUP BY Position_Type, Department_Id, Positions.DepartmentId, Positions.NumOfAvailablePositions 
HAVING Title.Department_Id = Positions.DepartmentId

但它產生錯誤的結果。 Jasper IReports有什麼建議可以解決這個問題嗎？

來源

2012-07-03 lamostreta

嘗試更換您的FROM Title, Positions與

FROM Title INNER JOIN Positions ON Title.[Position_Type]=Positions.[Position_Type]

來源

2012-07-03 14:42:57

感謝您的回覆。但它沒有產生相同的結果，它沒有計算Position_Type – lamostreta

對不起，我不知道我昨天做了什麼錯誤，但我現在再次嘗試您的查詢它的工作原理！非常感謝。 – lamostreta

可能有辦法使用子查詢與做出來的，但我發現它通常在得到你的頭周圍的查詢的第一步。

SELECT title.Department_Id, 
     (SELECT NumOfAvailablePositions FROM POSITIONS WHERE Department_Id = position.Department_Id AND PositionType = 'Expert') as expert_ap, 
     (SELECT COUNT(*) FROM Title WHERE Department_Id = title.Department_Id AND PositionType = 'Expert') as expert_cp, 
     (SELECT NumOfAvailablePositions FROM POSITIONS WHERE Department_Id = position.Department_Id AND PositionType = 'Adminis. Staff') as admin_ap, 
     (SELECT COUNT(*) FROM Title WHERE Department_Id = title.Department_Id AND PositionType = 'Adminis. Staff') as admin_cp, 
     (SELECT NumOfAvailablePositions FROM POSITIONS WHERE Department_Id = position.Department_Id AND PositionType IS NULL) as rest_ap, 
     (SELECT COUNT(*) FROM Title WHERE Department_Id = title.Department_Id AND PositionType IS NULL) as rest_cp, 
FROM Title title, Positions position 
WHERE Title.Department_Id = Positions.DepartmentId

沒有與此查詢的固有問題，但如果職位表有標題表沒有，它永遠不會在查詢中返回一個部門。如果這不是你的情況，那麼這不是問題。

來源

2012-07-03 14:50:53

感謝您的回答。但它沒有產生正確的結果.. – lamostreta

試圖加入2個查詢碧玉報告

回答

相關問題