Question

我有一个表（帐户），如：

ACC_ID   Description   ID_1         ID_2       ID_3     ID_4         AMOUNT
100070   INFO1                                                       1236.90
100150   INFO2                                                       1000.00
100170   INFO3                                                       2876.15
100180   INFO4                                                       3549.20
100360   INFO5         100001       100360                           NULL
110080   INFO6                                                       NULL
300010   INFO7                                                       -1418.74
300015   INFO8         100070       300015     400000   710000       NULL
400000   INFO9                                                       NULL                                    
400090   INFO10                                                      1245.00
700500   INFO11        400000       700500                           NULL

我要做的是在金额为空且IDS具有值时对金额求和，IDS中存储的值表示要指定的开始和结束（范围）。

请记住，新列将被称为Total，输出将类似于=

ACC_ID      Description      Amount        Total
100070      INFO1            1236.90
100150      INFO2            1000.00
100170      INFO3            2876.15
100180      INFO4            3549.20
100360      INFO5            NULL          8662.25
110080      INFO6            NULL
300010      INFO7            -1418.74
300015      INFO8            NULL          8488.51
400000      INFO9            NULL
400090      INFO10           1245.00
400090      INFO11           NULL          1245.00

注意：当“金额”为null且“所有ID”具有指定的值范围时，则公式将类似于： SUM（ID_1，ID_2）+ SUM（ID_3，ID_4）

这是我正在使用的SQL代码，但无法正常工作，当有4个带有值的ID时，甚至不包含公式。

SELECT ACC_ID, Description, Amount, CASE 
WHEN Amount IS NULL THEN CASE 
          WHEN ACC_ID BETWEEN ID_1 AND ID_2 THEN SUM(Amount)
END 
ELSE Amount
END TOTAL FROM CTE GROUP BY ACC_ID,Amount,Description,ID_1,ID_2 ORDER BY 
ACC_ID

任何帮助或帮助都将不胜感激。

Answer 1

我认为您需要窗口功能：

SELECT ACC_ID, Description, Amount,
       (CASE WHEN Amount IS NULL AND (ID_1 IS NOT NULL OR ID_2 IS NOT NULL OR ID_3 IS NOT NULL OR ID_4 IS NOT NULL)
             THEN SUM(Amount) OVER (ORDER BY ACC_ID)
        END) as Total
FROM CTE 
ORDER BY ACC_ID;

Answer 2

SELECT ACC_ID, Description, Amount, 
(CASE WHEN Amount IS NULL THEN
    CASE WHEN ID_1 !='' AND ID_2 !='' AND ID_3 ='' THEN
            (SELECT SUM(Amount)
            FROM CTE
            WHERE ACC_ID <= x.ID_2 and ACC_ID >= x.ID_1)
         WHEN ID_1 !='' AND ID_2 !='' AND ID_3 !='' AND ID_4 !='' THEN
            (SELECT SUM(Amount)
            FROM CTE
            WHERE ACC_ID <= x.ID_2 and ACC_ID >= x.ID_1 OR ACC_ID >= x.ID_3 and ACC_ID <= x.ID_4)
    END
 END) AS Total
FROM CTE x
ORDER BY ACC_ID;

另一种经过验证的版本，要求同时使用ID_1和ID_2或1/2和3/4

http://sqlfiddle.com/#!9/b2ed80/6

选择ID范围之间的总和SQL Server

2 个答案: