Question

我在运行/配置Microsoft SQL Server查询时遇到问题，查询如下：

SELECT
    ps.WeekIncluded AS PaidWeeks,
    PayD.PayDate AS PayDates,
    ps.PayYear AS PYear, 
    months.PMonth,
    (SELECT sum(DayPay) FROM Shifts GROUP BY WeekNumber)
FROM dbo.PayStructure ps
JOIN dbo.Months Months 
ON ps.MonthID = months.ID
JOIN dbo.PayDates PayD ON ps.MonthID = PayD.MonthID
Group BY ps.MonthID

这是尝试做的，是使用三个表创建一个视图（不包含在代码段中），包括选择Shifts和GroupBy中的DayPay总和，以便稍后加入并按周数连接到指定月份的周数。不幸的是我得到了：

专栏＆＃39; dbo.PayStructure.WeekIncluded＆＃39;在选择列表中无效因为它不包含在聚合函数或 GROUP BY子句。

＆安培;使用：

SELECT
    ps.WeekIncluded AS PaidWeeks,
    PayD.PayDate AS PayDates,
    ps.PayYear AS PYear, 
    months.PMonth,
    (SELECT sum(DayPay) FROM Shifts)
FROM dbo.PayStructure ps
JOIN dbo.Months Months 
ON ps.MonthID = months.ID
JOIN dbo.PayDates PayD ON ps.MonthID = PayD.MonthID

返回：

Sucessful Query, Wrong results

每个被选中的人都等于： 60.36 我想要获得的是：

Janurary - Null
     2月 - Null

三月 - Null
     4月 - Null

May - Null

六月 - Null
     7月 - Null

八月 - Null

9月 - 60.36
     10月 - Null

12月 - Null

因为没有数据输入这些周数/月而无需11/12个月

如被问及。的 Dbo.Shifts

Dbo.PayStructure

Dbo.Months

尝试：

    SELECT
     ps.WeekIncluded AS PaidWeeks, 
     PayD.PayDate AS PayDates,
     ps.PayYear AS PYear,
       SUM(Sh.DayPay) 
FROM   dbo.PayStructure ps
       LEFT JOIN dbo.Months Months 
         ON ps.MonthID = months.ID
       LEFT JOIN dbo.PayDates PayD
         ON ps.MonthID = PayD.MonthID
        LEFT JOIN dbo.Shifts Sh
         ON Sh.WeekNumber = ps.WeekIncluded
GROUP  BY Sh.WeekNumber

Answer 1

SELECT
ps.WeekIncluded AS PaidWeeks,
PayD.PayDate AS PayDates,
ps.PayYear AS PYear, 
months.PMonth,
SumPay
FROM dbo.PayStructure ps
JOIN dbo.Months Months 
ON ps.MonthID = months.ID
JOIN dbo.PayDates PayD ON ps.MonthID = PayD.MonthID
LEFT JOIN 
(SELECT S. WeekNumber,
            PSI.MonthId,
            PSI.PayYear,
            sum(DayPay) AS SumPay
FROM Shifts S
JOIN dbo.PayStrycture PSI
ON S.WeekNumber = PSI.WeekIncluded
AND YEAR(S.ShiftDate) = PSI.PayYear
JOIN dbo.Months M
ON PSI.MonthId = M.ID
GROUP BY S. WeekNumber,
            PSI.MonthId,
            PSI.PayYear
) T
ON PS.MonthId = T.MonthId
AND PS.PayYear = T.PayYear
AND PS.WeekIncluded = T.WeekNumber

Answer 2

错误信息相当清楚; SQL Server无法从您的查询中知道WeekIncluded的哪个值可能包含您查询的结果集。您可以自己考虑一下 - 输出中每月会有一行，而WeekIncluded值会有一个“插槽”。应该展示哪一个？

尝试运行这样的查询：

SELECT
    MIN(ps.WeekIncluded) AS FromWeek,
    MAX(ps.WeekIncluded) AS ToWeek,
    . . .

你应该更好地了解正在发生的事情。

其他几个引擎包含一个名为group_concat的额外聚合函数来处理这种查询，但SQL Server很难在这样的聚合中汇总以逗号分隔的值列表。< / p>

Answer 3

任何不聚合的SELECTed列（例如SUM（）或COUNT（））都必须包含在GroupBy中，否则查询将无法执行。

所以：

SELECT
ps.WeekIncluded AS PaidWeeks,
PayD.PayDate AS PayDates,
ps.PayYear AS PYear, 
months.PMonth,
(SELECT sum(DayPay) FROM Shifts GROUP BY WeekNumber)
FROM dbo.PayStructure ps
JOIN dbo.Months Months 
ON ps.MonthID = months.ID
JOIN dbo.PayDates PayD ON ps.MonthID = PayD.MonthID
Group BY ps.MonthID,ps.WeekIncluded,PayD.PayDate,months.PMonth

无法在Microsoft SQL Server中运行查询

3 个答案: