Question

我希望从[data_sekolah]表到[data_baru]表的复制数据[jumlah siswa]和[{1}}函数（列[jumlah siswa]按列[class]和[date]汇总）

我试过了这个查询

sum

我收到错误：

聚合可能不会出现在UPDATE语句的集合列表中。

如果我没有使用update [data_baru] set [jumlah siswa]= SUM(DS.[jumlah siswa]) from [data_baru] DB inner join [data_sekolah] DS on DB.[class] = DS.[class] and month(DB.[Date]) = month(DS.[Date])函数，我可以按sum表

上的类和日期从列jumlah siswa中排名前1

Answer 1

使用以下查询：

UPDATE [data_baru] 
SET [jumlah siswa]= (SELECT SUM(DS.[jumlah siswa] 
                     FROM [data_sekolah] DS 
                     WHERE DB.[class]=DS.[class] 
                     AND month(DB.[Date]) = month(DS.[Date])
       FROM [data_baru] DB

https://support.microsoft.com/en-us/kb/90477

Answer 2

UPDATE  Process_Master
SET     cnt = a.ct
FROM    Process_Master
        INNER JOIN ( SELECT dbo.Process_Master.Process_Id ,
                            sum(1) AS ct
                     FROM   dbo.Employee_Process
                            INNER JOIN dbo.Process_Master ON dbo.Employee_Process.Process_Id = dbo.Process_Master.Process_Id
                     GROUP BY dbo.Process_Master.Process_Id
                   ) AS a ON Process_Master.Process_Id = a.Process_Id

Answer 3

以下查询应该可以解决问题！

UPDATE  DB  
SET     [jumlah siswa] = DS.Sum_jumlah_siswa  
FROM    [data_baru] AS DB  
CROSS APPLY  
    (   SELECT SUM(DS.[jumlah siswa]) AS Sum_jumlah_siswa   
        FROM [data_sekolah] AS DS   
        WHERE DB.[class]=DS.[class]   
            AND month(DB.[Date]) = month(DS.[Date])   
    ) AS DS

Answer 4

尝试使用以下查询..

      update DB
      set [jumlah siswa]=  SUM_jumlah siswa
      FROM [data_baru] DB
       INNER JOIN
         ( Select class,month([Date]) Month
             ,SUM([jumlah siswa]) SUM_jumlah siswa
           From  [data_sekolah]
          Group by class,month([date]) ) DS 
         ON DB.[class]=DS.[class] 
             and month(DB.[Date]) =DS.Month)

Answer 5

试试这个：

UPDATE DB SET [jumlah siswa]= t.tot
FROM [data_baru] DB
OUTER APPLY (SELECT SUM(DS.[jumlah siswa]) tot FROM [data_sekolah] DS 
WHERE DB.[class]=DS.[class] AND MONTH(DB.[Date]) = MONTH(DS.[Date]) 
GROUP BY DS.[class], MONTH(DS.[Date])) t

Answer 6

首先对组进行求和（匹配条件）

;    with temp as (
                    select DB.[class] as class , month(DB.[Date]) as date  ,
                    SUM(DS.[jumlah siswa]) as sum_jumlahsiswa
                    from [data_sekolah] DS group by DB.[class], month(DB.[Date])
         )

         update [data_baru] set [jumlah siswa] =sum_jumlahsiswa
            FROM [data_baru] DB
           INNER JOIN temp DS ON DB.[class]=DS.[class] and DB.[Date] = month(DS.[Date] )

如何用sum函数更新另一个表的表？

6 个答案: