Question

查询＃1：

SELECT a.*  
INTO #TempTable1 
FROM
    (SELECT 
         Vendor,
         CASE WHEN CONVERT(varchar(50), DateModified, 101)='01/01/1900' THEN '' ELSE CONVERT(varchar(50), DateModified, 101) END AS 'Date of Last Check', 
         CASE WHEN CONVERT(varchar(50), PaycommissionDate, 101)='01/01/1900' THEN '' ELSE CONVERT(varchar(50), PaycommissionDate, 101) END AS 'Date of check for month',
         SUM([Original $ Total]) 'Amount'
     FROM
         Tbl_Commission_Reconcilation  
     WHERE
         Vendor IS NOT NULL
         AND MONTH([Order Date]) = MONTH (GETDATE())
     GROUP BY
         Tbl_Commission_Reconcilation.Vendor,
         CONVERT(varchar(50), DateModified, 101),
         [Sales Rep], PaycommissionDate) a

输出：

Vendor              Date of Last Check   Date of check for month       Amount
-----------------------------------------------------------------------------
Boston Warehouse    12/12/2017            12/12/2017                   919.00
Woodlink            12/12/2017            12/12/2017                   979.86

查询＃2：

SELECT b.*  
INTO #TempTable2  
FROM
    (SELECT 
         [Sales Rep],
         SUM([Commission $ paid]) 'Commission $ paid'
     FROM 
         Tbl_Commission_Reconcilation  
     WHERE 
         Vendor IS NOT NULL
         AND MONTH([Order Date]) = MONTH (GETDATE())
     GROUP BY 
         [Sales Rep]) b

输出2：

Sales Rep       Commission $ paid
---------------------------------
Tammy Hanson    379.77

最终查询：

select * 
from #TempTable1, #TempTable2

最终输出：

Vendor      DateofLastCheck Dateofcheckformonth Amount  Sales Rep      Commpaid
Boston 
Warehouse   12/12/2017     12/12/2017          919.00   Tammy Hanson    379.77
Woodlink    12/12/2017     12/12/2017          979.86   Tammy Hanson    379.77

输出2显示只有一个佣金为Tammy Hanson支付379.77。但在最终输出显示2次佣金支付379.77。如何纠正这个问题？如何只显示最终输出中支付的佣金？请任何人帮助我。

Answer 1

您将获得重复值，因为您在此处使用交叉连接（笛卡尔积）。请指定至少1个条件以匹配两个表中的记录，以便仅显示所需记录的值。

根据您当前的查询，它将返回两个表中所有可能的行组合。像这样改变它

select * from #TempTable1 T1,#TempTable2  T2 WHERE T1.ColumnName = T2.ColumnName

或者你也可以说

select * from #TempTable1 T1
inner join #TempTable2  T2 
WHERE T1.ColumnName = T2.ColumnName

- 如果您想要在两个表上都有匹配的记录

或

select * from #TempTable1 T1
    left join #TempTable2  T2 
    WHERE T1.ColumnName = T2.ColumnName

- 如果你想要来自＃TempTable1的记录，如果没有匹配的记录则显示为TempTable2的空白

Answer 2

看来你可以只做一个查询。较大的查询已经在group by子句中有[sales rep]，那么为什么不只是将佣金加起来？

SELECT
      a.* INTO #TempTable1
FROM (
      SELECT
            Vendor
          , CASE WHEN CONVERT(varchar(50), DateModified, 101) = '01/01/1900' THEN '' ELSE CONVERT(varchar(50), DateModified, 101) END
            AS 'Date of Last Check'
          , CASE WHEN CONVERT(varchar(50), PaycommissionDate, 101) = '01/01/1900' THEN '' ELSE CONVERT(varchar(50), PaycommissionDate, 101) END
            AS 'Date of check for month'
          , SUM([Original $ Total]) 'Amount'
          , [Sales Rep]
          , SUM([Commission $ paid]) 'Commission $ paid'
      FROM Tbl_Commission_Reconcilation
      WHERE Vendor IS NOT NULL
      AND MONTH([Order Date]) = MONTH(GETDATE())
      GROUP BY
            Tbl_Commission_Reconcilation.Vendor
          , CONVERT(varchar(50), DateModified, 101)
          , [Sales Rep]
          , PaycommissionDate
) a

Answer 3

您还应该在查询中添加row_number

表1

SELECT a.*  
INTO #TempTable1 
FROM
    (SELECT 
         Vendor,
         CASE WHEN CONVERT(varchar(50), DateModified, 101)='01/01/1900' THEN '' ELSE CONVERT(varchar(50), DateModified, 101) END AS 'Date of Last Check', 
         CASE WHEN CONVERT(varchar(50), PaycommissionDate, 101)='01/01/1900' THEN '' ELSE CONVERT(varchar(50), PaycommissionDate, 101) END AS 'Date of check for month',
         SUM([Original $ Total]) 'Amount',
         ROW_NUMBER() OVER(ORDER BY Vendor, DateModified, [Sales Rep]) RN
     FROM
         Tbl_Commission_Reconcilation  
     WHERE
         Vendor IS NOT NULL
         AND MONTH([Order Date]) = MONTH (GETDATE())
     GROUP BY
         Tbl_Commission_Reconcilation.Vendor,
         CONVERT(varchar(50), DateModified, 101),
         [Sales Rep], PaycommissionDate) a

表2

SELECT b.*  INTO #TempTable2  
    from
    (SELECT [Sales Rep],SUM([Commission $ paid]) 'Commission $ paid',
        ROW_NUMBER() OVER(ORDER BY [Sales Rep]) RN
    from Tbl_Commission_Reconcilation  where Vendor is not null and Month([Order Date])= MONTH (Getdate())
    group by [Sales Rep])b

并且还使用此RN列连接table1和table2

select 
  *
from #TempTable1 t1
    LEFT JOIN #TempTable2 t2
ON t1.RN = t2.RN

SQL Server中的Temptable

3 个答案: