无法使用group by获得正确的SUM

Question

我一直试图获得TotalCharge，TotalCost和Total Estimated hours。

虽然我的脚本中没有错误，但有些错误我无法获得上述列的总数。

我的脚本如下：

SELECT
  l.LaborName,
  l.EstimatedHours,
  l.TotalCost,
  l.TotalCharge,
  w.CurrencySymbol,
  SUM(l.TotalCost) AS totalCost,
  SUM(l.TotalCharge) AS totalCharge,
  SUM(l.EstimatedHours) AS totalHours
FROM WOLabor l
INNER JOIN WO w
  ON l.WOPK = w.WOPK
WHERE l.WOPK = 10100
AND RecordType = 1
GROUP BY l.LaborName,
         l.EstimatedHours,
         l.TotalCost,
         l.TotalCharge,
         w.CurrencySymbol

这是我的输出：

我的预期输出是

Answer 1

您按列进行分组，只需要总和。  从GROUP BY：

中删除它们

 SELECT
      l.LaborName,
      w.CurrencySymbol,
      SUM(l.TotalCost) AS totalCost,
      SUM(l.TotalCharge) AS totalCharge,
      SUM(l.EstimatedHours) AS totalHours
    FROM WOLabor l
    INNER JOIN WO w
      ON l.WOPK = w.WOPK
    WHERE l.WOPK = 10100
    AND RecordType = 1
    GROUP BY l.LaborName,
             w.CurrencySymbol

Answer 2

您似乎想要窗口功能：

overall sum

我怀疑您需要partition，如果是，请删除SELECT . . . SUM(l.TotalCost) over () AS totalCost, SUM(l.TotalCharge) over () AS totalCharge, SUM(l.EstimatedHours) over () AS totalHours FROM WOLabor l INNER JOIN WO w ON l.WOPK = w.WOPK WHERE l.WOPK = 10100 AND RecordType = 1; 子句

{{1}}

Answer 3

由于你没有接受任何给定的答案，我猜你正在寻找＆＃34;整个数据＆＃34;总和，因此您只需从

中删除选择和分组中的LaborName和EstimatedHours即可

SELECT
  l.LaborName,
  CONVERT(NVARCHAR, l.EstimatedHours) [EstimatedHours],
  CONVERT(NVARCHAR, l.TotalCost) TotalCost,
  CONVERT(NVARCHAR, l.TotalCharge) TotalCharge
FROM WOLabor l
INNER JOIN WO w
  ON l.WOPK = w.WOPK
WHERE l.WOPK = 10100
AND RecordType = 1

UNION ALL

SELECT
  'Estimated Labor Totals',
  SUM(l.EstimatedHours) AS totalHours,
  --CONCAT(W.CURRENCYSYMBOL, ' ', CONVERT(NVARCHAR, SUM(L.TOTALCOST))),
  --CONCAT(W.CURRENCYSYMBOL, ' ', CONVERT(NVARCHAR, SUM(L.TOTALCHARGE))) 
  W.CURRENCYSYMBOL + ' ' + CONVERT(NVARCHAR, SUM(L.TOTALCOST)),
  W.CURRENCYSYMBOL + ' ' + CONVERT(NVARCHAR, SUM(L.TOTALCHARGE))     
FROM WOLabor l
INNER JOIN WO w
  ON l.WOPK = w.WOPK
WHERE l.WOPK = 10100
AND RecordType = 1
GROUP BY W.CURRENCYSYMBOL

sql fiddle here

输出：

LaborName               EstimatedHours  TotalCost   TotalCharge
Barnes, Ashley          1               9           9.9
Chelsea, Smith          1               9           30
Estimated Labor Totals  2               Mex$ 18     Mex$ 39.9