[英]Calculate a sum field based on two columns
我有一個正在嘗試運行的訪問查詢,但似乎無法正確執行。
我已經在計算按名稱和說明列分組的總時數。 我希望總欄基本上按名稱和描述欄給出小時數的總和
SELECT dbo_t_SAP_AttCodes.Description, Sum(dbo_v_MES_TcActivities.Hours) AS SumOfHours,
Left([supervisor1email],InStr([supervisor1email],".")-1) AS [Supervisor First Name],
Mid([supervisor1email],InStr([supervisor1email],".")+1,
InStr([supervisor1email],"@")-InStr([supervisor1email],".")-1)
AS [Supervisor Last Name], (SELECT sum([hours]) FROM [dbo_v_MES_TcActivities]
WHERE [costctr]="106330" AND [clockin] Between DateAdd("d",-((Weekday(Date())-1)),
Date()) And Date()) AS Total_Hours
FROM dbo_v_MES_TcActivities LEFT JOIN dbo_t_SAP_AttCodes
ON dbo_v_MES_TcActivities.AttCode = dbo_t_SAP_AttCodes.Code
WHERE (((dbo_v_MES_TcActivities.AttCode) Not Like "MEAL")
AND ((dbo_v_MES_TcActivities.CostCtr) Like "106330")
AND ((dbo_v_MES_TcActivities.ClockIn) Between DateAdd("d",-((Weekday(Date())-1)),
Date()) And Date()))
GROUP BY dbo_t_SAP_AttCodes.Description, Left([supervisor1email],
InStr([supervisor1email],".")-1),
Mid([supervisor1email],InStr([supervisor1email],".")+1,
InStr([supervisor1email],"@")-InStr([supervisor1email],".")-1),
dbo_v_MES_TcActivities.Supervisor1Email
ORDER BY Mid([supervisor1email],InStr([supervisor1email],".")+1,
InStr([supervisor1email],"@")-InStr([supervisor1email],".")-1);
編輯:這是當前輸出的樣子:
這是我想看到的: 之后
考慮將子查詢轉換為相關子查詢,在該子查詢中,您將嵌套SELECT
語句與主查詢中對應的行名稱進行匹配,而沒有Description (僅Name )分組。 由於Supervisor的名字和姓氏計算表達式,以下內容很長。
請注意:以下將表別名與sub和main一起使用 (相應地調整所有字段引用):
子查詢
SELECT --...same fields/expressions as original w/ 'main' alias...,
(SELECT SUM(sub.[hours]) FROM [dbo_v_MES_TcActivities] sub
WHERE sub.[costctr]="106330"
AND sub.AttCode Not Like "MEAL"
AND sub.[clockin] Between DateAdd("d",-((Weekday(Date())-1)), Date()) And Date()
AND Left(sub.[supervisor1email], InStr(sub.[supervisor1email],".")-1) =
Left(main.[supervisor1email], InStr(main.[supervisor1email],".")-1)
AND Mid(sub.[supervisor1email], InStr(sub.[supervisor1email],".")+1,
InStr(sub.[supervisor1email],"@") - InStr(sub.[supervisor1email],".")-1) =
Mid(main.[supervisor1email], InStr(main.[supervisor1email],".")+1,
InStr(main.[supervisor1email],"@") - InStr(main.[supervisor1email],".")-1)
) AS Total_Hours
FROM dbo_v_MES_TcActivities main
LEFT JOIN dbo_t_SAP_AttCodes sap
ON main.AttCode = sap.Code
--...same WHERE and GROUPBY as original w/ 'main' and 'sap' aliases...
派生表
或者,將兩個聚合查詢都轉換為派生表,並與主查詢連接。 在MS Access中,您甚至可以將兩個嵌套的SELECT
語句另存為單獨的已保存查詢,並在FROM
和JOIN
子句中引用它們。 再次注意表別名:
SELECT t1.Description, t1.SumOfHours, t1.[Supervisor First Name], t1.[Supervisor Last Name],
t2.TotalHours
FROM (
SELECT --...same fields/expressions as original...
FROM dbo_v_MES_TcActivities main
LEFT JOIN dbo_t_SAP_AttCodes sap
ON main.AttCode = sap.Code
--...same WHERE and GROUPBY as original...
) As t1
INNER JOIN
(
SELECT SUM(sub.[hours]),
Left(sub.[supervisor1email], InStr(sub.[supervisor1email],".")-1)
AS [Supervisor First Name],
Mid(sub.[supervisor1email], InStr(sub.[supervisor1email],".")+1,
InStr(sub.[supervisor1email],"@") - InStr(sub.[supervisor1email],".")-1)
AS [Supervisor Last Name]
FROM [dbo_v_MES_TcActivities] sub
WHERE sub.[costctr]="106330"
AND sub.AttCode Not Like "MEAL"
AND sub.[clockin] Between DateAdd("d",-((Weekday(Date())-1)), Date()) And Date()
GROUP BY
Left(sub.[supervisor1email], InStr(sub.[supervisor1email],".")-1),
Mid(sub.[supervisor1email], InStr(sub.[supervisor1email],".")+1,
InStr(sub.[supervisor1email],"@") - InStr(sub.[supervisor1email],".")-1)
) AS t2
ON t1.[Supervisor First Name] = t2.[Supervisor First Name]
AND t1.[Supervisor Last Name] = t2.[Supervisor Last Name]
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