在存储过程中使用 Group By 子句答案

【问题标题】：Using Group By Clause in Stored procedure在存储过程中使用 Group By 子句
【发布时间】：2009-05-19 09:12:30
【问题描述】：

我有一个存储过程，其中我将 InvoiceValue 作为一个字段。我有对应于 1 个 fileid 的不同发票值。我想获得与每个 fileid 对应的发票值的总和。我如何在这里使用 group by？这是我的存储过程

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
ALTER Procedure [dbo].[rptGGM]
(
    @FromDate varchar(50),
    @ToDate varchar(50),
    @PartyID int,
    @WID int

)

As
DECLARE @WhereStr VarChar(800)

SET @FromDate = LTRIM(RTRIM(@FromDate)) 
SET @ToDate = LTRIM(RTRIM(@ToDate))

SET @WhereStr = 
    CASE @WID
        WHEN 23 THEN 'WHERE G.PartyID='+LTRIM(str(@PartyID)) +' AND ((D.ATASea >='''+@FromDate+''' And D.ATASea<='''+@ToDate+'''))'
        WHEN 7 THEN 'WHERE G.PartyID='+LTRIM(str(@PartyID)) +' AND ((D.ATASea >='''+@FromDate+''' And D.ATASea<='''+@ToDate+''')) AND  A.WorkID='+LTRIM(str(@WID))
        WHEN 6 THEN 'WHERE G.PartyID='+LTRIM(str(@PartyID)) +' AND ((D.ATASea >='''+@FromDate+''' And D.ATASea<='''+@ToDate+''')) AND  A.WorkID='+LTRIM(str(@WID))
        WHEN 11 THEN 'WHERE G.PartyID='+LTRIM(str(@PartyID)) +' AND ((D.ATASea >='''+@FromDate+''' And D.ATASea<='''+@ToDate+''')) AND  A.WorkID='+LTRIM(str(@WID))
        WHEN 12 THEN 'WHERE G.PartyID='+LTRIM(str(@PartyID)) +' AND ((D.ATASea >='''+@FromDate+''' And D.ATASea<='''+@ToDate+'''))  AND  A.WorkID='+LTRIM(str(@WID))

    END


BEGIN
exec

('SELECT 
         A.FileNumber As [File_No],
         H.IDFNumber as [IDF No],
         H.IDFRegNo as [TZDAR],
         F.POString As [PO_Numbers],
         B.PartyName As [Exporter Name],
         F.SIString As [Supplier Invoices],
         C.CargoDesc As [Cargo_Description],
         dbo.PackCntDetails(A.FileID) As [Pk/Cnt_Details],
         D.VesselName As [Vessel Name],
         D.VoyageNo As [Voyage No],
         L.Amount As [Invoice Value],
         convert(varchar, Dbo.ActualDate(A.ETA), 103) + '' '' + convert(varchar, Dbo.ActualDate(A.ETA), 108) As ETA,
         convert(varchar,Dbo.ActualDate(D.ATASea),103) + '' '' + convert(varchar, Dbo.ActualDate(D.ATASea), 108) As ATA,
         convert(varchar,Dbo.ActualDate(H.PCVRIssuedDate),103) + '' '' + convert(varchar, Dbo.ActualDate(H.PCVRIssuedDate), 108) as [PCVR Issued Date],
         convert(varchar,Dbo.ActualDate(V.VATRelDate),103) + '' '' + convert(varchar, Dbo.ActualDate(V.VATRelDate), 108) as [VR Requested],
         convert(varchar,Dbo.ActualDate(V.OriginalRecdDate),103) + '' '' + convert(varchar, Dbo.ActualDate(V.OriginalRecdDate), 108) as [VR Granted],
         convert(varchar,Dbo.ActualDate(H.SBECVRAppReturnedDate),103) + '' '' + convert(varchar, Dbo.ActualDate(H.SBECVRAppReturnedDate), 108) as [SBE _VR App. ReturnedDate],
         convert(varchar,Dbo.ActualDate(H.SBECVRIssuedDate),103) + '' '' + convert(varchar, Dbo.ActualDate(H.SBECVRIssuedDate), 108) as [SBE_CVR IssuedDate],
         convert(varchar,Dbo.ActualDate(I.CDFLodgedDate),103) + '' '' + convert(varchar, Dbo.ActualDate(I.CDFLodgedDate), 108) as [CDF LodgedDate],
         convert(varchar,dbo.ActualDate(I.AssessmentPaidDate), 103) + '' '' + convert(varchar,dbo.ActualDate(I.AssessmentPaidDate),108) As [DutyPaidDate], 
         convert(varchar,Dbo.ActualDate(I.EntryLodgedDate),103) + '' '' + convert(varchar, Dbo.ActualDate(I.EntryLodgedDate), 108) as [Entry LodgedDate],
         convert(varchar,Dbo.ActualDate(I.EntryPassedDate),103) + '' '' + convert(varchar, Dbo.ActualDate(I.EntryPassedDate), 108) as [Custom Released],
         [Actual Days from ATA to CR]=DATEDIFF(dd, Dbo.ActualDate(D.ATASea),Dbo.ActualDate(I.EntryPassedDate)),
         convert(varchar,Dbo.ActualDate(K.ShippingLineReleaseDate),103) + '' '' + convert(varchar, Dbo.ActualDate(K.ShippingLineReleaseDate),108) as [ShippingLine ReleaseDate],
         convert(varchar,Dbo.ActualDate(K.PortInvoicePaidDate),103) + '' '' + convert(varchar, Dbo.ActualDate(K.PortInvoicePaidDate),108) as [Port_Charges Paid_Date],
         convert(varchar,Dbo.ActualDate(K.RemPortYardDateSea),103) + '' '' + convert(varchar, Dbo.ActualDate(K.RemPortYardDateSea),108) as [Rem_Sea_Port to Yard_Date],
         [Actual Days From CR to RFD Dar]=DATEDIFF(dd,Dbo.ActualDate(I.EntryPassedDate), Dbo.ActualDate(K.RemPortYardDateSea)),
         [Total No: of Days(ATA-RFD)]=DATEDIFF(dd,Dbo.ActualDate(D.ATASea), Dbo.ActualDate(K.RemPortYardDateSea)),
         A.Remarks As [File Status]
FROM
    FileMain A
INNER JOIN Party G ON G.PartyID = A.PartyID
LEFT JOIN Party B ON B.PartyID = A.ExporterID
LEFT JOIN Cargo C ON C.FileID = A.FileID
LEFT JOIN FileSea D ON D.FileID = A.FileID
LEFT JOIN SIPOString F ON F.FileID=A.FileID
LEFT JOIN IDFMain H ON H.FileID=A.FileID
LEFT JOIN Customs I ON I.FileID=A.FileID
LEFT JOIN VATRelief V ON V.FileID=A.FileID
LEFT JOIN PortAirPortOperation K ON K.FileID=A.FileID
LEFT JOIN Invoice L ON L.FileID=A.FileID and L.Incoterm=''CIF''' +@WhereStr)

END

【问题讨论】：

标签： sql-server-2005

【解决方案1】：

这里最快的实现是不使用 GROUP BY。我会改为在您的 SELECT 中使用子查询来执行发票的 SUM。

将 LEFT JOIN 删除到 Invoice，然后将 SELECT 中的 L.Amount 行替换为子查询，如下所示

(SELECT SUM(Amount) FROM Invoice WHERE Invoice.FileID = A.FileID and Invoice.Incoterm = 'CIF') [Invoice Value]

如果您希望使用 GROUP BY 来执行 SUM，那么您需要对您选择的所有其他列进行 GROUP，或者在 VIEW（可能是嵌套的）内执行 GROUP。

【讨论】：