Question

ALTER PROCEDURE [dbo].[K_FS_GetFeedDivisionReport] 
@orderno varchar(50)
AS
BEGIN

SET NOCOUNT ON;
select OT.OrderNo,FT.Feedtype,ModeofPack='Plastic',BG.Bagtype,OD.Numofbags,   
(OD.numofbags*BG.Bagtype) as TotalQty,sum(TotalQty) as Total from  
K_FS_OrderconfirmDetails OD
inner join K_FS_bagtype BG on OD.bagtype=BG.sno
inner join k_FPS_FeedType FT  on FT.sno=OD.feedtype
inner join K_FS_OrderDetails OT on OT.sno = OD.orderno where OD.orderno = @orderno
group by  OT.OrderNo,FT.Feedtype,BG.Bagtype,OD.Numofbags
END

我在这里计算TotalQty，我想计算TotalQty的总和，但TotalQty是别名是否可能？其他明智的我如何解决它...请帮助我...

Answer 1

您可以使用子查询来实现此目的。以这种方式修改select语句：

  select OT.OrderNo,FT.Feedtype,ModeofPack='Plastic',BG.Bagtype,OD.Numofbags,   
       (OD.numofbags*BG.Bagtype) as TotalQty,
       (select SUM(OD.numofbags*BG.Bagtype) 
        from K_FS_OrderconfirmDetails OD inner join
        K_FS_bagtype BG on OD.bagtype=BG.sno ) 
        as Total
  from K_FS_OrderconfirmDetails OD
        inner join K_FS_bagtype BG on OD.bagtype=BG.sno
        inner join k_FPS_FeedType FT  on FT.sno=OD.feedtype
        inner join K_FS_OrderDetails OT on OT.sno = OD.orderno where OD.orderno = @orderno
  group by  OT.OrderNo,FT.Feedtype,BG.Bagtype,OD.Numofbags

这将计算最后一列中所有内容的总和。

Answer 2

是的，你可以这样做：

ALTER PROCEDURE [dbo].[K_FS_GetFeedDivisionReport] 
@orderno varchar(50)
AS
BEGIN

SET NOCOUNT ON;
select OT.OrderNo,FT.Feedtype,ModeofPack='Plastic',BG.Bagtype,OD.Numofbags,   
(OD.numofbags*BG.Bagtype) as TotalQty,sum(OD.numofbags*BG.Bagtype) as Total from  
K_FS_OrderconfirmDetails OD
inner join K_FS_bagtype BG on OD.bagtype=BG.sno
inner join k_FPS_FeedType FT  on FT.sno=OD.feedtype
inner join K_FS_OrderDetails OT on OT.sno = OD.orderno where OD.orderno = @orderno
group by  OT.OrderNo,FT.Feedtype,BG.Bagtype,OD.Numofbags,OD.numofbags*BG.Bagtype
END

如果每行需要totalQty，则应使用子查询：

ALTER PROCEDURE [dbo].[K_FS_GetFeedDivisionReport] 
    @orderno varchar(50)
    AS
    BEGIN

    SET NOCOUNT ON;
    select OT.OrderNo,FT.Feedtype,ModeofPack='Plastic',BG.Bagtype,OD.Numofbags,   
    (OD.numofbags*BG.Bagtype) as TotalQty,
    Total = (Select Sum (OD.numofbags*BG.Bagtype) from  K_FS_OrderconfirmDetails OD
    inner join K_FS_bagtype BG on OD.bagtype=BG.sno
    inner join k_FPS_FeedType FT  on FT.sno=OD.feedtype
    inner join K_FS_OrderDetails OT on OT.sno = OD.orderno where OD.orderno = @orderno)

 from  
    K_FS_OrderconfirmDetails OD
    inner join K_FS_bagtype BG on OD.bagtype=BG.sno
    inner join k_FPS_FeedType FT  on FT.sno=OD.feedtype
    inner join K_FS_OrderDetails OT on OT.sno = OD.orderno where OD.orderno = @orderno
    group by  OT.OrderNo,FT.Feedtype,BG.Bagtype,OD.Numofbags,OD.numofbags*BG.Bagtype
    END

Answer 3

你不能这样做： SUM（OD.numofbags * BG.Bagtype）为TotalQty，sum（TotalQty）为总计

Answer 4

如果你想要这些总数你需要在numofbags等上删除这个组，那么当你开始对你的计算值进行分组的那一刻，你的nolonger计算一个完整的总和。

sum子句用别名来计算总数？

4 个答案: