我有一个带有连接多个表的动态搜索查询，用于显示某些列的总和和计数。但sum函数返回错误的值。它导致加入。但我不知道该怎么做，只是我知道如果删除传递表的结果将是真的。但我的交货表需要搜索参数。
以下是一些代码行：
SELECT
COUNT(DISTINCT Cargo.ID) AS 'TotalCargo',
SUM(CargoService.Weight) AS 'TotalWeight',
SUM(CargoService.PackageNo) AS 'TotalPack',
COUNT(DISTINCT CargoService.FlightNo) AS 'TotalFlight',
COUNT(DISTINCT Cargo.Origin) AS 'TotalOrigin'
FROM
Cargo
INNER JOIN
CargoService ON Cargo.ID = CargoService.CargoID
INNER JOIN
Contents ON Cargo.Contents = Contents.ID
FULL JOIN
Delivery ON Cargo.ID = Delivery.CargoID
FULL JOIN
Transit ON Cargo.ID = Transit.CargoID
WHERE
Cargo.InputDate BETWEEN CAST(CONVERT(char(10), '2012/04/03', 126) AS datetime)
AND CAST(CONVERT(char(10), '2012/04/03', 126) AS datetime)
AND CargoService.FlightNo = 1356
，总搜索查询如下：
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER procedure [dbo].[Cargo_SearchTotal]
@EntryFrom nvarchar(20),
@EntryTo nvarchar(20),
@DeliveredFrom nvarchar(20),
@DeliveredTo nvarchar(20),
@Origin nvarchar(10),
@Transit nvarchar(10),
@CargoCode char(16),
@Name nvarchar(150),
@Family nvarchar(150),
@RealName nvarchar(150),
@RealFamily nvarchar(150),
@FlightNo nvarchar(10),
@Daily nvarchar(10),
@UndeliveredTransit nvarchar(10),
@Undelivered nvarchar(10),
@UndeliveredPerishable nvarchar(10),
@Delivered nvarchar(10),
@sort nvarchar(10)
as
declare @query as nvarchar(max);
declare @params as nvarchar(max);
set @query = 'SELECT Count(DISTINCT Cargo.ID) AS ''TotalCargo'',
sum(CargoService.Weight) AS ''TotalWeight'',
SUM(CargoService.PackageNo) AS ''TotalPack'',
COUNT(DISTINCT CargoService.FlightNo) AS ''TotalFlight'',
COUNT(DISTINCT Cargo.Origin) AS ''TotalOrigin''
FROM
Contents INNER JOIN
Cargo ON Contents.ID = Cargo.Contents FULL Join
Delivery ON Cargo.ID = Delivery.CargoID full JOIN
Transit ON Cargo.ID = Transit.CargoID JOIN
CargoService ON Cargo.ID = CargoService.CargoID '
---------------------------------------------
if(@EntryFrom='select') set @EntryFrom='';
if(@EntryTo='select') set @EntryTo='';
if(@DeliveredFrom='select') set @DeliveredFrom='';
if(@DeliveredTo='select') set @DeliveredTo='';
if(@Origin='select') set @Origin='';
if(@Transit='select') set @Transit='';
if(@CargoCode='select') set @CargoCode='';
if(@Name='select') set @Name='';
if(@Family='select') set @Family='';
if(@RealName='select') set @RealName='';
if(@RealFamily='select') set @RealFamily='';
if(@FlightNo='select') set @FlightNo='';
if(@Daily <> 'True') set @Daily='';
if(@UndeliveredTransit <> 'True') set @UndeliveredTransit='';
if(@Undelivered <> 'True') set @Undelivered='';
if(@UndeliveredPerishable <> 'True') set @UndeliveredPerishable='';
if(@Delivered <> 'True') set @Delivered='';
if(@sort <> 'True') set @sort='';
---------------------------------------------
if(@EntryFrom<>'' or @EntryTo<>'' or @DeliveredFrom<>'' or @DeliveredTo<>'' or @Origin<>''
or @Transit<>'' or @CargoCode<>'' or @Name<>''
or @Family<>'' or @RealName<>'' or @RealFamily<>'' or @FlightNo<>'' or @Daily <>''
or @UndeliveredTransit <>'' or @Undelivered <>'' or @UndeliveredPerishable<>'' or @Delivered<>'')
begin
set @query=@query+' where ';
end
---------------------------------------------
if(@EntryFrom<>'' and @EntryTo<>'' and (@EntryFrom=@EntryTo))
begin
set @query=@query+' Cargo.InputDate=cast(CONVERT(char(10), '''+@EntryFrom+''',126) as datetime) and ';
end
else if(@EntryFrom<>'' and @EntryTo<>'')
begin
set @query=@query+' Cargo.InputDate between cast(CONVERT(char(10), '''+@EntryFrom+''',126) as datetime) and cast(CONVERT(char(10), '''+@EntryTo+''',126) as datetime) and ';
end
else if(@EntryFrom<>'' and @EntryTo='')
begin
set @query=@query+' Cargo.InputDate >=cast(CONVERT(char(10), '''+@EntryFrom+''',126) as datetime) and ';
end
else if(@EntryFrom='' and @EntryTo<>'')
begin
set @query=@query+' Cargo.InputDate <=cast(CONVERT(char(10), '''+@EntryTo+''',126) as datetime) and ';
end
---------------------------------------------
if(@DeliveredFrom<>'' and @DeliveredTo<>'' and (@DeliveredFrom=@DeliveredTo))
begin
set @query=@query+' Delivery.DeliveryDate=cast(CONVERT(char(10), '''+@DeliveredFrom+''',126) as datetime) and ';
end
else if(@DeliveredFrom<>'' and @DeliveredTo<>'')
begin
set @query=@query+' Delivery.DeliveryDate between cast(CONVERT(char(10), '''+@DeliveredFrom+''',126) as datetime) and cast(CONVERT(char(10), '''+@DeliveredTo+''',126) as datetime) and ';
end
else if(@DeliveredFrom<>'' and @DeliveredTo='')
begin
set @query=@query+' Delivery.DeliveryDate >= cast(CONVERT(char(10), '''+@DeliveredFrom+''',126) as datetime) and ';
end
else if(@DeliveredFrom='' and @DeliveredTo<>'')
begin
set @query=@query+' Delivery.DeliveryDate <= cast(CONVERT(char(10), '''+@DeliveredTo+''',126) as datetime) and ';
end
---------------------------------------------
if(@Origin<>'')
begin
set @query=@query+' Cargo.Origin = cast('''+@Origin+''' as int) and ';
end
---------------------------------------------
if(@Transit<>'')
begin
set @query=@query+' Transit.TransitTo = cast('''+@Transit+''' as int) and ';
end
---------------------------------------------
if(@CargoCode<>'')
begin
set @query=@query+' CargoNumber=cast('''+@CargoCode+''' as char(16)) and ';
end
---------------------------------------------
if(@FlightNo<>'')
begin
set @query=@query+' CargoService.FlightNo=cast('''+@FlightNo+''' as nvarchar(255)) and ';
end
---------------------------------------------
if(@Name<>'')
begin
set @query=@query+' Cargo.Rname like N'''+@Name+''' and ';
end
---------------------------------------------
if(@Family<>'')
begin
set @query=@query+' Cargo.RFamily like N'''+@Family+''' and ';
end
---------------------------------------------
if(@RealName<>'')
begin
set @query=@query+' Delivery.RName like N'''+@RealName+''' and ';
end
---------------------------------------------
if(@RealFamily<>'')
begin
set @query=@query+' Delivery.RFamily like N'''+@RealFamily+''' and ';
end
---------------------------------------------
if(@Daily<>'')
begin
set @query=@query+' convert(varchar, Cargo.SaveDate, 111) = convert(varchar, getdate(), 111) and ';
end
---------------------------------------------
if(@UndeliveredTransit<>'')
begin
set @query=@query+' Cargo.Delivered = 0 and Cargo.Transit = 1 and ';
end
---------------------------------------------
if(@Undelivered<>'')
begin
set @query=@query+' Cargo.Delivered = 0 and ';
end
---------------------------------------------
if(@UndeliveredPerishable<>'')
begin
set @query=@query+' Contents.Perishable = 1 AND Cargo.Delivered = 0 and ';
end
---------------------------------------------
if(@Delivered <> '')
begin
set @query=@query+' Cargo.Delivered = 1 and ';
end
---------------------------------------------
if(@EntryFrom<>'' or @EntryTo<>'' or @DeliveredFrom<>'' or @DeliveredTo<>'' or @Origin<>''
or @Transit<>'' or @CargoCode<>'' or @Name<>''
or @Family<>'' or @RealName<>'' or @RealFamily<>'' or @FlightNo<>'' or @Daily <>''
or @UndeliveredTransit <>'' or @Undelivered <>'' or @UndeliveredPerishable <>'' or @Delivered <>'')
begin
set @query=substring(@query,0,len(@query)-3);
end
---------------------------------------------
set @params = '@EntryFrom nvarchar(20),
@EntryTo nvarchar(20),
@DeliveredFrom nvarchar(20),
@DeliveredTo nvarchar(20),
@Origin nvarchar(10),
@Transit nvarchar(10),
@CargoCode char(16),
@Name nvarchar(150),
@Family nvarchar(150),
@RealName nvarchar(150),
@RealFamily nvarchar(150),
@FlightNo nvarchar(10),
@Daily nvarchar(10),
@UndeliveredTransit nvarchar(10),
@Undelivered nvarchar(10),
@UndeliveredPerishable nvarchar(10),
@Delivered nvarchar(10),
@sort nvarchar(10)';
---------------------------------------------
exec sp_executesql @query,@params,@EntryFrom,@EntryTo,@DeliveredFrom,@DeliveredTo,@Origin,
@Transit,@CargoCode,@Name,
@Family,@RealName,@RealFamily,@FlightNo,@Daily,
@UndeliveredTransit,@Undelivered,@UndeliveredPerishable,@Delivered,@sort;
答案 0 :(得分：1)
您可以删除加入并使用存在：
declare @deliveryQuery as varchar(max)
declare @deliveryLen int
set @deliveryQuery = 'and exists (select null
from Delivery
where Cargo.ID = Delivery.CargoID'
-- It will change if we add conditions to @deliveryQuery
set @deliveryLen = len(@deliveryQuery)
-- ...
if(@RealName<>'')
begin
set @deliveryQuery = @deliveryQuery
+ ' and Delivery.RName like N'''+@RealName+'''';
end
-- Aditional conditions here following the pattern above
--And later, test if @deliveryQuery has changed
if len(@deliveryQuery) <> @deliveryLen
begin
set @query = @query + @deliveryQuery + ')'
end