sql - .NET技术 / C#

"select (select LogisticsCompanyName from tb_LogisticsCompany where LogisticsCompanyID=a.LogisticsCompanyID) as 'LogisticsCompanyName',a.LogisticsCompanyOrderfrom,a.OrderfromID,b.MemberName,case a.OrderfromState when 0 then '等待发货' when 1 then '已发货' end as OrderfromState,a.AppendTime from tb_Orderfrom a inner join DeliverGoods_Address b on a.DeliverGoods_AddressID=b.ID where b.MemberID=(select MemberID from tb_Member where MemberName='{0}')"

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dddddddddd

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ddddddd

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select *
(select LogisticsCompanyName from tb_LogisticsCompany where LogisticsCompanyID=a.LogisticsCompanyID) 
as 'LogisticsCompanyName',
a.LogisticsCompanyOrderfrom,
a.OrderfromID,b.MemberName,
case a.OrderfromState 
when 0 then '等待发货' 
when 1 then '已发货' end
 as OrderfromState,a.AppendTime
 from tb_Orderfrom a 
 inner join DeliverGoods_Address b 
 on a.DeliverGoods_AddressID=b.ID 
 where b.MemberID=(select distinct MemberID from tb_Member where MemberName='{0}'
 )

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什么问题？

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要保证select distinct MemberID from tb_Member where MemberName='{0}'
这句查出来的结果唯一才行
，否则就这样
select *
(select LogisticsCompanyName from tb_LogisticsCompany where LogisticsCompanyID=a.LogisticsCompanyID)  
as 'LogisticsCompanyName',
a.LogisticsCompanyOrderfrom,
a.OrderfromID,b.MemberName,