Question

我希望根据Sql Server 2008中的用户定义参数将结果连接到两个表和组。我尝试了下面的查询，但它无法正常工作。如果有人帮助我看到我的错误并为我纠正错误，我感激不尽。问候。

 Select TotalVolume= SUM(volume),
   PrimGroup = r.PrimaryGroup, SnGroup = r.SecondaryGroup
 from   Requests r 
 inner join #Calculations c on
        case @PrimaryId is not null then c.PrimaryGroup = r.PrimaryGroup end
    and case @SecondaryId is not null then c.SecondaryGroup = r.SecondaryGroup end 
    and c.SrgId = r.SrgId
 group by 
   case @PrimaryId is not null then r.PrimaryGroup end, 
   case @SecondaryId is not null then r.SecondaryGroup end

Answer 1

试试这个：

 Select TotalVolume= SUM(volume),
   PrimGroup = r.PrimaryGroup, SnGroup = r.SecondaryGroup
 from   Requests r 
 inner join #Calculations c on
        ((@PrimaryId is null) or 
         (@PrimaryId is not null) and c.PrimaryGroup = r.PrimaryGroup) 
    and ((@SecondaryId is null) or 
         (@SecondaryId is not null) and c.SecondaryGroup = r.SecondaryGroup) 
    and c.SrgId = r.SrgId
 group by 
   case when @PrimaryId is not null then r.PrimaryGroup end, 
   case when @SecondaryId is not null then r.SecondaryGroup end

根据sql server 2008中的用户定义参数连接表和groupby结果

1 个答案: