使用交叉应用插入到临时表中

Question

我想创建一个临时表，并根据选择插入值。查询没有执行，我缺少什么？我最终想循环浏览临时表

Create Table #temp (ID varchar(25),Source_Id varchar(25),Processed   varchar(25), Status varchar(25),Time_Interval_Min varchar(25))
Insert into #temp   
Select t.*
From
   (SELECT DISTINCT source_id 
    FROM Activity_WorkLoad) t1
    CROSS APPLY 
   (
    SELECT TOP 1
      aw.ID,
      Source_Id 
      ,Processed 
      ,Status 
      ,Time_Interval_Min
   FROM [dbSDS].[dbo].[Activity_WorkLoad] aw
   JOIN [dbSDS].[dbo].[SDA_Schedule_Time] st ON aw.SDA_Resource_ID = st.ID
   WHERE aw.Source_Id = t1.Source_Id AND aw.Status = 'Queued'
   ORDER BY Processed DESC  
   )t

Answer 1

当您cross apply时，您仍然需要一个别名：

Insert into #temp   (id, source_id, processed, status, time_interval_min)
    Select tt.*
    From (SELECT DISTINCT source_id 
          FROM Activity_WorkLoad
         ) t CROSS APPLY 
         (SELECT TOP 1 aw.ID, Source_Id, Processed, Status, Time_Interval_Min
          FROM [dbSDS].[dbo].[Activity_WorkLoad] aw JOIN 
               [dbSDS].[dbo].[SDA_Schedule_Time] st
               ON aw.SDA_Resource_ID = st.ID
          WHERE aw.Source_Id = t.Source_Id AND aw.Status = 'Queued'
          ORDER BY Processed DESC  
        ) tt;

我还假设您想要第二个子查询的结果，而不是第一个子查询，因为第一个子查询没有足够的列。