Question

我有下表

UNIQUEKEY    ID      Clicks IsProcessed   INSERTDATE
 1         100001   10        1         2011-05-14 00:00:00.000
 2         100001   20        0         2011-05-13 00:00:00.000
 3         100001   30        1         2011-05-18 00:00:00.000
 4         100002   10        1         2011-05-20 00:00:00.000
 5         100002   15        0         2011-05-24 00:00:00.000
 6         100002   10        0         2011-05-05 00:00:00.000

我需要一个T-SQL查询，它首先按INSERTDATE（desc）排序一旦订购，它应该返回一个GROUP by ID和IsProcessed，结果应该显示所有列Orderby并按上述方式分组。

编辑：因此，如果我们运行查询，让我们说ID 10001它应该给我2个结果集：期望的结果：

UNIQUEKEY    ID      Clicks IsProcessed   INSERTDATE
 3         100001   30        1         2011-05-18 00:00:00.000
 1         100001   10        1         2011-05-14 00:00:00.000        
 2         100001   20        0         2011-05-13 00:00:00.000

作为关键字的ID和IsProcessed的结果，结果按Date (desc)排序。

任何帮助将不胜感激！

Answer 1

试试这个：

declare @ID int = 100001
declare @IsProcessed int

declare
  crsMy cursor fast_forward for
select
  distinct IsProcessed
from
  tTest
order by
  IsProcessed desc

open crsMy

fetch next from crsMy into @IsProcessed

while @@fetch_status = 0
begin
  select
    UNIQUEKEY
    ,ID
    ,Clicks
    ,IsProcessed
    ,INSERTDATE
  from
    tTest
  where
    (ID=@ID)
    and
    (IsProcessed=@IsProcessed)
  order by
    INSERTDATE desc



  fetch next from crsMy into @IsProcessed
end

close crsMy
deallocate crsMy

或sql fiddle

（在sqlfiddle上只显示第一个结果集。）

SQL一起执行Order by和Group

1 个答案: