Question

我想选择具有最新日期的ROW。我似乎无法同时选择ID和已发布。

T.Released = MAX（T.Released）对我不起作用。我正在使用MS SQL

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Answer 1

您必须在子查询中包含该列;

SELECT ID , Released
FROM ( SELECT [id]   
      ,[Released]       
  FROM [dbo].[PressReleases]
  where id   in 
    (
      .....
    ) ) as T    
Where T.Released = MAX (T.Released)

或者你可以这样做;

SELECT ID , Released
FROM [dbo].[PressReleases]
  where id   in 
    (
      .....
    )
AND T.Released = (SELECT MAX (Released) FROM dbo.PressReleases)

Answer 2

只需在子查询中选择MAX Released-Date。

SELECT [id]   
      ,[Released]       
  FROM [dbo].[PressReleases]
 WHERE Released = ( 
                     SELECT MAX(Released)
                       FROM [dbo].[PressReleases]
                       -- Select here your T Table with the Where Conditions
                  )

具有MAX日期的SELECT行

2 个答案: