一、 例子集合

首先展示举例的数据集合，并给每条记录标上一个行号

SELECT ROW_NUMBER() over (order by creatime) as num
  ,[name]
  ,[creatime]
  ,[count]
FROM [TEST].[dbo].[Table_1]

二、 分页

由于每条记录可以添加行号，也就从而实现了分页。此处，提取每页大小为3，页号为3的记录：

  declare @pageNum int
  declare @pageSize int
  set @pageNum = 3
  set @pageSize = 3
  select [name]
      ,[creatime]
      ,[count]
  FROM(SELECT ROW_NUMBER() over (order by creatime) as num
			  ,[name]
			  ,[creatime]
			  ,[count]
		      FROM [TEST].[dbo].[Table_1]) as tempT
  where (@pageNum - 1)* @pageSize < num and num <= @pageNum * @pageSize

三、 分组并排序

实现分组，并显示出每组数据。如下，将name进行分组，并每组按creatime排序

  SELECT ROW_NUMBER() over (PARTITION by name order by creatime) as num
  ,[name]
  ,[creatime]
  ,[count]
FROM [TEST].[dbo].[Table_1]

四、 分组里的最后一条数据

实现分组，并显示出每组数据的最后一条数据。如下，将name进行分组，并显示creatime排序的最后一条数据。

select [name]
      ,[creatime]
      ,[count]
      FROM(SELECT ROW_NUMBER() over (PARTITION by name order by creatime desc) as num
			  ,[name]
			  ,[creatime]
			  ,[count]
		  FROM [TEST].[dbo].[Table_1]) as tempT
  where num = 1