取每天前72次 平均值

编辑器加载中...

 alter view V_OnlineCountArg

 as 

 select  avg(count) count , xDate

  from (select a.[count],convert(nvarchar(100),a.gettime,23) xDate,

               row_number() over(partition by convert(nvarchar(100),a.gettime,23) order by a.[count] desc, convert(nvarchar(100),a.gettime,23)) rn

          from playersCountlog a) tbl

 where tbl.rn <= 72 group by xDate