sql分组按时间查询最近的一条

select t.* from (select * ,row_number() over (partition by FID order by SW_MEASURE_TME desc) as rn from SWLSDTJC) t where rn<=1 and SW_MEASURE_TME > DATEADD(HOUR,-2,GETDATE()) 分组查询最近两个小

>>阅读原文<<