SQL获取最新一笔数据的两个查询方法

//取每一个站点的最新一笔预警信息方法一 select RCreateTime, stcd,SForecastTime,RQ,RQTime from ( select RCreateTime, stcd,SForecastTime,RQ,RQTime, ROW_NUMBER() over(partition by stcd order by RCreateTime desc) as tm_ind

>>阅读原文<<