Sqlserver 查询一个字段里不同值的最新一条记录

Posted 2020-09-01 朝雾轻寒

查询用户编号为1165的所有数据：

 select * from T_JianKangJC_JianCeSJ where JianCeCSID in (19,7,1,2,20,15) and YongHuID=\'1165\' order by JianCeID desc

 

查询用户编号为1165且监测参数为（1,2，7，15,19,20）的最新数据：

 select * from T_JianKangJC_JianCeSJ a where exists(
 select * from (
 select JianCeCSID,max(JianCeSJ) as FTime from T_JianKangJC_JianCeSJ where YongHuID=\'1165\' and JianCeCSID in (19,7,1,2,20,15) group by JianCeCSID ) x
 where x.JianCeCSID=a.JianCeCSID and a.JianCeSJ=x.FTime )