-- 方法1 select a.* from table1 a where not exists(select 1 from table1 b where b.name=a.name and b.gdtime>a.gdtime) -- 方法2 select a.* from table1 a inner join (select name, max(gdtime) ‘maxgdtime‘ from table1 group by name) b on a.name=b.name and a.gdtime=b.maxgdtime
原文地址:https://www.cnblogs.com/ttty/p/10169439.html
时间: 2024-10-17 15:51:01