1、显示文章、提交人和最后回复时间
select a.title,a.username,b.adddate from table a, (select max(adddate) adddate from table where table.title=a.title) b
1、显示文章、提交人和最后回复时间
select a.title,a.username,b.adddate from table a, (select max(adddate) adddate from table where table.title=a.title) b