java 操作oracle 数据库，按Time排序 ，取前10条

String sql="select * from (select * from usr_public.t_portal_dbuser order by  RECORDDATE )"

+ " where rownum <=10";

若要求按时间倒序，只需在排序时加上 DESC即可。即
String sql="select * from (select * from usr_public.t_portal_dbuser order by  RECORDDATE DESC )"
+ " where rownum <=10";

楼主亲自试验，绝对可行