ORACLE 分页查询基本模式
查询 一段 rownum记录 select * from (select row_.*, rownum rownum_ from ( ) row_ where rownum <= 10) where rownum_ > 0 and --其他查询条件
查询 指定rownum记录
select * from (select row_.*, rownum rownum_ from (select empid from A a ) row_ where rownum <= 10) where rownum_ = 10