1. 根据ROWID来分
select * from t_xiaoxi where rowid in (select rid from (select rownum rn, rid from (select rowid rid, cid fromt_xiaoxi order by cid desc) where rownum < 10000) where rn > 9980) order by cid desc;
执行时间0.03秒
2. 按分析函数来分select * from (select t.*, row_number() over(order by cid desc) rk from t_xiaoxi t) where rk < 10000 and rk > 9980;
执行时间1.01秒
3. 按ROWNUM来分select * from (select t.*, rownum rn from (select * from t_xiaoxi order by cid desc) t where rownum < 10000) where rn > 9980;
执行时间0.1秒
其中t_xiaoxi为表名称，cid为表的关键字段，取按CID降序排序后的第9981-9999条记录，t_xiaoxi表有70000多条记录个人感觉方法1的效率最好，3次之，2最差。