Oracle分页总汇 select * from (select a.*,rownum row_num from (select * from mytable t order by t.id desc) a where rownum<=10 ) b where b.row_num >= 1 order by u_age desc; select * from (select a.*,rownum row_num from (select * from mytable t order by t.id desc) a ) b where b.row_num between 1 and 10 .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 from t_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1的效率最好,3次之,2最差 --1:无ORDER BY排序的写法。(效率最高) --(经过测试,此方法成本最低,只嵌套一层,速度最快!即使查询的数据量再大,也几乎不受影响,速度依然!) SELECT * FROM (Select ROWNUM AS ROWNO, T.* from k_task T where Flight_date between to_date('20060501', 'yyyymmdd') and to_date('20060731', 'yyyymmdd') AND ROWNUM <= 20) TABLE_ALIAS WHERE TABLE_ALIAS.ROWNO >= 10; --2:有ORDER BY排序的写法。(效率最高) --(经过测试,此方法随着查询范围的扩大,速度也会越来越慢哦!) SELECT * FROM (SELECT TT.*, ROWNUM AS ROWNO FROM (Select t.* from k_task T where flight_date between to_date('20060501', 'yyyymmdd') and to_date('20060531', 'yyyymmdd') ORDER BY FACT_UP_TIME, flight_no) TT WHERE ROWNUM <= 20) TABLE_ALIAS where TABLE_ALIAS.rowno >= 10; --3:无ORDER BY排序的写法。(建议使用方法1代替) --(此方法随着查询数据量的扩张,速度会越来越慢哦!) --4:有ORDER BY排序的写法.(建议使用方法2代替) SELECT * FROM (Select ROWNUM AS ROWNO, T.* from k_task T where Flight_date between to_date('20060501', 'yyyymmdd') and to_date('20060731', 'yyyymmdd')) TABLE_ALIAS WHERE TABLE_ALIAS.ROWNO <= 20 AND TABLE_ALIAS.ROWNO >= 10; --TABLE_ALIAS.ROWNO between 10 and 100; --(此方法随着查询范围的扩大,速度会越来越慢哦!) SELECT * FROM (SELECT TT.*, ROWNUM AS ROWNO FROM (Select * from k_task T where flight_date between to_date('20060501', 'yyyymmdd') and to_date('20060531', 'yyyymmdd') ORDER BY FACT_UP_TIME, flight_no) TT) TABLE_ALIAS where TABLE_ALIAS.rowno BETWEEN 10 AND 20; --5另类语法。(有ORDER BY写法) --(语法风格与传统的SQL语法不同,不方便阅读与理解,为规范与统一标准,不推荐使用。) With partdata as( SELECT ROWNUM AS ROWNO, TT.* FROM (Select * from k_task T where flight_date between to_date('20060501', 'yyyymmdd') and to_date('20060531', 'yyyymmdd') ORDER BY FACT_UP_TIME, flight_no) TT WHERE ROWNUM <= 20) Select * from partdata where rowno >= 10; --6另类语法 。(无ORDER BY写法) With partdata as( Select ROWNUM AS ROWNO, T.* From K_task T where Flight_date between to_date('20060501', 'yyyymmdd') and To_date('20060531', 'yyyymmdd') AND ROWNUM <= 20) Select * from partdata where Rowno >= 10;