摘要：
转自：http://www.cnblogs.com/hxw/archive/2005/09/11/234619.html1.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 (sel 阅读全文
