Oracle分页SQL

冬眠的Evan — Sun, 23 Mar 2008 08:22:00 GMT

以前记在�W�记上的一点东西，贴上来，省得以后丢了�W�记,忘记�?
Oracle 分页
select a.*, rownum r
from (select * from lg_order o order by o.order_id) a
where rownum <= 20
   and rownum >= 10

select *
from (select a.*, rownum r
          from (select * from lg_order o order by o.order_id) a
         where rownum <= 20) b
where r >= 10

select *
from (select rid
          from (select rownum rn, rid
                  from (select rowid rid from lg_order o order by o.order_id)
                 where rownum <= 20)
         where rn >= 10) t1,
       lg_order t2
where t2.rowid = t1.rid

�W�一句是错误�?�׃��rownum是一个��L��?开始的伪列�Q�Oracle 认�ؓ�q�种条�g不成立，查不到记�?
执行��序从内到外�Q�从叛_��?
直接取物理地址最�?br />
之前写错了，也没人指出，真是凄凉

冬眠的Evan 2008-03-23 16:22 发表评论

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Oracle分页SQL