作者: hjw

hjw — Tue, 11 Aug 2009 06:37:15 +0000

现在还可以用ORA_ROWSCN

作者: kk

kk — Sun, 04 Jan 2009 08:27:05 +0000

T3> SQL> update bmw_users set rated_sum =
(select count(*) from auction_feedbacks
where username=?)
where id=?;
1 row updated

T4> SQL> update bmw_users set rated_sum =
(select count(*) from auction_feedbacks
where username=?)
where id=?;
1 row updated
t3 应该锁住t4了吧？