Oracle10g忘记sys、system密码找回及scott登陆问题

system:

cmd->cd \oracle\product\10.2.0\db_1\bin->sqlplus /nolog->conn /as sysdba->alter user system identified by manager;

sys:

conn sys/pass_word as sysdba;alter user sys identified by chang_on_install

scott：

原因：Oracle10g默认scott用户不能登陆 the account is locked

解锁：登陆sys或system解锁

conn sys/chang_on_install;

alter user scott account unlock;

登陆：conn scott/tiger;提示Your password is expired;密码过期，弹出窗口直接修改

账户被锁：1.登陆时密码输错多次，超出允许次数，过段时间自会解锁

2.alter user username account lock，由alter user username account unlock;