重置办法如下:打开CMD命令提示符,然后输入下面命令进行重置:
输入sqlplus /nolog,回车
SQL> conn /as sysdba
已连接;
SQL>alter user system identified by 123456; ---(123456就是重置的密码了)
SQL>alter user sys identified by 123456;
SQL>alter user knight identified by 123456;
SQL>alter user princess identified by 123456;