Oracle10g忘记system,sys密码的解决办法。

Microsoft Windows XP [版本 5.1.2600]
(C) 版权所有 1985-2001 Microsoft Corp.

C:\Documents and Settings\Administrator>sqlplus /nolog

SQL*Plus: Release 10.1.0.2.0 - Production on 星期六 6月 26 11:08:34 2010

Copyright (c) 1982, 2004, Oracle.  All rights reserved.

SQL> conn /as sysdba
Connected.

SQL> alter user system identified by "123456";

User altered.

SQL> alter user sys identified by "123456";

User altered.

SQL> alter user system identified by "123456";

User altered.

SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Pr
oduction
With the Partitioning, OLAP and Data Mining options

C:\Documents and Settings\Administrator>sqlplus

SQL*Plus: Release 10.1.0.2.0 - Production on 星期六 6月 26 11:11:34 2010

Copyright (c) 1982, 2004, Oracle.  All rights reserved.

Enter user-name: system
Enter password:

Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options

SQL>  select instance_name from v$instance;

INSTANCE_NAME
--------------------------------
myfirstoracledb