Oracle 11g中管理員用戶sys,system密碼不可用解決辦法

Oracle 11g數據庫安裝的時候，跳過了密碼設置那一項。在後來需要使用sys和system的時候，老是提示密碼不對。這裏提供一種能重新設置這些用戶密碼的方法。

使用sqlplus登陸數據庫：

bash-3.00$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.2.0 - Production on Fri Nov 30 16:29:59 2012

Copyright (c) 1982, 2005, Oracle.  All Rights Reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options

SQL> alter user sys identified by admin;

User altered.

SQL> conn sys/admin as sysdba;
Connected.
SQL> alter user system identified by admin;

User altered.

至此，你就可以使用自己設置的密碼登陸數據庫了。