oracle 修改system和sys账户密码

C:\Documents and Settings\Administrator>sqlplus / as sysdba

SQL*Plus: Release 10.2.0.1.0 - Production on 星期四 3月 1 12:49:10 2012

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连接到:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options

SQL> alter user sys identified by password;

用户已更改。

SQL> alter user system identified by password;

用户已更改。

SQL>