Oracle 10g忘记system,sys,sysman密码解决方案
转贴于：http://mofeichen.iteye.com/blog/839111
C:\Documents and Settings\Administrator>sqlplus /nolog
SQL*Plus: Release 10.1.0.2.0 - Production on 星期六 12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
--------------------------------
orcl