Поэтому пришлось задать пароли по новому для пользователей.
Для этого понадобилось зайти в SQL Command Line и выполнить некоторые команды:
sqlplus system/system
SQL*Plus: Release 11.2.0.2.0 Production on +Є Tхэ 26 14:07:25 2013
Copyright (c) 1982, 2010, Oracle. All rights reserved.
SQL> conn /as sysdba
Connected.
SQL> alter user system identified by system;
User altered.
SQL> disconn
Disconnected from Oracle Database 11g Express Edition Release 11.2.0.2.0 - Produ
ction
SQL> conn system/system
Connected.
SQL> disconn
Disconnected from Oracle Database 11g Express Edition Release 11.2.0.2.0 - Produ
ction
SQL>
Есть такой же способ. Можно из консоли запустить sqlplus
C:\Users\anteastra>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Thu Sep 26 15:19:29 2013
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> alter user system identified by system;
User altered.
SQL>