default username and password for oracle 11g
Run SQL*PLUS using Run SQL Command Line in Oracle Database 11g Connect to Oracle Database as SYSDBA as follows: SQL>connect as sysdba It will ask you to enter username. Enter SYS as username. change_on_install as Password When prompted for password, enter , which is the password for SYS account. SQL> ALTER USER system IDENTIFIED BY oracle; The above command changes password of SYSTEM account to oracle. Be careful passwords are case-sensitive. That's all you have to do to change password for SYSTEM account when you forget the password. Here is the snapshot of the SQL*PLUS screen, which shows all required steps.
