[oracle11g] Default passwords of Oracle 11g?

I installed Oracle 11g. I didn't change the passwords for SYSTEM and SYS. However now I find that the default passwords do not work. Please help.

This question is related to oracle11g

The answer is


Login into the machine as oracle login user id( where oracle is installed)..

  1. Add ORACLE_HOME = <Oracle installation Directory> in Environment variable

  2. Open a command prompt

  3. Change the directory to %ORACLE_HOME%\bin

  4. type the command sqlplus /nolog

  5. SQL> connect /as sysdba

  6. SQL> alter user SYS identified by "newpassword";

One more check, while oracle installation and database confiuration assistant setup, if you configure any database then you might have given password and checked the same password for all other accounts.. If so, then you try with the password which you have given in your database configuration assistant setup.

Hope this will work for you..


Once installed in windows Followed the instructions starting from Run SQL Command Line (command prompt)

then... v. SQL> connect /as sysdba

Connected. [SQL prompt response]

vi. SQL> alter user SYS identified by "newpassword";

User altered. [SQL prompt response]

Thank you. This minimized a headache


actually during the installation process.it will prompt u to enter the password..At the last step of installation, a window will appear showing cloning database files..After copying,there will be a option..like password managament..there we hav to set our password..and user name will be default..