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I have installed Oracle 11g (latest version 11.2.0.1.0) on my system(Linux). During the installation, it didn't ask me to set a username or any password. I'm unable to start sqlplus because I don't have the username and password. Can anyone tell me what is the default username and password or what is the default password for SYS or SYSTEM?

I have referred this "What username & password should be entered when connecting to SQL*Plus after installing Oracle 11g?" but my problem is not resolved.

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  • The installer will ask you for the passwords during installation - unless you installed it with a response file. In that case the passwords are stored in your response file. Commented Aug 24, 2018 at 9:35
  • No I am sure they didn't asked any username or password. Commented Aug 24, 2018 at 9:57

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Once upon a time, there were predefined users and their passwords (system/manager and sys/change_on_install).

What you should do now, is to log on to your computer as user who owns Oracle software and - on the operating system command prompt - run

sqlplus / as sysdba

You'll be connected to the database, and then you can modify anyone's password, using

alter user any_username identified by its_password;
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Re-install the 11g, and see every installing step , it will ask to set password for SYSTEM/SYS , enter the new password, proceed to install it. Then hit win+R, type sqlplus, run it, it go with with username, password.

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