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Editorial Team
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Editorial Team
Asked: May 30, 20262026-05-30T14:23:29+00:00 2026-05-30T14:23:29+00:00

I installed oracle 11g on my laptop and I am having two problems, I

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I installed oracle 11g on my laptop and I am having two problems, I can not login to sqlplus it wants a password and login which I do not have. Is there any default user name and password I can use?
The other problem is that I can not connect to my localhost its saying

Enterprise Manager is not able to connect to the database instance. The state of the components are listed below

Database Instance
Host    
Port    
SID 
Oracle Home 

How can I overcome this?

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  1. Editorial Team
    Editorial Team
    2026-05-30T14:23:30+00:00Added an answer on May 30, 2026 at 2:23 pm

    To log in as sysdba, make sure you are connected as the Oracle user (whichever one you chose), and type:

    $ sqlplus / as sysdba
    

    No password required, as long as you’re the right user.

    To be able to connect to the database, it must be started, and the listener service must also be started. To check listener status:

    $ lsnrctl status
    

    To start/stop it, replace status by start or stop. If you installed named listeners, append the listener name to the lsnrctl commands above (i.e. put the listener name after the status/start/stop command).

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