Enterprise Manager is not able to connect to the database instance

Posted on 2008-11-13
Last Modified: 2013-12-19
I install the Oracle 10 after that I create database called Test_Db and the SID is TestDb

But when I run the Enterprise Manager I get Database Instance is down and Listener

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Question by:interbus
    LVL 23

    Expert Comment

    The 12541 simply says you don't have a valid connection.  From the looks of things I'd start with the listener process.  Your listener log and your alert log I presume you've already checked?

    Author Comment

    Where is the listener / alert log ?

    LVL 23

    Expert Comment

    alert.log is traditionally found in the BDUMP directory under ORACLE_HOME, for example /ora01/app/oracle/product/10.2.0/db_1/admin/bdump.  Your actual results may differ. :)
    The listener.log is likewise under the ORACLE_HOME, as in .../network/admin .
    LVL 23

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