AHHHHHHH! Install cannot connect to database error!

I am so frustrated with application server install...
I'm trying to install SOA 10.1.3, advanced option, 1st option
When it asks me for database account, host name, service name I enter all this info in then i click next...
This is when I get the Install cannot connect to database error even though db i'm trying to connect to is on same machine!
Anyone have any ideas other than laying off medication as to what the problem is?

Check the requirement chapter in the Installation Guide, but it should be similar to:
127.0.0.1               localhost.localdomain localhost
192.168.1.88            yourserver.domain.com yourserverHowever, I don't think you should change any of this after a installation...

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    - I cannot simply ignore this question, because I cannot connect without this information.
    - But I don't know how I can configure a host string for local access.
    - And I don't know if there's already a default host string for me to use after installing Oracle 10g, because I have no practice in database configuration, since I'm a developer.
    Please help me.
    Best regards,
    Franklin Goncalves Jr.

    Hi ,
    Few pointers which may help you , but a small caveat all instructions pertaining to way we do internally in oracle , so there could be some mismatch at customer end , but more or less logic should be same , in case you can't any step revert back :
    1. When Db asks you for connect string essentially it asks for the complete description of the db to connect including :
    Db server machine name / ip - that can be resolved from your system if it's a remote server .
    Username , Password ,
    Db Instance Name - TnsAlias mentioned in TnsNames.ora .
    Now there are few Env. variables that you need to set before running / starting an oracle db instance .
    1. Oracle_Home - Essentially Oralce Installation directory .
    2. Oracle_sid - unique identifier for Oracle Instance .
    3. For OracleDb only set T_Work and TNS_ADMIN env. variables as %Oracle_Home%\work directory and place your Listener.ora file in that folder .
    4. Make your initial parameter file init<Oracle_Sid>.ora in %Oracle_Home%\database -- default location .
    5. Create Oracle Instance specific services to run on a Windows machine , essentially they will be two and default nomenclature is :
    Oracle Service - OracleService<Oracle_Sid>
    Listener Service - Oracle<oracle_sid>TnsListener
    Now in %Oracle_Home%\bin directory you have couple have tools to help you in whole process including lsnrctl.exe , tnsping.exe , sqlplus.exe .
    and onec you start oracle instance like this :
    SQlPlus "/as sysdba" -- OS Authentication
    --- Connected to Idle instance
    Sql> startup --> this will take default parameter file
    Check out dump location for log and trace files generated if enabled .
    Now client setting :
    1. This is the place where you need appropriate connect string with all components as mentioned above .
    Check out any good site for exact syntax , but you need to make sure regarding client you are using for e.g:
    ODP.Net , Java Driver etc .
    For Client few important settings :
    Execution directory should contain tnsnames.ora
    Create T_WORK and TNS_ADMIN for execution directory .
    check out for listener connectivity using :
    tnsping <TnsAlias>
    Imp -- Include all relevant stuff in System PATH for execution from anywhere .
    Once it connects tehn you can use appropriate username / password for connecting with appropriate connection string .
    Normally while installing oracle you would have set the username and password to be changed later .
    or otherwise onec you log in as sysdba, you can create new username/password and give it sysdba permissions .
    Also imp. thing for connecting from a remote system is having Sqlnet.ora authentication file in client's T_WORK and TNS_ADMIN .
    I hope it helps upto some extent .
    regards ,
    Mrinal

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