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Thread: Oracle database connect error

  1. 07-02-2008, 07:22 AM #1
    burzinmk
    burzinmk is offline Junior Member
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    Oracle database connect error

    I am unable to connect to an Oracle database which is on my machine using SQL* Plus while connected to my company network. I get the error (TNS-12535: TNSperation timed out). But when I remove the network cable, I am able to connect to the same Oracle database. I am also successfully able to TNSPING the Oracle database server with the network cable connected. I am not sure what network security settings need to be modified, if any.

    Any help is highly appreciated.
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  2. 07-02-2008, 07:52 AM #2
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    PAVB
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    Tell us about your TNSNAMES entry for your local database, is it pointing to localhost?
    Pablo (Paul) Berzukov

    Author of Understanding Database Administration available at amazon and other bookstores.

    Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
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  3. 07-02-2008, 08:08 AM #3
    burzinmk
    burzinmk is offline Junior Member
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    Smile

    This was the entry in my TNSNAMES.ORA file

    XEL9DB =
    (DESCRIPTION =
    (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = H1B-6F301-8Y49)(PORT = 1521))
    )
    (CONNECT_DATA =
    (SERVICE_NAME = xel9db)
    )
    )

    But I am able to connect when I changed the entry to

    XEL9DB =
    (DESCRIPTION =
    (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    )
    (CONNECT_DATA =
    (SERVICE_NAME = xel9db)
    )
    )

    PAVB, Thank you very very much for the hint
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  4. 07-02-2008, 08:54 AM #4
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    PAVB
    PAVB is offline Senior Advisor
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    Cool! I'm glad it worked out.
    Pablo (Paul) Berzukov

    Author of Understanding Database Administration available at amazon and other bookstores.

    Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
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