Oracle - Understanding the tnsnames.ora and listener.ora files

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Dec 12, 2016. I can't seem to find any information on setting up a working oracle connection using a tnsnames file. I am also unclear on what the.

In my previous post, Registering the Oracle Database with the listener, I mentioned the role of the initialization parm LOCAL_LISTENER in dynamic registra

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Question: I need help with this error: ORA-12154: TNS: could not resolve service name. Answer: The ORA-12154 is a very common error, always related.

I have installed Oracle 11g, and I can connect as sysman to the Oracle database, but there is no tnsnames.ora file that I can find. Do I need to generate the tnsnames.

within a few minutes the new database and host are automatically shown in target list of grid control but with an error indication. Select the new database from the list under target-database. This leads to Database instance page. In the.

May 3, 2017. Oracle drivers require very specific connection statements in a unique format, though a TNSNames.ora file may not always be required. For instance, if you have installed only the Tableau-provided Oracle files and do not have a stand- alone Oracle client, the Oracle error messages will still refer to the.

from ORA-12154: TNS:could not resolve the connect identifier specified Cause: A connection to a database or other service was requested.

Add ASM Entries to the tnsnames.ora File on the Client Machine. The next step is to add ASM entries to the tnsnames.ora file on the client machine that will be.

Solved: Forming Oracle database connection using Host, Po. – Dec 4, 2015. Thanks Jason I did that- edited the TNSNAMES.ORA file with the required details. Still I am getting this error. What should I put in the TNS Server name? I have host , port, protocol, SID, username, password. And then I put the user/[email protected]|< tablename> and I got this error. TNS OCI conn.PNG. oracle TNS.

Aug 1, 2016. This error is documented on the Oracle website as: TNS-03505: Failed to resolve name. Cause: The service name you provided could not be found in TNSNAMES. ORA, an Oracle Names server, or a native naming service. Action: Verify that you entered the service name correctly. You may need to ensure.

oracle – Determining location of relevant tnsnames.ora file. – I installed both the 32 and 64-bit Oracle 11g drivers. I search my PC looking for files with the name "tnsnames.ora" and found 3 in the following locations: 1. C.

9 thoughts on “ORA-12545: Connect failed because target host or object does not exist”

Jan 28, 2014. If you only have client tools installed on the computer: Check your connection to a service by executing 'tnsping INSTANCENAME' from the windows command line (Replace INSTANCENAME with the name of a instance as setup in your TNSNames file). Check the root location of your oracle client library in.

I can not connect to my oracle instances while in Report Developer. I get a message that says : REP-0501 Unable to connect to specified database.

For information on other error messages, and to learn more about error logging and the. The TNSNAMES.ORA file must be distributed so that it is available to all.

Error "ORA-12154" Connecting to Oracle When Not Using. – When you try to connect to the same Oracle database using the service name from TNSNames.ora file in the Server parameter and leaving the other two parameters blank.

May 25, 2016. If that doesn't work or you are on Windows, then rename the tnsnames.ora file to tnsnames.ora.old, create a blank text file, save it as tnsnames.ora and manually type in the information to recreate the tnsnames.ora. The point of this exercise is to remove any errors that were present in the old tnsnames.ora.

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