title: Getting an Error when trying to connect Visual Studio application to Oracle
body: <p>I am new to Oracle.I amy trying to connect my Visual Studio 2010 VB application with an Oracle Server on a remote server.</p>
  
  <p>I configured my tnsnames.ora by proving the host name and service name. When I tried to test the connection using the Add Connection functionality in Server Exploreer I got the following error:</p>
  
  <p>ORA-12514: TNS:listener does not currently know of service requested in connect descriptor </p>
  
  <p>Does this mean the values I entered into tnsnames.ora are wrong. Or do I need to configure anyother documents- listener.ora for example? I  have not made any other changes except what I have mentioned above. Please let me know how to resolve this issue as it is time sensitive.</p>
  
  <p>Thanks</p>