Ensure that you could connect through some oracle client app such as sqlplus with the same credentials you used in the app. Normally it happends when the service is not running, or issue appear on multiple database instance active(each may have own listeners).
On Sat, Aug 8, 2009 at 8:59 PM, ZCSI <[email protected]> wrote: > > Would this be a TNS-Names file issue? I don't know much about this > development, but this site gave a few ideas on how to research the > issue, but you'd need access to your boss's machine. > > http://dbaspot.com/portal/oracle/error-guide/2-ora-12541-tns-no-listener-.html > > Can you ping his listener from your machine? Are the versions of > Oracle and drivers the same on both machines? > > Good luck. > Dan > > > On Aug 8, 2:02 am, Karthikeyan R <[email protected]> wrote: > > Hi, > > > > I am developing a small tool using Visual c#2005 which is used to get the > > Oracle Schema version. When I tested it in my machine it works fine. > When > > my boss tested the same in his machine it brings out the message TNS-NO > > LISTENER. He says listener is running in his machine & says the problem > is > > in the code (He is an Oracle DBA and is in this field for nearly 15 > years). > > The code is just a few lines & I think there is nothing wrong in it. I > > don't know how to solve this problem. I have tested it in my machine at > > home, it works good there also. > > > > I am a novice when it comes to Oracle & wondering where the problem could > > be. Please find below the code I have used. > > > > I will be really thankful if some one guide me in solving the issue. > > > > -- > > Thanks & Regards, > > Karthikeyan > -- Santhosh V http://techplex.wordpress.com
