How to resolve TNS error in Oracle 11g when connect with Navicate) I want to connect Oracle11g with Navicate, but when I make a connection he display a error


  Ora-12514: TNS: Listener does not currently know of service requested in connect descriptor.
Today i solve my problem connection error oracle 11g with navicate

i just change the port number and my TESTDB is connected.

so if any body have same issue kindly check your DB port.