Oracle Database Discussions

I have been through serverExplorer>addconnection>oracleDatabase

but its still giving me this error

ora-12154: TNS:could not resolve the connect identifier specified

I'm using VS 2013 and oracle 12c.

My question is : Is it possible to connect oracle 12c database with visual? is so can someone please help me out?

I'm trying to make windows form (c++) connection with oracle 12c database

i have tested:

RUN>tnsping bu

which game me an ERROR: INS-03505: Failed to resolve name

here is my TNSnames.ora

BU =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = BU)
    )
  )
LISTENER_BU =
  (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
ORACLR_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
    )
  )

here is my sqlnet.ora

SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)

Message was edited by: 3134802