PL/SQL Developer connecting to a database on a server

1, found in the local installation of Oracle directory oracle\product\11.2.0\dbhome_1\network\admin, it generally has two files can be edited Tnsnames.ora Listener.ora, generally as long as the configuration Tnsnames.ora can. Configure how the content looks like.

# Tnsnames.ora Network Configuration file:d:\app\oracle\product\11.2.0\dbhome_1\network\admin\ tnsnames.ora# Generated by Oracle configuration tools. ORADEV764 =  (DESCRIPTION = (    address_list = (      ADDRESS = (PROTOCOL = TCP) (HOST = 10.181.76.4) (PORT = 1521))    )    (Connect_data =      (service_name = Oradev)    )  ) orcl_190 =  (DESCRIPTION = (    ADDRESS = (PROTOCOL = TCP) (HOST = 10.8.206.190) (PORT = 1521))    (Connect_data =      (SERVER = dedicated)      (service_name = ORCL)    )  )

2, open the PL/SQL developer software, in the Login page drop-down box can choose our configured ORADEV764 orcl_190.