TEST{#服务名} =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.12{#服务器ip})(PORT = 1521{#数据库连接端口号}))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = DATATEST{#数据库名称})
    )
  )