Oracle远程连接

1.打开tnsnames.ora文件

2.将下面格式的文件粘贴进去：

YGTLT =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 50.2.66.243)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = orcl)
    )
  )