oracle连接新服务配置

tnsnames.ora文件
E:\oracle10g\network\admin\tnsnames.ora

添加

MDM_DB =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 172.17.250.88)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = mdm)
    )
  )