rac客户端 TNSNAMES.ORA 配置

 racdb1 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 200.120.75.153)(PORT = 1521))
    )
   (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = racdb)
      (INSTANCE_NAME = racdb1)
    )
  )

racdb2 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 200.120.75.154)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = racdb)
      (INSTANCE_NAME = racdb2)
    )
  )