sqlplus 登陆远程oracle主机

D:\oraclexe\app\oracle\product\10.2.0\server\NETWORK\ADMIN

tnsnames.ora

XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = spark)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )

ORA254 =
(DESCRIPTION =
	(ADDRESS_LIST =
	  (ADDRESS = (PROTOCOL = TCP)(HOST = server-name)(PORT = 1521))
	)
	(CONNECT_DATA =
	  (SID = Test)
	)
)
EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
  )

ORACLR_CONNECTION_DATA = 
  (DESCRIPTION = 
    (ADDRESS_LIST = 
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE)) 
    ) 
    (CONNECT_DATA = 
      (SID = CLRExtProc) 
      (PRESENTATION = RO) 
    ) 
  ) 

　　ORA254为新增加的主机配置信息：

打开sqlplus 输入：

 CONNECT SYS@ORA254 AS SYSDBA

密码:***

连接成功。

诊断：使用tnsping命令。 cmd ->

$ tnsping ora254

output:

TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 22-9月 -

2011 14:03:43

Copyright (c) 1997, 2005, Oracle.  All rights reserved.

已使用的参数文件:

D:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora

已使用 TNSNAMES 适配器来解析别名

Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)

(HOST = server-PC)(PORT = 1521))) (CONNECT_DATA = (SID = Test)))

OK (20 毫秒)