连接Oracle11.2.0.1 提示Ora-12541和Ora-12514错误

刚安装了Oracle11gR2，上来就出现问题了，幸亏上次还有些经验，赶紧给大家分享一下

安装顺序，Oracle11gR2 64Bit 的服务器端，ArcSDE，Oracle11gR2 32Bit 的客户端

但是在建立PL/SQL连接时提示ora-12514  无监听程序错误

解决办法：因为我的机器上已经有固定IP，而在相关的Listener文件和TNSName文件记录的是localhost，所以

1：将这两个文件的localhost修改为用户机器的IP地址

2：修改操作系统的Hosts文件将用户机器的IP地址对应localhost

把这个问题解决后，连接又出现新的问题ora-12541

这个挺奇怪的，查看listener文件感觉少些东西

# listener.ora Network Configuration File: D:\app\Administrator\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:D:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )
    (SID_DESC =
      (GLOBAL_DBANAME = orcl)
      (ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1)
      (SID_NAME = orcl)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.111)(PORT = 1521))
    )
  )

ADR_BASE_LISTENER = D:\app\Administrator
           

但是默认安装是没有

(SID_DESC =
      (GLOBAL_DBANAME = orcl)
      (ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1)
      (SID_NAME = orcl)
    )
           

所以添加上去就可以了，修改自己的SID_NAME和GLOBAL_NAME、ORACLE_HOME就可以了