解决 ERROR - ORA-12514: TNS: 监听程序当前无法识别连接描述符中请求的服务

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本文介绍了一种解决Oracle数据库中Listener出现未知错误的方法。通过修改listener.ora文件并添加特定配置来确保数据库服务正常运行。

http://www.cnblogs.com/xufung/archive/2008/08/05/693731.html

服务器莫名其妙的报这个错，之前一直正常，从google获取解决方案，解决之，记录如下：

1. Open the ""<OracleHome>/network/admin/listener.ora" file in the host,and you will see:
   SID_LIST_LISTENER =
   (SID_LIST =
     (SID_DESC =
       (SID_NAME = PLSExtProc)
       (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
       (PROGRAM = extproc)
     )
   )
2. Add the following lines after the 7th line in the above
            (SID_DESC =
       (GLOBAL_DBNAME = ORACLE)
       (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
       (SID_NAME = ORACLE)
      )
3. At last the content of the file become to the following section:
SID_LIST_LISTENER =
   (SID_LIST =
     (SID_DESC =
       (SID_NAME = PLSExtProc)
       (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
       (PROGRAM = extproc)
     )
     (SID_DESC =
       (GLOBAL_DBNAME = ORACLE)
       (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
       (SID_NAME = ORACLE)
      )
   )
4. Save the file and restart the TNSListener service in the host. That's OK!