oracle 10g ORA-12514 监听程序无法识别当前的字符串

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# listener.ora Network Configuration File: E:\oracle\product\10.1.0\Db_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = E:\oracle\product\10.2.0\Db_1)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = ORCL)
      (ORACLE_HOME = E:\oracle\product\10.2.0\Db_1)
      (SID_NAME = ORCL)
    )
)

LISTENER =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = WIN-7OT0VFHL2B5)(PORT = 1521))
    )
)

解决办法：     注意上图粗体显示的部分注意路径是否存在
——————
1. 打开文件"<OracleHome>/network/admin/listener.ora" ,你将看到如下的内容:
    SID_LIST_LISTENER =
    (SID_LIST =
      (SID_DESC =
        (SID_NAME = PLSExtProc)
        (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
        (PROGRAM = extproc)
      )
    )
   2. 将下面的语句添加到上面的语句中去。
        (SID_DESC =
        (GLOBAL_DBNAME = ORACLE)
        (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
        (SID_NAME = ORACLE)
       )
   3. 文件的内容则变成了如下所示:
     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. 保存文件，然后重新启动监听服务TNSListener就可以了！