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

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!