在用PL/SQL Developer连接数据库时出现“ORA-12541:TNS:无监听程序”错误. 1.检查listener.log日志发现下面错误:TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Production on 20-9月 -2008 10:25:26 Copyright (c) 1991, 2005, Oracle. All rights reserved. 系统参数文件为D:/oracle/product/10.2.0/db_
1. Question description: if you are setting the oracle client to add a local network service, you may see the dialogue that show you the message (oracle client ORA-12541: TNS: 无监听程序). 2.you can check the listener first, with command (lsnrctl status;