如题 Hp unix下 从一台机器连接另外一台机器上oracle9i，有时候报此错误？ 我查找到的资料： Cause: The listener could not find any available service handlers that are appropriate for the client connection. Action: Run &lsnrctl services& to ensure that the instance(s) have registered with the listener, and are accepting connections. 但是为什么我之前一直没有这样的问题呢？ 如何解决？ 谢谢！

在Linux上某个网页后出现:This page contains information of a type(application/x-shock ware-flash)that can only be viewed with the appropriate plug-in. 俺四级还没过,就想,一定是用后面这玩意儿看前面这玩意儿,可后面这玩意到哪去下?

I found this tool in the maillist at today's morning. https://launchpad.net/mysql-sandbox Maybe it can help people who have no patient to install and configure multiple instances of mysql with the same version or not.