Connected to an idle instance.

As an AI language model, I do not have the capability to connect to an idle instance. However, in the context of database management, "connected to an idle instance" means that the Oracle database instance is running, but no user sessions are actively using it. This can occur when the database is started but no applications or users have connected to it yet, or when all user sessions have ended or disconnected. In this state, the database is still operational and can accept new connections, but it is not actively processing any requests.

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Connected to an idle instance.含义

"Connected to an idle instance"是Oracle数据库的一条提示信息，它表示您已经成功连接到Oracle数据库实例，但该实例当前处于空闲状态。也就是说，数据库已经启动，但没有正在执行的活动或请求。这可能是由于用户尚未发起任何请求，或者所有请求都已经完成并且没有新请求等待处理。在这种情况下，您可以通过发出新的数据库请求来激活实例并开始执行操作。

Connected to 10.45.49.128. Escape character is ^]. Connection closed by foreign host

这是一条显示网络连接状态的消息，通常出现在telnet或者SSH等远程终端协议中。"Connected to 10.45.49.128"表示您已经成功连接到了IP地址为10.45.49.128的主机。"Escape character is ^]"意味着如果遇到特殊字符需要转义，可以输入反斜杠(\)后跟'^]'作为转义序列。然而，"Connection closed by foreign host"表明这次连接是由对端（对方的主机）主动关闭的，可能是由于超时、异常或其他原因导致断开连接。在这种情况下，你需要检查网络连接是否稳定，或者尝试重新连接。