问题描述
我通过系统上的sqldeveloper连接到远程oracle数据库。突然电力下降，我不得不重新启动系统。
现在，当我尝试连接到远程oracle数据库时，它会抛出一条错误消息：
I had made connection to the remote oracle database through sqldeveloper on my system. Suddenly the power went down and I had to restart the system.Now, when I am trying to connect to the remote oracle database, it's throwing an error message:
网络适配器无法建立连接。
供应商代码20
The Network adapter could not establish the connection.Vendor code 20
任何人都可以帮我解决这个问题。
Can anyone help me solving this problem.
推荐答案
Re：SQL DevErr：网络适配器无法建立连接VenCode20
发布时间：2011年12月7日上午3:23回复：MehulDoshi回复
Re: SQL DevErr:The Network Adapter could not establish the connection VenCode20Posted: Dec 7, 2011 3:23 AM in response to: MehulDoshi Reply
这对我有用：
打开新建/选择数据库连接对话框，尝试将连接类型设置从基本更改为TNS，然后选择网络别名（对我来说：ORCL）。
Open the "New/Select Database Connection" dialogue and try changing the connection type setting from "Basic" to "TNS" and then selecting the network alias (for me: "ORCL").
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