异常DATABASE1.MDF'不能打开，因为它是655版本，此服务器支持版本612和更早版本。不支持降级路径 [英] Exception DATABASE1.MDF' cannot be opened because it is version 655. This server supports version 612 and earlier. A downgrade path is not supported

问题描述

你好我得到这个例外，当我尝试打开我的数据库。我知道，我需要我的数据库升级到655，但有人可以详细的告诉我该怎么做？另外，我想你知道，我已经安装在我的笔记本VS2012但即使当我在运行这个项目我得到相同的异常，所以请帮助我详细的解答。提前
谢谢

Hi I am getting this exception when i try to open my database. I know that i need to upgrade my database to 655 but can someone tell me in detail how to do that? Plus i want you to know that i have VS2012 installed on my laptop but even when i run this project on that i get the same exception so please help me out with detailed answer. Thanks in advance

推荐答案

您必须安装.mdf文件在SQL Server实例。所以VS版本通常是无关紧要的（除非过时VS问题，显然不是这里的问题），你有SQL Server的版本是最重要的。

You have to mount the .mdf file in an instance of SQL Server. So version of VS is typically irrelevant (barring out of date VS issues, clearly not the problem here), which version of SQL Server you have is what matters.

这是说，如果你有安装了SQL Server的相应版本和你要在Visual Studio这个错误，你可能有一个配置问题。 。Visual Studio的不知道哪个SQL Server实例，它应该使用，这样你就可以指定适当的实例

That said, if you've got the appropriate version of SQL Server installed and you're getting this error in Visual Studio, you likely have a configuration issue. Visual Studio doesn't know which SQL Server instance it should use, so you can specify the proper instance.

在Visual Studio中：
工具→选项→数据库工具→数据连接，然后更改SQL Server实例名称到一个合适的。

In Visual Studio: Tools → Options → Database Tools → Data Connections, then change the 'SQL Server Instance Name' to the appropriate one.

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