问题描述
我建设需要访问数据库中的ASP.NET应用程序MVC3。我已经成功地建立了数据库，我的本地机器上，一切工作正常，但后来我上载的应用appharbor.com进行测试，现在我再也不能访问数据库。
I'm building an ASP.NET MVC3 application that requires access to a database. I've successfully set up the database on my local machine and everything works fine but then I uploaded the app to appharbor.com for testing and now I can't access the database anymore.
你如何添加一个连接字符串上appharbor.com一个SQLEX $ P $干燥综合征数据库？数据库文件是在位于App_Data文件夹。我一直在试图为天，使其无果工作。我已经添加了SQL Server的附加上appharbor。我没有使用任何实体框架的功能，如果它有助于了解。
How do you add a connection string for a SQLEXPRESS database on appharbor.com? The database file is in located in the App_Data folder. I've been trying for days to make it work without avail. I already added the SQL Server add-on on appharbor. I'm not using any Entity Framework features if it helps to know.
推荐答案
在AppHarbor运行时，你不应该使用应用程序的嵌入式SQL服务器前preSS数据库。每当一个新的应用程序版本部署，任何文件系统的状态丢失，你会失去你的数据库进行任何更改。要了解如何使用Sequelizer附加本指南：
You shouldn't use application-embedded SQL Server express databases when running on AppHarbor. Whenever a new application version is deployed, any filesystem state is lost and you'll loose any changes to your database. Check out this guide on how to use the Sequelizer add-on: http://support.appharbor.com/kb/add-ons/using-sequelizer
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