如何使2个应用程序使用SQL Server Express访问相同的mdf文件

Question

I have two .NET applications, one running on 2.0 and the other running on 4.5.

The .NET 2.0 application is the main application where the user inputs data and this runs perfectly. The .NET 4.5 application is a Telerik Reporting site that runs a report based on data entered in the 2.0 application and is receiving the error below

system error 32 (the process cannot access the file because it is being used by another person)

Both applications are using this the connection strings below.

<add name="sqlserver" 
     connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=c:\FolderName\Database.mdf;Integrated Security=True;User Instance=True" 
     providerName="System.Data.SqlClient"/>

I set up SQL Server Express to use windows authentication but I can't seem to get it to work. Any help would be greatly appreciated.

Answer 1

You can't. SQL Server process holds a lock on the file while it's up and running. But alternatively, you can setup a database server and point both apps to the same database. Or have two instances with replication. Database files are good for development, but not to be used in production environments.