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I have 2 connection strings - 1 local and 1 for my main production server. Entity Framework added App=EntityFramework to my local string when I installed it (4.1) - I'm now on 4.3. What does this do - I can't find any reference to it?
Here's my local connection string:
<add name="LocalConnection" providerName="System.Data.EntityClient" connectionString="metadata= res://*/; provider=System.Data.SqlClient; provider connection string=' Data Source=.\SQLEXPRESS; AttachDBFilename=C:\mypath\MyDb.mdf; Integrated Security=True; User Instance=True; MultipleActiveResultSets=True; App=EntityFramework'" /> Just curious!
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Using a non-standard portServer=myServerName,myPortNumber;Database=myDataBase;User Id=myUsername;Password=myPassword; The default SQL Server port is 1433 and there is no need to specify that in the connection string.
Open the edmx (go to properties, the connection string should be blank), close the edmx file again. Open the app. config and uncomment the connection string (save file) Open the edmx, go to properties, you should see the connection string uptated!!
The Metadata parameter contains a list of locations for the EntityClient provider to search for model and mapping files. Model and mapping files are often deployed in the same directory as the application executable file.
Integrated Security actually ensures that you are connecting with SQL Server using Windows Authentication, not SQL Authentication; which requires username and password to be provided with the connecting string.
App and Application Name are simply a way for somebody debugging SQL Server to know which client is connecting to it. If you had a SQL Server that has several apps that used it, it might be hard to know which one was sending which statements. If each app used a different Application Name it would be very clear.
Check this out for more info.
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It's just the synonym of the Application Name.
You can see the Connection String properties outlined here:
http://msdn.microsoft.com/en-gb/library/system.data.sqlclient.sqlconnection.connectionstring.aspx
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