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I have a Code First project with Entity Framework 5.0.0 using localdb created in Visual Studio 2012 Ultimate. Although I can see my class relations in a Class Diagram, how to see a visual diagram of automatic generated database by EF ?
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To open a database diagramDouble-click the name of the database diagram you want to open. Right-click the name of the database diagram you want to open, and then choose Design Database Diagram.
To use code-first for an existing database, right click on your project in Visual Studio -> Add -> New Item.. Select ADO.NET Entity Data Model in the Add New Item dialog box and specify the model name (this will be a context class name) and click on Add. This will open the Entity Data Model wizard as shown below.
Database diagrams in xsd format can be opened in Visual Studio. Select main menu View > SQL Server Object Explorer to connect and view the desired SQL database objects. Connect using credentials to view database objects like Views, tables etc.
There is no way to convert your code-first classes into database-first classes. Creating the model from the database will create a whole new set of classes, regardless of the presence of your code-first classes. However, you might not want to delete your code-first classes right away.
Install Entity Framework Power Tools Beta 4, restart Visual Studio, right-click on the context in your solution view and you'll see a new 'Entity Framework' option in the context menu. Select 'View Entity Data Model' to see a beautiful visual database diagram in Visual Studio. Voilà!
Entity Framework 6 Power Tools: Link
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You can use Microsoft SQL Server Management Studio 2012 with localdb which supports Database Diagrams in they way you may be used to with other SQL Server database.
(localdb)\v11.0, with Windows AuthenticationSource: This older but still relevant article: http://visualstudiomagazine.com/blogs/data-driver/2012/05/visual-studio-11-beta-easier-development-localdb.aspx
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