Check out the latest Visual Studio third-party add-ons, including one that helps you edit your database's data and properties during a debug session.

Microsoft recently updated SQL Server Data Tools (SSDT) with support for Visual Studio 2012, improved LocalDB functionality and new SSDT Power Tools. SSDT, if you're unfamiliar with it, is a ...

I've been using the Schema and Data Compare tools built into Visual Studio. They seem to work pretty nicely and will generate change scripts. Might be worth a look if you've already got Visual Studio.