Updated 2011-11-28: Added reference to the walkthrough of using LocalDB in Visual Studio 2010 and to the new LocalDB Installer.Updated 2011-11-02: Added reference to .NET Framework 4 support for LocalDB in the Q&A section.IntroductionIt gives me great pleasure to introduce a new version of SQL Express called SQL Express LocalDB.LocalDB is created specifically for developers. It is very easy to install and requires no management, yet it offers the same T-SQL language, programming surface and client-side providers as the regular SQL Server Express. In effect the developers that target SQL Se...