Download SSDT for Visual Studio 2012 and SSDT-BI for Visual Studio 2012
http://msdn.microsoft.com/en-us/data/hh297027
You only get the SQL Server Database Project when you install SSDT for Visual Studio 2012. Install SSDT-BI for Visual Studio 2012 to get the Analysis Services, Integration Services and Reporting Services project types.
Download Team Explorer for Visual Studio 2012
http://www.microsoft.com/en-us/download/details.aspx?id=30656
