Have Visual Studio installed.

Have SSDT installed.

Have SQL Server
localdb MSSQLLocal DB
localdb\Projects V3
both with master, model, msdb, tempdb

Where and how do you add AdventureWorks

Do I need to install Management Studio.

-k

after the installation of SQL Server 2012 and searching for the sample database AdventureWorks I found that it contains only the "mdf" file to download. First of all, download the AdventureWorks for SQL Server 2012 from the Microsoft. Open the SQL Server Management Studio, then right click on "Databases" and then select "Restore Database"