You can create database projects in Solution Explorer to store database references, run SQL scripts and queries, and use command files to run multiple SQL scripts.
The Database Project template creates the following folders in Solution Explorer:
Change scripts record a series of modifications you intend to make to selected database tables. They are useful because they can be run at another time if you do not have security permissions to alter a database or if you are not ready to update the database. For more information, see How to: Generate Change Scripts.