Please note this is just a data file. You will have to follow my earlier blog post to create a database without log file read here.
Additionally, this is sample database so install on your development environment. Recently I had seen this on few production databases and when I asked production DBA why they exist, they told me it is ‘for practice’. I suggest you do your practice on your development box and not on a production box.
Every new version of SQL Server should have its own AdventureWorks database. The reason is that SQL Server comes up with new features with every version and most of the new features need a new dataset sample to demonstrate the capabilities of the features. This is the why every version of SQL Server has its own AdventureWorks database.
SQL Server 2014 has many new features and to support that Microsoft has released new AdventureWorks 2014 Sample Database.
You can download Adventure Works 2014 Sample Databases from here.
Reference: Pinal Dave (https://blog.sqlauthority.com)