If you are using SQL Server there are good chances that you are familiar with AdventureWorks. AdventureWorks is a Sample Database shipped with SQL Server and it can be downloaded from CodePlex site. AdventureWorks have replaced Northwind and Pubs from the sample database in SQL Server 2005. The Microsoft team keeps updating the sample database as they release new versions. I use the AdventureWorks database for most of my example, as it is easy to use sample database which is accessible for most of the people out there.

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 Advetureworks 2014 Sample Database.

You can download Adventure Works 2014 Sample Databases from here.

Here is a quick tutorial how one can install the AdventureWorks database on your server.

Reference: Pinal Dave (http://blog.sqlauthority.com)