The Examples reference the Northwind database, which is a sample database from Microsoft, used to learn Access. It can be acquired as follows:

Get the Northwind sample database for Microsoft Access

The Northwind sample database for Microsoft Access is not available on the Microsoft Download Center. To install Northwind directly from within Access, do the following things:

Open Access.

Enter Northwind in the Search for Online Templates box, and then select Enter.

On the results screen, select Northwind. A new window opens with a description of the Northwind database.

In the new window, in the File Name text box, provide a filename for your copy of the Northwind database.

Select Create. Access downloads the Northwind database and prepares the file.

When this process is complete, the database opens with a Welcome screen.