When you create a Microsoft Access table, Access will automatically create a primary key to your database table. Still, you can also specify the field you want as the primary key for your database ...

When working on a multidimensional design, every fact table within scope should be handled with care. In an ideal world, each low-level fact table represents the metrics related to a business event.

The column (field) in a relational database that uniquely identifies the row in the table. For example, account number is often a primary key. A "composite primary key" or "super key" is made up of ...

This is an excerpt from Chapter 15 from the book NoSQL for Mere Mortals by Dan Sullivan, an independent database consultant and author. In the chapter, Sullivan takes a look at the four primary types ...