A database stores pieces of information or facts in an organised way. Understanding how to use and get the most out of databases requires us to understand that method of organisation.
The principal storage units are called columns, or fields, or attributes. These will house the basic components of data that your content can be broken down into. When deciding which fields to create you need to think generically about your information. For example, drawing out the common components of the information that you will store in the database, and avoiding the specifics that distinguish one item from another.
Look at the following example of an ID card to see the relationship between fields and their data: