When you go to the grocery store, notice the receipts show itemization of what you buy. Many grocery stores have special club cards for consumers to use for discounts. These cards keep track of your personal data and what specific types of groceries and household goods you re purchasing. This data is kept in a database. Databases touch many aspects of our lives.
Most employers keep payroll information and customer information in databases.
The list goes on and on. As a database professional, it s good to have an understanding of the various types of databases in the field.