A database is information that is set up for easy access, management, and updating. Computer databases typically store aggregations of data records or files that contain information, such as sales transactions, customer data, financials, and product information.
Databases are used for storing, maintaining, and accessing any sort of data. They collect information on people, places, or things. That information is gathered in one place so that it can be observed and analyzed. Databases can be thought of as an organized collection of information.