Database is a collection of structured data. It is a computer system that stores, organizes, sorts, and retrieves data or information. A computer program or a person can obtain this information using query language. It contains any type of data including words, numbers, images, videos, and files.
A highly efficient database is an important part of any organization. It is primarily used in decision-making processes but its role is also to support internal operations of companies and to store interactions with customers and suppliers. It also includes engineering or economic models. It encompasses digital library systems, travel booking systems, and inventory systems.