Database Management Basics

Database management is a system of managing the information that supports a business’s operations. It involves storing data and distribution to users and application programs, modifying it as necessary and monitoring the changes in the data and preventing the data from becoming corrupted due to unexpected failures. It’s a component of a company’s overall informational infrastructure that aids in decision-making and growth for the business as well as compliance with laws such as the GDPR and the California Consumer Privacy Act.

The first database systems were created in the 1960s by Charles Bachman, IBM and others. They developed into information management systems (IMS) which allowed large amounts data to be stored and retrieved for a variety of reasons. From calculating inventory to supporting complicated financial accounting functions, and human resource functions.

A database consists of tables that arrange data according to a certain scheme, such as one-to-many relationships. It utilizes primary key to identify records and allows cross-references between tables. Each table is comprised of a variety of fields, known as attributes, which provide information about the data entities. The most well-known type of database that is currently in use is a relational model, designed by E. F. “Ted” Codd at IBM in the 1970s. The design is based on normalizing the data, making it simpler to use. It also makes it simpler to update data since it eliminates the necessity of changing many sections of the database.

Most DBMSs support multiple types of databases, offering internal and external levels of organization. The internal level addresses cost, scalability and other operational issues, such as the layout of the physical storage. The external level is the representation of the database in user interfaces and applications. It could include a mix of different external views that are based on different models of data and can include virtual tables that are computed with generic data to enhance the performance.

Leave a Comment

Your email address will not be published. Required fields are marked *