Database Management Basics

Database management is a system of managing information that is used to support a company’s business operations. It involves storing and distributing data it to users and applications, editing it as needed as well as monitoring changes in data and stopping data corruption due unexpected failure. It is an element of a company’s overall informational infrastructure that aids in decision-making, corporate growth and compliance with laws such as the GDPR and the California Consumer Privacy Act.

The first database systems were invented in the 1960s by Charles Bachman, IBM and others. They evolved into the information management systems (IMS) that made it possible to store and retrieve large amounts information for a range of uses, from calculating inventory to supporting complicated human resources and financial accounting functions.

A database is a set of tables that store data according to the specific scheme, for example one-to many relationships. It utilizes primary key to identify records, and also allows cross-references among tables. Each table is comprised of a set of fields, referred to as attributes, that represent facts about data entities. Relational models, invented by E. F. “Ted” Codd in the 1970s at IBM as a database, are the most popular database type in the present. The concept is based on normalizing data to make it more user-friendly. It is also easier to update data since it doesn’t require the modification of many sections of the databases.

The majority of DBMSs support a variety of databases and offer different internal and external levels of organization. The internal level is focused on cost, scalability, as well as other operational issues like the physical layout of the database. The external level is the way the database is displayed in user interfaces and other applications. It may include a mix of various external views (based on different data models) and could also include virtual tables that are computed from generic data in order to improve performance.

Lascia un commento

Il tuo indirizzo email non sarà pubblicato. I campi obbligatori sono contrassegnati *