Database management is a system for managing information that aids the organization’s business processes. It involves storing data, distributing it to users and applications making edits as needed and monitoring changes to the data and protecting against data corruption due to unexpected failure. It is a part of the informational infrastructure of a business which supports decision-making, corporate growth, and compliance with laws such as the GDPR and California Consumer Privacy Act.

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

A database is a set of tables that organize data in accordance with a specific arrangement, like one-to-many relationships. It utilizes primary keys to identify records and allow cross-references between tables. Each table contains a set of attributes, or fields, that represent facts about data cosbrapim.com.br entities. Relational models, invented by E. F. “TedCodd Codd in the 1970s at IBM as a database, are the most used database type currently. This design is based on normalizing the data, making it easier to use. It is also easier to update data because it doesn’t require changing certain sections of the database.

Most DBMSs can support different types of databases by offering different levels of internal and external organization. The internal level focuses on cost, scalability and other operational issues such as the layout of the physical storage. The external level is the representation of the database on user interfaces and applications. It could include a mix of different external views that are based on different models of data and may include virtual table that are calculated using generic data in order to improve the performance.