Sin categoría

Database Management Basics

Database management is the method for managing information that aids an organization’s business operations. It involves storing data, distributing it to applications and users making edits as needed, monitoring data changes, and protecting against data corruption due to unexpected failure. It is one component 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 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 supporting complex financial accounting functions as well as human resource functions.

A database is a collection of tables that organizes data in accordance with an established pattern, such as one-to many relationships. It utilizes primary keys to identify records and allows cross-references between tables. Each table has a variety of fields, also known as attributes, that contain information about the data entities. Relational models, developed by E. F. “Ted” Codd in the 1970s at IBM as a database, are the most widely used type of database today. This model is based upon normalizing the data, making it more easy to use. It also makes it easier to update data, avoiding the need to modify various databases.

Most DBMSs can support multiple types of databases, offering internal and external levels of organization. The internal level is focused on costs, scalability and other operational issues, including the physical layout of the database. The external level is the representation of the database on user interfaces and applications. It can include a combination of various external views (based on the various data models) and may also include virtual tables which are generated from generic data to improve performance.

Deja una respuesta

Tu dirección de correo electrónico no será publicada. Los campos obligatorios están marcados con *