Database Management Basics

Database management is a system for managing data that supports an organization’s business operations. It involves storing data, distributing it to applications and users making edits as needed as well as monitoring changes in data and making sure that data integrity is not compromised due to unexpected failure. It is one component of a company’s overall informational infrastructure, which supports decision-making and corporate growth, as well as compliance with laws like the GDPR and the California Consumer Privacy Act.

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

A database is a collection of tables that store data in accordance with a specific pattern, such as one-to many relationships. It makes use of primary keys to identify records and permit cross-references between tables. Each table is comprised of a set of attributes or fields which provide information about data entities. Relational models, created by E. F. “TedCodd Codd in the 1970s at IBM and IBM, are the most well-known database type currently. This design is based on normalizing the data, making it more easy to use. It is also easier to update data since it doesn’t require the modification of many sections of the databases.

The majority of DBMSs are able to support multiple database types by providing different levels of internal and external organization. The internal level focuses on costs, scalability, and other operational concerns, such as the design of the database’s physical storage. The external level is the representation of the database on user interfaces and applications. It could comprise a mix of external views based on different data models and can include virtual tables that are calculated with generic data to enhance the performance.

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