Database Management Basics

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

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

A database is a set of tables that arrange data according to a specific pattern, such as one-to-many relationships. It makes use of primary keys to identify records and allow cross-references between tables. Each table has a set of fields, called attributes, that contain information about the entities that comprise the data. Relational models, invented by E. F. “TedCodd Codd in the 1970s at IBM as a database, are the most used database type today. This design is based upon normalizing data to make it easier to use. It also makes it easier to update data by avoiding the need to update different sections of the database.

Most DBMSs can accommodate multiple database types by providing different levels of external and internal organization. The internal level concerns costs, scalability and other operational issues, including the physical layout of the database. The external kromski.com level focuses on how the database is represented in user interfaces and other applications. It can include a mixture of different external views based on different data models and may include virtual table that are computed using generic data to improve the performance.

wm Bio May 17th, 2023

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