Database Management Basics

Database Management Basics

Database management is a method of coordinating the information that is used to support a company’s business operations. It involves storing and distributing data it to applications and users and editing it when needed and monitoring changes to data and making sure that data integrity is not compromised due to unexpected failure. It is one component of a company’s total informational infrastructure that aids in 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 invented in the 1960s by Charles Bachman, IBM and others. They evolved into information management systems (IMS), which allowed huge amounts of data to be stored and retrieved for a range of reasons. From calculating inventory, to aiding complex financial accounting functions as well as human resource functions.

A database is a set of tables that store data in accordance with a specific pattern, such as one-to-many relationships. It uses primary keys to identify records, and allow cross-references between tables. Each table is comprised of a set of attributes or fields that provide information about data entities. The most well-known type of database currently is a relational model, created by E. F. “Ted” Codd at IBM in the 1970s. This design is based upon normalizing data to make it more user-friendly. It also makes it easier to update data since it eliminates the need to modify many sections of the database.

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


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