Database Management Basics

Database Management Basics

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

In the 1960s, Charles Bachman and IBM among others developed the first database systems. They evolved into the information management systems (IMS) which allowed for the storage and retrieve huge amounts of data for a wide range of uses, from calculating inventory to supporting complex human resources and financial accounting functions.

A database is a set of tables that are organized according to some arrangement, like one-to-many relationships. It makes use of primary keys to identify records and permits cross-references between tables. Each table has a set of fields, also known as attributes, that provide information about the data entities. The most well-known type of database that is currently in use is a relational model created by E. F. “Ted” Codd at IBM in the 1970s. The concept is based on normalizing data to make it simpler to use. It also makes it simpler to update data since it eliminates the necessity of changing different sections of the database.

Most DBMSs can support various types of databases, by providing different levels of internal and external organization. The internal level is focused on costs, scalability and other operational issues, such as the physical layout of the database. The external level is how the database is displayed in user interfaces and other applications. It may include a mix of various external views based on different data models and could include virtual tables that are computed using generic data to enhance the performance.

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