Database Management Basics
Database management is the method to manage information that is essential to the business operations of an organization. It involves storing and distributing data it to users and applications making edits as needed and monitoring changes to data and making sure that data integrity is not compromised due to unexpected failure. It is a part of an organization’s overall informational infrastructure that supports decision-making and corporate growth, as well as compliance with laws like the GDPR and the California Consumer Privacy Act.
In the 1960s, Charles Bachman and IBM among others came up with the first database systems. They developed into information management systems (IMS) which allowed massive amounts of data to be stored and retrieved for a variety of reasons. From calculating inventory, to aiding complicated financial accounting functions, and human resource functions.
A database is a set of tables that store data in accordance with a specific scheme, such as one-to-many relationships. It utilizes primary keys to identify records, and allow cross-references between tables. Each table contains mionic.app a set of fields, referred to as attributes, that represent facts about data entities. The most well-known type of database today is a relational model created by E. F. “Ted” Codd at IBM in the 1970s. This design is based on normalizing the data, making it easier to use. It also makes it simpler to update data, avoiding the necessity of changing several databases.
Most DBMSs can support multiple types of databases, offering internal and external levels of organization. The internal level deals with costs, scalability, and other operational issues including the layout of the database’s physical storage. The external level is the representation of the database on user interfaces and applications. It can include a combination of different external views (based on the various data models) and could also include virtual tables which are generated from generic data in order to improve performance.
