Database Management Basics
Database management is a method of managing the information that supports a business’s operations. It includes data storage and distribution to application programs and users and then modifying it if necessary, monitoring changes in the data and preventing it from being damaged due to unexpected failure. It is a part of the entire informational infrastructure of a company that aids in decision-making as well as corporate growth and compliance with laws like the GDPR and California Consumer Privacy Act.
In the 1960s, Charles Bachman and IBM along with others created the first database systems. They evolved into information management systems (IMS) which enabled the storage and retrieve large amounts data for a wide range of applications, from the calculation of inventory to supporting complicated human resources and financial accounting functions.
A database is tables that store data according to a particular pattern, for example, one-to-many relationships. It uses primary keys to identify records and allows cross-references between tables. public-sector.cseventmanagement.com Each table is comprised of a variety of fields, referred to as attributes, which provide information about the data entities. The most well-known kind of database is a relational model, developed by E. F. “Ted” Codd at IBM in the 1970s. This design is based on normalizing the data, making it more easy to use. It also makes it simpler to update data since it eliminates the need to modify different sections of the database.
Most DBMSs can accommodate multiple types of databases through 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 include a mix of external views based on different models of data and can include virtual tables that are calculated using generic data to improve the performance.