Database management is the method for managing information that aids the organization’s business processes. It includes data storage and distribution to users and applications and then modifying it if necessary and monitoring changes to the data and preventing it from getting damaged due to unexpected failures. It’s a component of a company’s total informational infrastructure which 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 developed into information management systems (IMS) which allowed large amounts of data to be stored and retrieved for a variety 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 organizes data according to an established pattern, such as one-to-many relationships. It uses primary keys to identify records and allows cross-references between tables. Each table is comprised of a set of attributes or fields which provide information about data entities. mithaiwaala.com The most widely used type of database currently 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 more user-friendly. It is also easier to update data since it doesn’t require changing various databases.
Most DBMSs support different types of databases by offering different levels of internal and external organization. The internal level addresses cost, scalability and other operational concerns, such as the layout of the physical storage. The external level is the way the database is presented in user interfaces and other applications. It could include a mix of various external views (based on the various data models) and may also include virtual tables that are computed from data that is generic to enhance performance.