Database Management Basics
Database management is a system for managing the data that is used to support a company’s business operations. It involves storing data, disseminating it to users and applications making edits as needed and monitoring changes to data and protecting against data corruption due to unexpected failure. It is one component of a company’s informational infrastructure that aids in decision-making, corporate growth and 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. ladyway.com.tr They developed into information management systems (IMS) which made it possible to store and retrieve massive amounts of data for a variety of purposes, ranging from calculating inventory to supporting complex financial accounting and human resources functions.
A database consists of a set of tables that organize data in accordance with a specific schema, such as one-to many relationships. It uses primary key to identify records and permits cross-references among tables. Each table has a set of attributes, or fields, that provide information about data entities. Relational models, created by E. F. “Ted” Codd in the 1970s at IBM and IBM, are the most well-known database type today. This model is based on normalizing data to make it more user-friendly. It is also simpler to update data because it doesn’t require changing many sections of the databases.
Most DBMSs can support different types of databases by offering different levels of internal and external organization. The internal level focuses on costs, scalability, and other operational issues such as the design of the database’s physical storage. The external level is the representation of the database in user interfaces and applications. It may include a mix of external views based on different data models and can include virtual tables that are calculated using generic data to enhance the performance.