Database Management Basics

Database management is the method for managing information that aids the business operations of an organization. It involves storing data, distributing it to applications and users and editing it as required as well as monitoring changes in data and stopping data corruption due unexpected failure. It is one component of a company’s informational infrastructure that aids in decision-making and growth of the company as well as compliance with laws such as the GDPR and the California Consumer Privacy Act.

In the 1960s, Charles Bachman and IBM along with other companies developed the first database systems. They evolved into information management systems (IMS), which allowed large amounts data to be stored and retrieved for a range of purposes. From calculating inventory to supporting complicated financial accounting functions, and human resource functions.

A database consists of a set of tables that organize data in accordance with a specific pattern, for example, one-to-many relationships. It utilizes primary keys to identify records and allow cross-references between tables. Each table has a variety of fields, known as attributes, which provide information about the entities that comprise the data. The most popular type of database that is currently in use is a relational model developed by E. F. “Ted” Codd at IBM in the 1970s. This model is based upon normalizing the data, making it more easy to use. It is also simpler to update data since it doesn’t require the modification of certain sections of the database.

Most DBMSs can accommodate multiple types of databases through different levels of external and internal organization. The internal level is concerned with the cost, scalability, and other operational issues, like the physical layout of the database. The external level determines how the database is presented in user interfaces and other applications. It could comprise a mix of different external views that are based on different data models. It may also include virtual tables that are computed with generic data to enhance the performance.

Leave a Comment

Your email address will not be published. Required fields are marked *