Database Management Basics

Database management is a method of managing the information that supports a business’s operations. It involves storing data, distributing it to users and application programs, modifying it as necessary and monitoring changes to the data and preventing the data from becoming damaged by unexpected failure. It’s a component of a company’s informational infrastructure that aids in decision-making and growth of the company as well as compliance with laws like the GDPR and the California Consumer Privacy Act.

The first database systems were developed in the 1960s by Charles Bachman, IBM and others. They developed into information management systems (IMS), which allowed massive amounts of data to be stored and retrieved for a range of reasons. From calculating inventory to aiding complex financial accounting functions and human resource functions.

A database consists of tables that organize data according to some schema, such as one-to many relationships. It uses the primary key to identify records and allow cross-references between tables. Each table has a variety of fields, referred to as attributes, that provide information about the data entities. Relational models, developed by E. F. “TedCodd Codd in the 1970s at IBM and IBM, are among the most used database type in the present. This design is based on normalizing data to make it simpler to use. It also makes it easier to update data without the need to change several databases.

Most DBMSs can accommodate multiple database types by providing different levels of external and internal organization. The internal level deals with the cost, scalability, and other operational issues, such as the physical layout of the database. The external level determines how the database is displayed in user interfaces and other applications. It could comprise a mix of various external views based on different data models. It may include virtual table that are computed using generic data to improve the performance.

Leave a Comment

Your email address will not be published.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