Database Management Basics

Database management is a method of coordinating the information that is used to support a company’s business operations. It involves storing data, disseminating it to users and applications making edits as needed, monitoring data changes, and stopping data corruption due unexpected failure. It is a component of the informational infrastructure of a company which supports decision-making as well as corporate growth and compliance with laws like the GDPR and the California Consumer Privacy Act.

In the 1960s, Charles Bachman and IBM among others developed the first database systems. They evolved into information management systems (IMS), which allowed massive amounts of data to be stored and retrieved for a range of purposes. From calculating inventory to supporting complex financial accounting functions as well as human resource functions.

A database is a collection of tables that organizes data according to a specific pattern, such as one-to many relationships. It uses primary keys to identify records, and allow cross-references between tables. Each table contains a number of fields, referred to as attributes, that provide information about the data entities. Relational models, invented by E. F. “TedCodd Codd in the 1970s at IBM and IBM, are the most widely used type of database today. This model is based on normalizing the data, making it easier to use. It is also simpler to update data since it doesn’t require changing various databases.

Most DBMSs support multiple types of databases and offer different internal and external levels of organization. The internal level is focused on the cost, scalability, and other operational issues, such as the physical layout of the database. The external level is how the database appears in user interfaces and other applications. It can include a combination of different external views (based on different data models) and may also include virtual tables which are generated from data that is generic to enhance performance.

Leave a Reply