CategoryHierarchies.com

Relational databases are a type of database management system that organizes data into one or more tables, with each table consisting of columns and rows. The tables are related to each other through common columns or keys, enabling efficient data retrieval and manipulation based on relationships between the data. This structure allows for data integrity, consistency, and scalability, making it a popular choice for many applications that require structured data storage and management, such as enterprise resource planning (ERP) systems, customer relationship management (CRM) software, and online transaction processing (OLTP) systems. The relational model was introduced in the 1970s by Dr. E.F. Codd and has since become a widely adopted standard for data management in various industries.