Relational DataBase Management System (RDBMS) - W3points | w3schools | TutorialPoint | | w3school

A Relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model. An important feature of relational system is that a single database can be spread across several tables. This differs from flat file database in which each database is self-contained in a single table.