What is a relational database management system (RDBMS)?
A relational database management system stores its information in the form of tables and then links or “relates” those table to one another to provide answers to users’ diverse questions. Relational databases are a very powerful means of organizing the information within a database. The table-like structure ensures great flexibility and an inherent analytical capability which is advantageous for all users. Relational databases were invented around 1970 (Codd), but were not used until 1985 when computer technology caught up with the idea. There are / were many relational database management systems on the market today such as ORACLE, DBase, RDB, Paradox, Focus, etc.