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A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by E. F. Codd of IBM’s San Jose Research Laboratory. Many popular databases currently in use are based on the relational database model.RDBMSs have become a predominant choice for the storage of information in new databases used for financial records manufacturing and logistical information personnel data and much more since the 1980s.