1984년 E. F. Codd 박사가 현업부서의 요구를 분석하고 이를 신속하게 처리할 수 있는 새로운 데이터베이스 시스템을 탄생 시켰다. 그것이 바로 R-DBMS이다.
Edgar Frank "Ted" Codd (August 19, 1923 – April 18, 2003) was an English computer scientist who, while working for IBM, invented the relational model for database management, the theoretical basis for relational databases. He made other valuable contributions to computer science, but the relational model, a very influential general theory of data management, remains his most mentioned achievement.[6]