System R is an experimental data base management system that was designed to be unusually easy to use. System R supports a high-level relational user language called SQL, which may be used by ad hoc users at terminals or by programmers as an imbedded data sublanguage in PL/I or COBOL. This paper describes the overall architecture of the system, including the Relational Data System (RDS) and the Research Storage System (RSS).
机构:
Charles Clifford Dent Hosp, Sheffield, S Yorkshire, England
Barnsley Dist Gen Hosp, Barnsley, EnglandCharles Clifford Dent Hosp, Sheffield, S Yorkshire, England