IBM System R

IBM System R is a database system built as a research project at IBM's San Jose Research Laboratory beginning in 1974. System R was a seminal project: it was the first implementation of SQL, which has since become the standard relational data query language. It was also the first system to demonstrate that a relational database management system could provide good transaction processing performance. Design decisions in System R, as well as some fundamental algorithm choices (such as the dynamic programming algorithm used in query optimization), influenced many later relational systems.

System R's first customer was Pratt & Whitney in 1977.

See also

  • Ingres (database)
  • SQL
  • System/38

    • References

  • This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later.

    • External links

  • Brewer, A History and Evaluation of System R (PDF), Berkeley: University of California .
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