IBM System R was an experimental relational database management system developed as an IBM research project. It is regarded as the first implementation of SQL and was designed to evaluate the practicality of relational database concepts and high-performance transaction processing on IBM hardware. Its design introduced many techniques that later became standard in relational database systems.
- Developer
- Country of Origin
- US
- Start Year
- 1972
- End Year
- 1979
- Project Type
- Industrial Research
- Operating System
- MVS
- License
- Proprietary
IBM System R was an experimental relational database management system developed as an IBM research project. It is regarded as the first implementation of SQL and was designed to evaluate the practicality of relational database concepts and high-performance transaction processing on IBM hardware. Its design introduced many techniques that later became standard in relational database systems.
History[03][04][05]
IBM System R began as a research project at IBM's San Jose Research Laboratory in 1974. An early prototype known as "Phase Zero" was developed during 1974–1975 before the full System R implementation was built. Pratt & Whitney became the first external installation in 1977.
The project directly influenced IBM relational products including SQL/DS and Db2, as well as many non-IBM database systems.
Citations
5 sources- The relational database | IBM ibm.com
- IBM System R - Wikipedia wikipedia.org
- https://archive.computerhistory.org/resources/access/text/2013/05/102658267-05-01-acc.pdf computerhistory.org
- A History and Evaluation of System R for CACM - IBM Research ibm.com
- https://people.eecs.berkeley.edu/~brewer/cs262/SystemR.pdf berkeley.edu