Implementation of a structured English query language
- 1 October 1975
- journal article
- Published by Association for Computing Machinery (ACM) in Communications of the ACM
- Vol. 18 (10) , 580-588
- https://doi.org/10.1145/361020.361215
Abstract
The relational model of data, the XRM Relational Memory System, and the SEQUEL language have been covered in previous papers and are reviewed. SEQUEL is a relational data sublanguage intended for ad hoc interactive problem solving by non-computer specialists. A version of SEQUEL that has been implemented in a prototype interpreter is described. The interpreter is designed to minimize the data accessing operations required to respond to an arbitrary query. The optimization algorithms designed for this purpose are described.Keywords
This publication has 4 references indexed in Scilit:
- SEQUELPublished by Association for Computing Machinery (ACM) ,1976
- Specifying queries as relational expressionsPublished by Association for Computing Machinery (ACM) ,1973
- A data base sublanguage founded on the relational calculusPublished by Association for Computing Machinery (ACM) ,1971
- A relational model of data for large shared data banksCommunications of the ACM, 1970