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Author Astrahan, M. M. ♦ Chamberlin, D. D.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword Query language ♦ Data organization ♦ Database ♦ Data structure ♦ Nonprocedural language ♦ Relational model
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.
Description Affiliation: IBM Research Division, San Jose, CA (Astrahan, M. M.; Chamberlin, D. D.)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-08-01
Publisher Place New York
Journal Communications of the ACM (CACM)
Volume Number 18
Issue Number 10
Page Count 9
Starting Page 580
Ending Page 588


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Source: ACM Digital Library