P.W. Trinder, D.K.C. Chan, and D.J. Harper. Improving Comprehension Queries in PS-algol. In Proceedings of the 1990 Glasgow Database Workshop, pages 103--119, U.K., 1990. University of Glasgow. Home/Search Document Not in Database Summary Related Articles Check |
This paper is cited in the following contexts:
Comprehensions, a Query Notation for DBPLs - Trinder (1990) (23 citations) (Correct)
....possible. To illustrate recursion and computation two well known bill of material queries are expressed as comprehensions. A suite of list comprehension transformations that emulate all of the major relational query optimisations has been developed [25] and two of the transformations demonstrated [27]. To illustrate the optimisations two example transformations are given. Even queries This work supported by both the SERC Bulk Data Types Project and the ESPRIT FIDE Project (BRA 3070) entailing computation or recursion can be improved using a combination of comprehension transformation and ....
....integrate cleanly as expressions in a procedural or object oriented language they are simply transformed into a sequence of function calls or method invocations. A preprocessor using this technique has been constructed and permits the inclusion of comprehensions in PS algol programs [27]. The interaction between comprehensions and side effecting expressions is quite subtle. Many of the optimisations described in the next section are correct if the functions invoked have no side effects or if the side effects have certain properties, e.g. being commutative. It is hard for a ....
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Trinder P.W. Chan D.K.C. Harper D.J. Improving Comprehension Queries in PS-algol. Proceedings of the 1990 Glasgow Database Workshop, Glasgow, Scotland (March 1990).
Object-Oriented Query Language Design and Processing - Chan (1994) Self-citation (Chan) (Correct)
....University under the supervision of Phil Trinder, David Harper, and Ray Welland. A fair amount of the materials presented in Chapter 2, 3, 4, and 8 of this thesis has been published before in various technical reports, workshop proceedings, conference proceedings, and the Computer Journal [TCH90, CHT92a, CHT92b, CT93, CHT93a, CHT93b, CK94, CT94a, CT94b, CTW95] All the papers involve more than one author and the co authors include Phil Trinder, David Harper, Ray Welland, and David Kerr. However the author is responsible for the majority of the technical substance of these papers and of ....
....context of a formal data model and has not been integrated 1.2. Contributions 3 into a running system. However given a suitable implementation platform, it is believed that the query language and query algebra can be implemented since a similar language and its optimisation was prototyped before [TCH90] 1.2 Contributions ONTOS SQL Object SQL ORION Object Comprehensions Canonical Algebra optimisation optimisation O2SQL Figure 1.2: Query Language Processing. The specific contributions documented in this thesis are listed below and the inter relationship between the parts of the work ....
[Article contains additional citation context not shown here]
P.W. Trinder, D.K.C. Chan, and D.J. Harper. Improving Comprehension Queries in PS-algol. In Proceedings of the 1990 Glasgow Database Workshop, pages 103--119, U.K., 1990. University of Glasgow.
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