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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/6550

Title: Reflective programming in the relational algebra
van Gucht, D.
Vossen, G.
Issue Date: 1996
Publisher: Academic Press, Inc.
Citation: Journal of computer and system sciences, 52(3). p. 537-549
Abstract: This paper introduces a reflective extension of the relational algebra. Reflection is achieved by storing and manipulating relational algebra programs as relations and by adding a LISP-like evaluation operation to the algebra. We first show that this extension, which we call the reflective algebra, can serve as a unifying formalization of various forms of procedural data management which have been considered in database systems research. We then study the expressive power and complexity of the reflective algebra. In particular, we establish a close correspondence between reflection and bounded looping, and between tail-recursive reflection and unbounded looping. These correspondences yield new logical characterizations of PTIME and PSPACE.
URI: http://hdl.handle.net/1942/6550
DOI: 10.1006/jcss.1996.0040
Type: Journal Contribution
Appears in Collections: Research publications

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