A filter flow visual querying language and interface for spatial databases

Morris, A. J., Abdelmoty, Alia ORCID: https://orcid.org/0000-0003-2031-4413, El-Geresy, B. A. and Jones, Christopher Bernard ORCID: https://orcid.org/0000-0001-6847-7575 2004. A filter flow visual querying language and interface for spatial databases. GeoInformatica 8 (2) , pp. 107-141. 10.1023/B:GEIN.0000017744.85002.4c

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Abstract

In this paper a visual approach to querying in spatial databases is presented. A filter flow methodology is used to consistently express different types of queries in these systems. Filters are used to represent operations on the database and pictorial icons are used throughout the language for filters, operators and spatial relations. Different granularities of the relations are presented in a hierarchical fashion for spatial constraints. The language framework and functions are described and examples are used to demonstrate its capabilities in representing different levels of queries, including spatial joins and composite spatial joins. Here, the primary focus is on the query language itself but an overview

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Computer Science & Informatics
Uncontrolled Keywords:	geographical information systems ; spatial databases ; spatial querying ; visual query languages
Publisher:	Kluwer
ISSN:	1384-6175
Date of First Compliant Deposit:	12 January 2017
Last Modified:	29 Nov 2024 17:15
URI:	https://orca.cardiff.ac.uk/id/eprint/1858

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