Proving completeness of open GIS SQL spatial relationships and operations

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dc.contributor.authorJitkajornwanich, Kulsawasd
dc.contributor.authorElmasri, Ramez
dc.date.accessioned2026-08-06T10:17:32Z
dc.date.available2026-08-06T10:17:32Z
dc.date.issued2017-10-19
dc.description.abstractOpenGIS SQL is a standard for incorporating GIS and spatial concepts into SQL. Two types of methods are part of OpenGIS SQL: (1) boolean methods for topological relationships among spatial objects, and (2) methods for specifying spatial operations. We prove that the complete set of 2-dimensional spatial relationships defined by Egenhofer can all be specified using OpenGIS SQL operations and relationships. Our proof shows how each spatial relationship can be specified using OpenGIS SQL and thus provides users with the means of determining how each spatial relationship can be written in SQL. This provides users with enhanced usability and flexibility by providing the specific OpenGIS conditions for every possible 2- dimensional spatial relationship.
dc.identifier.citation2017 International Electrical Engineering Congress Ieecon 2017, 2017
dc.identifier.doi10.1109/IEECON.2017.8075815
dc.identifier.other2-s2.0-85039934276
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/7889
dc.source2017 International Electrical Engineering Congress Ieecon 2017
dc.subjectGIS
dc.subjectOpen GIS
dc.subjectProof
dc.subjectSpatial database
dc.subjectSpatial relationship
dc.subjectSQL
dc.titleProving completeness of open GIS SQL spatial relationships and operations
dc.typeConference Paper

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