Representation and management of spatiotemporal data in object-relational databases

Authors:
Luís Matos;José Moreira;Alexandre Carvalho
Affiliations:
University of Aveiro, Santiago, Portugal;University of Aveiro, Santiago, Aveiro, Portugal;University of Porto, Porto, Portugal
Venue:
Proceedings of the 27th Annual ACM Symposium on Applied Computing
Year:
2012

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Abstract

This paper deals with the design and implementation of a data model and operations for dealing with continuously changing spatial data in object-relational DBMS. The data model relies on abstract data types but we introduce modifications to the internal structure of the spatiotemporal data representations proposed in the literature, to reduce storage requirements and to enable the reutilization of data during the execution of the queries. We show how to implement spatiotemporal operations relying on the spatial functions released by the underlying DBMS and how to use the alternative data representations to reduce the volume of temporary data created in the evaluation of spatiotemporal operations. We also discuss on the advantages and disadvantages of the proposed solutions.