Toward a Visual Query System for Spatio-Temporal Databases
Valéria M.B. Cavalcanti (Federal University of Campina Grande, Brazil), Ulrich Schiel (Federal University of Campina Grande, Brazil) and Claudio de Souza Baptista (Federal University of Campina Grande, Brazil)
Copyright: © 2009
Visual query systems (VQS) for spatio-temporal databases, which enable formulation of queries involving both spatial and temporal dimensions, are an important research subject. Existing results treat these dimensions separately and there are only a few integrated proposals. This chapter presents a VQS called spatio-temporal visual query environment (S-TVQE), which allows the formulation of conventional, spatial, temporal, and spatio-temporal database queries in an integrated environment. With S-TVQE, the user, instead of querying the database by textual query languages will interact with the system by visual operators for the statement of the query conditions. The tool provides a visualization of the results in different formats such as maps, graphics, and tables.