Towards a Visual Query System for Spatio-Temporal Databases

Towards a Visual Query System for Spatio-Temporal Databases

Valéria M.B. Cavalcanti (Federal University of Campina Grande, Brazil)
DOI: 10.4018/978-1-59904-534-4.ch009


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.

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