2010•Journal of Harbin University of CommerceRequires access

Spatial data query and optimization of GIS

Xia Hong-shan

Abstract

Spatial database is the core of GIS(Geographic Information System),while spatial data query is the key of the spatial database,its performance determines the efficiency of the whole spatial database.Query efficiency is always the bottleneck of GIS,so the studies of query and optimize of spatial data have become significant.To improve the capability of spatial data query,this paper discusses on spatial index,algorithm for query processing and spatial data accessing technology.

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Available abstract

Key concepts: Spatial query, Spatial database, Computer science, Query optimization, Spatial analysis, Bottleneck, Sargable, Data mining