An Empirical Study of Spatial Datatypes and Their Integration into Query Language

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Provided by: International Journal of Computer Applications
Topic: Data Management
Format: PDF
With the expeditious development in Geographic Information System (GIS) and their applications, leads to the increment in the geographical databases that have been developed by different vendors. However, the amalgam of data and accessing is still havoc for the development of GIS. Spatial or geometric data types provide basic abstraction for modeling the geometric structure of objects in space and building the relationships among objects, properties and their operations. Operations on spatial data types include spatial operations on the area of a region, topological relationships checking the relative position of spatial objects to each other like overlap, meet, disjoint, or inside and cardinal direction relationships like north or southeast.
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