Tutorial-neu

Spatial Database SystemsTutorial NotesRalf Hartmut GütingFernuniversität HagenPraktische Informatik IVD-58084 HagenGermanygueting@fernuni-hagen.de Ralf Hartmut Güting, Tutorial Spatial Database Systems1 What is a Spatial Database System?Requirement: Manage data related to some space.Spaces:2D • geographic space (surface of the earth, at large or small (or"2.5D") scales)fi GIS, LIS, urban planning, ...3D • the universefi astronomy2D • a VLSI design3D • a model of the brain (or someone's brain)fi medicine3D • a molecule structurefi biological researchCharacteristic for the supporting technology: capability of man-aging large collections of relatively simple geometric objects Ralf Hartmut Güting, Tutorial Spatial Database SystemsTerms:pictorial database systemimagegeometricgeographicspatialA database may containcollections of raster images objects in some of some spacespaceclear identity, location,extentspatial database image databasesystem systemanalysis,feature extraction Ralf Hartmut Güting, Tutorial Spatial Database SystemsMy personal definition of a spatial DBMS:(1) A spatial database system is a database system(2) It offers spatial data types in its data model and query language(3) It supports spatial data types in its implementation, pro-viding at least spatial indexing and efficient algorithms for spatial join.Focus of this tutorial: describe fundamental problems and known solutions in a ...