Spatial Data Warehouse Technology The Key Technologies In Land Information Management In Research And Practice

Spatial Data Warehouse is the combination of GIS spatial technology and traditional data warehouse technology. It extends the application of GIS, it playing an increasingly important role in many kind of area, especially in the temporal and spatial evolution and sustainable development research..In this paper,we integrated multi-source, heterogeneous, multi-dimensional both space and property data with Spatial Data Warehouse,and study the methods and content of data integration. Depth study and implementation of applications based on digital land spatial data warehouse technologies and systems.In the start of this paper, it described the theory and technical support of spatial data warehouse, Analysis jsfhof the spatial data warehouse characteristics and difficulties.Thesis then combined figure of Homeland characteristics of spatial data warehouse design research, including subject identification, and the concept of the model building etc.After building the conceptual model, Studied the spatial data warehouse build process,and has done a more in-depth research on spatial ETL and meta-database. Achieve a response to spatial data extraction and conversion of the ETL tool.Finally,This paper have given examples about Spatial Data Warehouse Construction and application.This thesis work and research for the present implementation of our country's "golden soil project" and other relevant spatial data warehouse integrated system has a larger reference value.