Spatial database in the current application of geographic information system (GIS) has the very important status in the spatial data engine (SDE) with middle tier and conditions better solve the function of GIS application and data in database integration provide constraining bottleneck problem, and access mode and the "dynamic network system of soil erosion in hubei province" to build a comprehensive database applications. - Spatial databases in the current geographic information systems (GIS) applications with a very important position, Spatial data engine (SDE) technology with an additional intermediate layer's solved the GIS application and the database functions provides of data integration and access models bottleneck constraints, and in the & quot the dynamic of soil erosion in Hubei province network system" to build a comprehensive database of applications with good results.

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