空间数据库在当前的地理信息系统(GIS)应用中具有非常重要的地位,空间数据引擎(SDE)技术则以附加中间层较好地解决了GIS功能应用与数据库集成中数据提供与访问模式方面的制约瓶颈问题,并在“湖北省水土流失动态络系统”构建综合数据库的应用中取得良好效果。-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 solved GIS application and database functions of data integration and access models bottleneck constraints, and in the " dynamic of soil erosion in Hubei province network system"　to build a comprehensive database of applications with good results.