省级地理国情普查数据库矢量数据更新模式的探讨

Discussion on the Update Pattern of the Data Base Vector Data in the Provincial Geographic National Census Data

随着国家、省两级普查成果数据库管理系统的建设完成,数据库中矢量数据的高效更新成了迫切需求。针对这一需求,在分析两级数据库相互联系和增量数据集特点的基础上,提出了能够满足两级数据库更新要求的矢量数据更新模式,并对本更新方式的实现进行了初步的探讨和尝试。

With the national and provincial two Geographic National Census results database management system to complete the construction.Efficient updating of vector data in database is an urgent need.Aimed at this need.Based on the analysis of the relationship between the two level database and the characteristics of the incremental data sets.A vector data set updating method is proposed which can meet the requirements of the two level database update.And a preliminary attempt has been made on this update method.