将空间图形数据存入关系型数据库是当前数据库和地理信息系统领域研究的热点和前沿。本文提出了一种将空间图形数据存入关系型数据库的数据模型，分析了数据模型的数据组织操作、空间图形要素表达以及数据模型体系结构。根据该结构模型，实现了在SQL Server关系型数据库中对空间图形数据进行存储、拓扑运算和拓扑分析的操作。最后，给出了一个采用该结构模型实现的基于SQL Server数据库平台的精简型空间数据库引擎Spatial Database Guide软件产品，及其在土地产权产籍信息系统领域的应用实例。%t is currently one of the research focuses in the fields of database and GIS for Spatial graphical data to storage in RDBMS. A data model of spatial graphical data storage in RDBMS is presented in this paper. The paper analyses the data organization and operation, the expression of spatial graphical features and system structure in the data model. According to the given data structure model, we realize the operation of storage, topologic arithmetic and topologic analysis for spatial graphical data in RDBMS based on SQL Server. Finally, an application example in land registration system is given by using the data model to implement compact spatial database engine based on SQL Server 7.0.
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