【摘要】 提出了一种将GML文档存储到空间数据库的存储映射模型G2SDB ,同时通过定义边表 ,保留GML文档的部分结构信息 ,有利于处理GML查询中的路径表达式 ,提高查询操作的效率 ,也有利于GML文档的重构。更多还原

【Abstract】 This paper proposes a new storage model called G2SDB to store GML data into a spatial database. The authors converts GML application schema to a tree named schema tree. Then the schema tree is inlined according to the predefined inlining rules. On the basis of the predefined mapping rules, the mapping between the inlined schema tree and a spatial database schema is determined.更多还原