摘要
大量GML空间数据的出现,使其有效性存储管理面临严峻挑战。鉴于GML空间数据XML格式编码的特点,本文分析并借鉴XML数据存储方式,提出GML空间数据的存储构建于原生XML数据库之上是一种理想的选择。基于开源原生XML数据库并充分考虑GML索引构建、GML空间、非空间数据查询所采用的机制、算法、策略等情况,本文提出GML空间数据的原生存储模型以细粒度为宜。本文进一步着力研究、设计了原生GML空间数据库系统架构体系,给出了系统定义、系统架构与GML空间数据存储、索引、查询等原理与技术方法。
Severe challenges are faced by GML spatiai data effective storagemanagement while masses of GML spatial data are being produced. Considering XML format encoding style of GML spatial data, this paper proposed that it is a perfect choice of constructing GML spatial data storage on native XML database, after analysing and borrowing ideas from XML data storage model. Based On otoen source native XML database, and fully considering construction of GML index, adopting mechanism, algorithm and. strategy of GML spatial and non-spatial data query, this paper proposed that fine-grained storage is nice to native storage model of GML spataial data. And it further researched and designed a kind of architecture of native GML spatial database system, the system definition. system structure, and theories and technical methods of GML spatial data storage, index and query were all well discussed.
出处
《网络安全技术与应用》
2012年第8期55-58,共4页
Network Security Technology & Application
