高技术通讯2013，Vol.23Issue(1)：55-59,5.DOI:10.3772/j.issn.1002-0470.2013.01.009
原生GML数据库存储模型研究
Research on a storage model for native GML databases
摘要
Abstract
In view of the technical difficulties in geography markup language (GML) data management, the high storage redundancy and the low efficient spatial data querying of GML object-relational databases, the paper proposes a logical storage model for native GML databases on the basis of the analysis of the existing native GML databases management systems' storage characteristics and methods. It is called the NGDLST model. The model' s components of element name, attribute name, element value, attribute value, element node, element collection and document collection are defined based on a range encoding scheme and a tiny object storage mode which takes an element as the unit to store GML data, and on the basis of this, the model' s storing structure for data and indexes is given. The results of the experiment on comparing the performance of the model' s prototype system with that of three mainstream native XML database management systems show that the proposed model can perform better in GML storage and query.关键词
地理标记语言(GML)/XML/原生XML数据库/GML存储/原生GML数据库Key words
geography markup language (GML) / XML/ native XML database/ GML storage/ native GML database引用本文复制引用
张书亮,孙玉婷,闾国年..原生GML数据库存储模型研究[J].高技术通讯,2013,23(1):55-59,5.基金项目
国家自然科学基金(41171301)和863计划(2006AA12Z221)资助项目. （41171301）
