摘要： 基于可伸缩矢量图形空间信息表达模型和合理的数据库结构，提出空间索引算法优化选择策略。结合设计模式思想，设计高内聚、低耦合的空间数据索引系统。该系统具有并行建立空间索引的能力，能实现异构XML-enabled空间数据库并行查询。实验结果证明，其检索效率比普通SQL查询高约66%。
关键词:
XML-enabled空间数据库,
空间索引系统,
设计模式
Abstract: Based on the Scalable Vector Graphics(SVG) spatial representation model and reasonable database structure, this paper presents an optimization selection strategy for spatial index algorithm. According to the design mode theory, it designs a spatial data index system with high cohesion and low coupling. The system provides the ability of creating spatial index in parallel, and can realize the capability of concurrently querying heterogeneous XML-enabled spatial database. Experimental results show that the system improves about 66 percents efficiency compared with SQL language.
Key words:
XML-enabled spatial database,
spatial index system,
design pattern
中图分类号:
马捷, 李岩, 董学敏. XML-enabled空间数据库的索引系统[J]. 计算机工程, 2010, 36(13): 48-50,53.
MA Cha, LI Yan, DONG Hua-Min. Index System for XML-enabled Spatial Database[J]. Computer Engineering, 2010, 36(13): 48-50,53.