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空间数据库中的三种查询优化方法

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摘要 查询优化是数据库系统设计和实现所采用的一项重要技术,也是影响数据库系统性能的一个重要因素。文章对最新的几种空间数据库的查询优化方法如基于线性四叉树的快速邻域查询算法,大规模高维向量空间的快速范围查询法和基于粒子群算法的数据库查询优化,进行了对比概述,总结了其优缺点。
出处 《国土资源导刊》 2009年第1期64-67,共4页 Land & Resources Herald
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