改进单链接法——空间数据管理方法

Modified Single-Link Method-The Mehtod of Spatial DBMS

根据空间数据的特性 ,提出了考虑空间数据大小的改进单链接法 (Modified Single- L ink Method) ,并结合大二进制 (BL OB)来管理空间数据和属性数据 ,试验证明该方法可以提高查询效率和数据存储利用率 ,同时提供更大的查询灵活性 ,而且在其研究开发的空间数据库管理系统中得到实现。通过对改进的单链接法的操作和分析 ,说明该管理方法是可行的 。

In this paper, the authors, according to the property of spatial data, propose a new management method-modified single-link method, by using this method with BLOB the spatial data and non-spatial data can be controlled and managed. This method is implemented in spatial DBMS. The experiments show that the new method can improve the query efficiency and can make full use of data storage, at the same time provide more flexibility in query. The operation and analysis of this method prove that the method is feasible and the operators can use it to form their own operation models.