摘要
Search operations in database require special support at physical level in conventional databse as well as in spatial database. However ,index mechnism in conventional databases cannot efficiently access spatial data because of their specialty. This apaer gives a survey and analysis of spatial access methods from various points of view. Finally, the spatial access method used in SADBS,a spatial anaysis DBMS developed by us ,is introduced.
Search operations in database require special support at physical level in conventional databse as well as in spatial database. However,index mechnism in conventional databases cannot efficiently access spatial data because of their specialty. This apaer gives a survey and analysis of spatial access methods from various points of view. Finally, the spatial access method used in SADBS,a spatial anaysis DBMS developed by us,is introduced.
出处
《计算机科学》
CSCD
北大核心
2001年第12期59-62,共4页
Computer Science
基金
国家自然科学基金(批准号49971063
69973022)
关键词
空间数据库
空间装引
地理信息系统
Spatial data ,Spatial access mechanism, Spatial Index,R-tree
