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DOI:
Journal of Software:1997.8(2):153-160

面向对象数据库的查询优化
吴胜利,王能斌
(东南大学计算机系,南京,210096)
QUERY OPTIMIZATION IN OBJECT ORIENTED DATABASE SYSTEMS
WU Shengli,WANG Nengbin
()
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    Revised:January 22, 1996
> 中文摘要: 查询优化一般分为逻辑和物理两层,但两者密切相关.在一个具体系统的实现中,若把它们截然分开会影响优化效果,而把它们有机结合起来则更佳.本文在联系代数的基础上探讨该问题,综合考虑了逻辑与物理2个方面,给出了面向对象数据库系统中的查询优化算法.
Abstract:Query optimization traditionally involves two deeply connected levels that are qualified as logical and physical. In the implementation of a concrete system, dividing it in two completely is not a good way. Considering the problem comprehensively is much better , the authors discuss this in the paper based on association algebra, and give query optimization algorithms in object oriented database system which taking into account both logical and physical aspects.
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吴胜利,王能斌.面向对象数据库的查询优化.软件学报,1997,8(2):153-160

WU Shengli,WANG Nengbin.QUERY OPTIMIZATION IN OBJECT ORIENTED DATABASE SYSTEMS.Journal of Software,1997,8(2):153-160