| 面向对象数据库的查询优化 |
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| 引用本文： | 吴胜利,王能斌.面向对象数据库的查询优化[J].软件学报,1997,8(2):153-160. |
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| 作者姓名： | 吴胜利 王能斌 |
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| 作者单位： | 东南大学计算机系,南京,210096;东南大学计算机系,南京,210096 |
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| 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.
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| 关 键 词： | 面向对象数据库 联系代数 查询优化 |
| 修稿时间： | 1996/1/22 0:00:00 |
QUERY OPTIMIZATION IN OBJECT ORIENTED DATABASE SYSTEMS |
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| WU Shengli and WANG Nengbin.QUERY OPTIMIZATION IN OBJECT ORIENTED DATABASE SYSTEMS[J].Journal of Software,1997,8(2):153-160. |
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| Authors: | WU Shengli and WANG Nengbin |
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| Affiliation: | Department of Computer Science\ Southeast University\ Nanjing\ 210096 |
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| 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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| Keywords: | Object oriented database association algebra query optimization |
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