| 分布式战术数据库系统的查询处理 |
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| 引用本文： | 吴弘静.分布式战术数据库系统的查询处理[J].哈尔滨工程大学学报,1992(2). |
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| 作者姓名： | 吴弘静 |
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| 作者单位： | 哈尔滨船舶工程学院计算机信息科学系 |
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| 摘 要： | 全局查询的分解优化及综合是分布式数据查询处理中重要的技术问题。本文从系统实现的角度讨论这些问题,提出了全局查询条件与分片条件的相容性的处理算法,以及全局查询条件包含分片条件的概念和判断算法,描述了系统查询条件的分解及综合的算法框图。
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| 关 键 词： | 分布式数据库查询 分片技术 分布式系统全局查询的分解和优化 |
Query Processing Methods for Distributed Tactical Database System |
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| Wu Hongjing.Query Processing Methods for Distributed Tactical Database System[J].Journal of Harbin Engineering University,1992(2). |
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| Authors: | Wu Hongjing |
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| Affiliation: | Dept. of Computer and Information Science |
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| Abstract: | The problem that global guery is divided,optimized and combined is the main technical one about distributed database.This paper tells how to put it in practice,we propose two algorithms.one is that global gucry condition is interrelated with local condition,the other is that global condition contains the local one.We give the schemes for dividing global condition and combining of the local results. |
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| Keywords: | gucry for distributcd databasc allocation methods dividing and optimizing the global guery about distributed database |
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