| 基于事务垂直分片算法中节点估算代价的计算 |
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| 引用本文： | 张淑珍,王纪川.基于事务垂直分片算法中节点估算代价的计算[J].西安工程科技学院学报,2007,21(1):79-82. |
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| 作者姓名： | 张淑珍 王纪川 |
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| 作者单位： | 西安工程大学计算机学院,陕西西安710048 |
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| 摘 要： | 研究和扩充了事务的垂直分片算法，提出了在基于事务的垂直分片算法中如何计算节点的估算代价的方法．通过对事务中SQL语句的分析，得到事务查询所要求的属性，形成事务_属性矩阵．程序表明，本算法可以将分布式数据库系统中的关系合理地分片．
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| 关 键 词： | 分布式数据库系统 垂直分片 属性 事务 T_分片 |
| 文章编号： | 1671-850X(2007)01-0079-04 |
| 修稿时间： | 2006年7月4日 |
The computation of the node's estimate cost of transaction based on vertical partitioning |
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| ZHANG Shu-zhen,WANG Ji-chuan.The computation of the node''''s estimate cost of transaction based on vertical partitioning[J].Journal of Xi an University of Engineering Science and Technology,2007,21(1):79-82. |
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| Authors: | ZHANG Shu-zhen WANG Ji-chuan |
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| Abstract: | The vertical partitioning is a process of decomposing a relation into several fragments.The objective of vertical partitioning is to minimize the number disk accesses and execute transactions concurrently,to improve the performance of query execution and system throughput.The transaction based on vertical partitioning algorithm is studied and expanded in this paper.It has been proved that it can divide a relation into fragments relationally. |
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| Keywords: | distributed database system vertical partitioning attribute transaction T_fragment |
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