| 分布式工程数据库系统中事务管理机制相关技术的研究 |
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| 引用本文： | 李陶深,廖国琼,陈国宁.分布式工程数据库系统中事务管理机制相关技术的研究[J].广西科学,2001,8(3):172-176. |
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| 作者姓名： | 李陶深 廖国琼 陈国宁 |
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| 作者单位： | 广西大学计算机与信息工程学院, |
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| 基金项目： | 广西自然科学基金项目 (9712 0 0 8)，国家自然科学基金项目(5 98680 0 1)资助 |
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| 摘 要： | 从分布式工程设计事务环境和事务管理特点出发，给出一种分布式工程数据库系统（DEDBS）事务管理子系统的体系结构，提出一种适用于DEDBS中的事务两阶段提交协议，介绍两种支持工程设计事务的并发控制方法；基于20L的扩充分层封锁模型的并发控制方法和改进的乐观并行控制方法。
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| 关 键 词： | 分布式工程数据库系统 事务管理 并发控制 分层封锁 两阶段提交协议 |
| 收稿时间： | 2001/3/29 0:00:00 |
| 修稿时间： | 2001年3月29日 |
Research on Technology of Transaction Management Mechanism in Distributed Engineering Database System |
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| Li Taoshen,Liao Guoqiong and Chen Guoning.Research on Technology of Transaction Management Mechanism in Distributed Engineering Database System[J].Guangxi Sciences,2001,8(3):172-176. |
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| Authors: | Li Taoshen Liao Guoqiong and Chen Guoning |
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| Institution: | College of Comp. and Info. Engi., Guangxi Univ., 10 Xixiangtanglu, Nanning, Guangxi, 530004, China,College of Comp. and Info. Engi., Guangxi Univ., 10 Xixiangtanglu, Nanning, Guangxi, 530004, China and College of Comp. and Info. Engi., Guangxi Univ., 10 Xixiangtanglu, Nanning, Guangxi, 530004, China |
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| Abstract: | Considering the environment of distributed engineering design transaction and the properties of transaction management, an architecture of distributed engineering database system(DEDBS) is given.A transaction two phrase commit protocol which is suitable for DEDBS is proposed. Two concurrency control methods which can support engineering design transaction are also presented. They are the concurrency control method of extended declamination locking model based on 2PL and the improving optimistic concurrency control method. |
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| Keywords: | distributed engineering database system transaction management concurrency control delamination lock two phrase commit protocol |
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