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嵌入式实时数据库系统并发控制协议A-Based OCC-WAIT50
引用本文:林东升.嵌入式实时数据库系统并发控制协议A-Based OCC-WAIT50[J].科技广场,2006(7):43-45.
作者姓名:林东升
作者单位:江西财经大学信息管理学院,南昌,330013
摘    要:本文主要是把替代引入到乐观并发控制协议OCC-WAIT50中来,提出了一种实时并发控制协议A-BasedOCC-WAIT50。由于各替代的资源需求不同,所以,参与资源竞争受阻的机会也不同。对于处于接纳队列中的事务,选择一个最优替代参与并发控制,可以避免或减少冲突的发生。而当冲突不可避免时,再采用乐观并发控制协议OCC-WAIT50进行冲突消解。

关 键 词:嵌入式实时数据库系统  乐观并发控制  替代
文章编号:1671-4792-(2006)7-0077-03

A-Based OCC-WAIT50: The Concurrency Control Protocol For Embedded Real-time Database System
Lin Dongsheng.A-Based OCC-WAIT50: The Concurrency Control Protocol For Embedded Real-time Database System[J].Science Mosaic,2006(7):43-45.
Authors:Lin Dongsheng
Abstract:A real-time concurrency control protocol A-Based OCC-WAIT50 is proposed in this paper, which associate alternative with optimistic concurrency control protocol OCC-WAIT50. Because resources which each alternative needs is different, when participating resources competition, the opportunity to be blocked is also different. For each transaction in accepted queue, the conflict can be avoided or reduced by choosing the best alternative to join the concurrency control, when conflict can not be avoided, then the optimistic concurrency control OCC-WAIT50 is adopted to resolving the conflict.
Keywords:Embedded Real-Time Database System  Optimistic Concurrency Control  Alternative
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