基于功能替代的嵌入式实时事务提交策略  

The Strategy of Embedded Real-time Transaction Based on Function Alteration

作　　者：刘云生[1] 樊继方[1] 

机构地区：[1]华中科技大学计算机学院,武汉430074

出　　处：《计算机工程与应用》2004年第16期178-180,198,共4页Computer Engineering and Applications

基　　金：国家自然科学基金资助项目(编号:60073045);国家部委预研基金资助项目

摘　　要：在嵌入式实时数据库系统中,实时事务执行效率的高低直接影响着整个数据库系统性能的好坏。因此有必要对嵌入式实时事务进行有效预分析和预处理,以支持实时事务实现定时限制。文章给出了一种基于功能替代并且考虑实时事务定时性、功能替代性、多种相关性的实时事务提交策略,大大提高了实时事务执行的成功率。In the embed ded real-time database system,the execution efficiency of real-time transactions has a directed effect on the database system's performance.So it is necessary to make efficient preanalysis and preprocess on the em-bedded real-time transactions for supporting the implementation of real-time transaction's timing constraint.In this pa-per,one strategy based on function alteration which thinks over the real-time transactions timing,function alternative speciality,multi-correlation is presented,which increases the success ratio of real-time transactions.

关 键 词：嵌入式实时数据库 实时事务 事务预分析 事务预处理 事务功能替代集 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]