嵌入式实时数据库研究与实现  

Design and implementation of embedded database system

作　　者：金芳[1] 吴彦波[2] 

机构地区：[1]华中光电技术研究所,湖北武汉430074 [2]华北计算技术研究所,北京100083

出　　处：《计算机工程与设计》2008年第15期3909-3911,共3页Computer Engineering and Design

摘　　要：嵌入式实时数据库系统是指可在嵌入式设备中独立运行的一种数据库管理系统,以高可靠性、高实时性和高信息吞吐量为目标,其数据的正确性不仅依赖于逻辑结果,而且依赖于逻辑结果产生的时间。通过对嵌入式实时数据库关键技术研究,基于嵌入式Linux平台设计与实现了一个嵌入式实时数据库原型系统——ERDB,该系统实现结构化查询语言SQL-92子集,采用抢占式事务管理技术,当系统检测到实时事务时,优先调度执行实时事务,从而满足实时性能需求。The embedded real time database system means a system which can be run alone in the embedded device. The system can deal with various data with strict sequences promptly. It aims at the high stability and reality. The result of data rely not only on the logic but also on the time the result happening at. Its interface adopts the standard SQL92 collect. The paper makes a deep research into several key technology in theory, moreover, the implementation ofthe embedded database-ERDB is described, which takes advantage ofpreeruptive transaction management, based on the embedded Linux, and schedules the more preferential task, so as to meet the requirement of real-time transaction.

关 键 词：嵌入式 实时数据库 结构化查询语言 优先调度 抢占式事务 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]