【作者】 廖国琼； 刘云生；

【机构】 江西财经大学； 华中科技大学软件学院；

【摘要】 <正>1前言嵌入式移动实时数据库并发控制机制除需防止数据库一致性被破坏、降低超截止期事务比率及避免"优先级颠倒"外,还须考虑嵌入式移动计算环境特点,如支持断接及节约系统资源等。更多还原

【Abstract】 In this paper,a check out/check in mechanism supporting transaction disconnection is suggested.Then,a concurrency control protocol for embedded mobile real-time transactions is discussed,which is based on a locking model integrating order shared and divergence control.Moreover,"image transactions"are designed to ensure database consistency in fixed hosts.It is shown from experiments that the suggested protocol can reduce transaction blocking time and decrease missing transactions ratio.更多还原