摘要： 对移动数据库的关键技术之一事务处理进行了分析与探讨。在分析现有移动事务处理模型的基础上，结合研究开发的嵌入式移动数据库系统SwiftDB，提出增加接入代理层的事务处理系统结构，并根据移动计算环境的特点和具体应用需求，分析了移动节点上事务状态，改进两级复制模型的移动事务解决方案。

关键词: 移动数据库；移动事务；两级复制

Abstract: The paper places emphasis on the processing technology of mobile transactions, which is one of the key technologies to build up a mobile database system. On the basis of the analysis of current processing models for mobile transactions, the paper provides the system architecture for mobile transactions combined with the embedded database system SwiftDB, which has been developed successfully under lab environment. Then according to the characteristics of mobile computing environment and specific application requirements, the paper brings forwards the analysis of transaction status on mobile clients and the solution of mobile transactions based on two-tier replication model.

Key words: Mobile database; Mobile transaction; Two-tier replication