同步復(fù)制技術(shù)可以保證移動(dòng)數(shù)據(jù)庫(kù)的一致性，是移動(dòng)數(shù)據(jù)庫(kù)的關(guān)鍵技術(shù)之一。本文針
對(duì)移動(dòng)數(shù)據(jù)庫(kù)的斷接性、資源有限性等特點(diǎn)，分析同步復(fù)制技術(shù)現(xiàn)狀，將開(kāi)放的syncML 協(xié)議同步協(xié)議引入數(shù)據(jù)庫(kù)，在分析syncML 同步協(xié)議組成和特點(diǎn)基礎(chǔ)上，研究適用于移動(dòng)數(shù)據(jù)庫(kù)的雙向事務(wù)級(jí)同步過(guò)程，克服目前移動(dòng)數(shù)據(jù)系統(tǒng)同步處理算法中所存在的缺陷，有效保證移動(dòng)數(shù)據(jù)庫(kù)一致性，提高移動(dòng)數(shù)據(jù)庫(kù)的通用性和適應(yīng)性；同時(shí)實(shí)現(xiàn)不同結(jié)構(gòu)數(shù)據(jù)庫(kù)間的數(shù)據(jù)同步，增強(qiáng)系統(tǒng)可擴(kuò)充性。
關(guān)鍵字：syncML，同步過(guò)程，同步引擎，雙向同步
Abstract: Synchronal replicate technology can ensure the consistency of mobile database. This paper is to analyze the current situation of synchronal replicate technology, and study the two-way sync applying to the displacement mobile database, to maintain the consistency of mobile database and improve availability and adaptability of mobile database. At the same time, it will realize the data synchronism of different database structures, to strengthen system extensibility.
Key words：syncML, synchronization processing, Sync Engine, Two-way sync