摘要
本文在了解分布式数据库概念及分布式查询优化方法的基础上，主要讨论了如何利用语义信息对分布查询进行优化，以期达到提高查询效率，缩短响应时间的目的。
On the basis of the concept of distributed query database and the method of distributed query optimization, this thesis is to discuss how to advance the distributed query through semantic information in order to promote efficiency and shortem the responding time.
