基于XML中间件的分布式数据库的数据分片策略

XML技术由于其鬼好的数据描述能力，在数据库系统的数据交换中得到广泛应用。为了降低并行查询的困难程度和提高并行查询的准确度，提出一种基于XML的分布式数据交换中间件模型，给出了该模型的体系结构和功能定义，并根据此中间件讨论了一种分布式数据库的数据分片技术。

XML-based data partitioning strategy of distributed database

As XML has become an emerging standard for information exchange and data expression on the World Wide Web,it has gained great attention among database communities.A XML-based middleware model and a semistructured data partitioning strategy was focused on.As one of XML characteristics,platform independence facilitated the connection between data sources and web applications as a form of database middleware.In this foundation,a data partitioning strategy for declustering XML documents named extensible hybrid-range partitioning strategy(EHRPS) could improve the performance of parallel query of this middleware and reduce the response time of the query.The performance tests,analyses and evaluations were given.