基于Shrex的XQuery-SQL查询转换模型的设计与实现  

DESIGN AND IMPLEMENTATION OF A SHREX-BASED XQUERY-SQL TRANSLATION MODEL

作　　者：龙冠卿[1] 潘荫荣[1] 胡幼华[1] 

机构地区：[1]华东师范大学计算机科学技术系,上海200062

出　　处：《计算机应用与软件》2008年第6期120-122,125,共4页Computer Applications and Software

摘　　要：目前还没有一个不依赖于模式映射、且支持复杂嵌套XQuery到SQL的查询转换解决方案。针对现状,设计并实现了一个将XQuery转换为等价SQL的查询转换模型(EXSM)。该模型基于Shrex框架,以简洁的方式解决了模式依赖问题,并采用树形中间结构,使之支持复杂的嵌套XQuery。因此,该模型有效地涵盖解决了目前存在的两个问题。There is no existing solution for query transfer between XQurey and SQL which does not depend on schema mapping strategy and supports the complex nested queries. According to this a translation model （EXSM） transferring XQuery to equivalent SQL was designed and implemented. The model was based on Shrex framework which covered the schema mapping dependence problem concisely and used tree-type middle structure so that the complex nested XQuery is supported. The model effectively solved two problems listed above.

关 键 词：XQUERY 查询转换 SQL 模式映射策略 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论] P228.4[自动化与计算机技术—计算机科学与技术]