XML模式与关系模式间的映射冲突解决方法

Solution of mapping conflicts between XML and relational schema

为解决基于XML的异构数据库之间的数据交换问题,分析了XML模式和关系模式间存在的典型冲突,提出了一种基于XML格式的映射规则字典,该字典存储的转换信息可以解决两种模式转换过程中的典型冲突,最后给出了一组构造映射规则字典的算法。实验结果表明,在异构数据交换中引入映射规则字典能够有效降低数据转换时间,并获得较高的性能。

To deal with the data exchange between heterogeneous databases,typical conflicts between XML and relational schema are analyzed,and a mapping rule dictionary（MRD） is proposed based on XML format.The MRD can capture necessary information for resolving typical conflicts.Finally,a set algorithms for constructing MRD is designed.Experiments show that the MRD in the heterogeneous data exchange can decrease the exchange times effectively,and obtain better performance.