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A Relational Nested Interval Encoding Scheme for XML Data

机译:XML数据的关系嵌套间隔编码方案

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摘要

As XML is rapidly becoming the de-facto standard for data representation and exchange in the Internet age, there has been a lot of research on how to store and retrieve XML data in relational databases. However, even though the XML data is mostly tree-structured, the XML research community has shown little attention to the traditional RDBMS-based encoding scheme for tree data. In this paper, we investigate one of the encoding schemes, called Nested Interval, for the storage and retrieval of XML data. In particular, our approach is very robust in updating XML data, including insertion of new node. In fact, the existing RDBMS-based XML storage and indexing techniques work very poorly against XML data update because the XML data should be re-encoded from the scratch for virtually any update in XML data. In contract, Nested Interval scheme does not require re-encoding all nodes. In this respect, our approach is a viable option for storing and querying update-intensive XML application.
机译:随着XML迅速成为Internet时代数据表示和交换的事实上的标准,已经有很多关于如何在关系数据库中存储和检索XML数据的研究。但是,即使XML数据大部分是树结构的,XML研究社区也很少关注树数据的基于RDBMS的传统编码方案。在本文中,我们研究了一种称为Nested Interval的编码方案,用于存储和检索XML数据。特别是,我们的方法在更新XML数据(包括插入新节点)方面非常强大。实际上,现有的基于RDBMS的XML存储和索引技术在XML数据更新方面的效果非常差,因为应该对XML数据进行重新编码以进行几乎任何XML数据更新。按照合同,嵌套间隔方案不需要重新编码所有节点。在这方面,我们的方法是用于存储和查询更新密集型XML应用程序的可行选择。

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