基于影子机制的XQuery转换实现方法

17th International Workshop on Database and Expert Systems Applications (DEXA'06) Pub Date : 2006-09-04 DOI:10.1109/DEXA.2006.11

Maria Rekouts, Maxim N. Grinev, A. Boldakov

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引用次数: 1

摘要

XQuery更新工具已经由万维网联盟作为工作草案发布。其中，工作草案提出了一种新颖的、功能强大的变换表达式。转换表达式创建XML子树的新修改副本，其中的修改被指定为更新操作。在本文中，我们研究了转换表达式的使用，并提供了一种有效地支持转换表达式的方法:该方法避免了复制整个修改后的XML子树。我们的方法是基于早期恢复工作中提出的影子机制的思想

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A Method for XQuery Transform Implementation Based on Shadow Mechanism

The XQuery Update Facility has been published by the World Wide Web Consortium as a working draft. Among other features, the working draft presents a novel powerful transform expression. A transform expression creates a new modified copy of an XML subtree, where the modifications are specified as update operations. In this paper we investigate the use of transform expressions and provide a method to support transform expressions efficiently: the method avoids copying of the whole modified XML subtree. Our method is based on the idea of shadow mechanism proposed in early work on recovery

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17th International Workshop on Database and Expert Systems Applications (DEXA'06)

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