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2008

Towards a Unified Declarative and Imperative XQuery Processor

9 years 10 months ago
Towards a Unified Declarative and Imperative XQuery Processor
Since the birth of XML, the processing of XML query languages like XQuery/XQueryP has been widely researched in the academic and industrial communities. Most of the approaches consider XQuery as a declarative query language similar to SQL, for which the iterator-based (stream-based), lazy evaluation processing strategy can be applied. The processing is combined with XML indexing, materialized view, XML view query rewrite over source data. An alternative approach views XQuery as a procedural programming language associated with eager, step-based evaluation, where each expression is fully evaluated by the end of the corresponding expression execution step. Usually, this approach uses a virtual machine running byte-code for compiled programs. In this paper, we share our experience of building a unified XQuery engine for the Oracle XML DB integrating both approaches. The key contribution of our approach is that the unified XQuery processor integrates both declarative and imperati ve XQuer...
Zhen Hua Liu, Anguel Novoselsky, Vikas Arora
Added 10 Dec 2010
Updated 10 Dec 2010
Type Journal
Year 2008
Where DEBU
Authors Zhen Hua Liu, Anguel Novoselsky, Vikas Arora
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