SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
A Proposal for an XML Data Definition and Manipulation Language
Proceedings of the VLDB 2002 Workshop EEXTT and CAiSE 2002 Workshop DTWeb on Efficiency and Effectiveness of XML Tools and Techniques and Data Integration over the Web-Revised Papers
On the expressive power of XQuery fragments
DBPL'05 Proceedings of the 10th international conference on Database Programming Languages
XQuery!: an XML query language with side effects
EDBT'06 Proceedings of the 2006 international conference on Current Trends in Database Technology
XML query optimization in the presence of side effects
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Commutativity analysis for XML updates
ACM Transactions on Database Systems (TODS)
On the Termination Problem for Declarative XML Message Processing
DEXA '09 Proceedings of the 20th International Conference on Database and Expert Systems Applications
A better semantics for XQuery with side-effects
DBPL'07 Proceedings of the 11th international conference on Database programming languages
On the expressive power of update primitives
Proceedings of the 32nd symposium on Principles of database systems
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XQuery 1.0, the XML query language which is about to become a W3C Recommendation, lacks the ability to make persistent changes to instances of its data model. A number of proposals to extend XQuery with update facilities have been made lately, including a W3C Working Draft. In order to investigate some of the different constructs that are introduced in these proposals, we define an XQuery-based update language that combines them. By doing so, we show that it is possible to give a concise, complete and formal definition of such a language. We define subsets of this language to examine the relative expressive power of the different constructs, and we establish the relationships between these subsets in terms of queries and updates that can be expressed. Finally, we discuss the relationships between these subsets and existing XQuery-based update languages.