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XQuery reloaded

Roger Bamford, Sorin Nasoi, Markos Zacharioudakis, Vinayak Borkar, Matthias Brantner, Peter M. Fischer, Daniela Florescu, David Graf, Donald Kossmann, Tim Kraska, Dan Muresan
2009 Proceedings of the VLDB Endowment  
This paper describes a number of XQuery-related projects. Its goal is to show that XQuery is a useful tool for many different application scenarios.  ...  This paper gives an overview of the state-of-the-art in XQuery implementation and optimization techniques and discusses one particular open-source XQuery processor, Zorba, in more detail.  ...  We would like to thank the following contributors to the projects listed in this paper: Cezar Andrei, Nicolae Brinza, William Candillion, Ghislain Fourny, Martin Hentschel, Dennis Knochenwefel, Alexander  ... 
doi:10.14778/1687553.1687560 fatcat:rqw4yu3gjjagtdcdsfhrn7n2pm

Implementing filesystems by tree-aware DBMSs

Alexander Holupirek, Marc H. Scholl
2008 Proceedings of the VLDB Endowment  
We implement a filesystem in userspace backed by the MonetDB/XQuery system, a well-known relational database system, which integrates the Pathfinder XQuery compiler [5] and the Mon-etDB kernel [4] .  ...  This paper introduces a Ph.D. project focused on the question in how far the tree-awareness of recent RDBMSs can be used to, once again, try to implement filesystems using database technology.  ...  The MonetDB/XQuery System Pathfinder is an XQuery compiler implementation backed by relational database kernels.  ... 
doi:10.14778/1454159.1454237 fatcat:gf5fljjmuzfyrkzo64w3yoefqe

AN EFFECTIVE APPROACH FOR MODIFYING XML DOCUMENTS IN THE CONTEXT OF MESSAGE BROKERING

2006 Issues in Information Systems  
In our approach we propose to store XML data in its native form in a BDB XML database and perform updates specified in XQuery language.  ...  We compare our approach with another technique that stores XML data in relational tables.  ...  Storing XML in relational database systems: The hierarchical data represented in XML format is shredded into multiple relational tables.  ... 
doi:10.48009/2_iis_2006_134-139 fatcat:toh5nwnavne2pg7x672236u72a

XML and relational database management systems

Michael Rys, Don Chamberlin, Daniela Florescu
2005 Proceedings of the 2005 ACM SIGMOD international conference on Management of data - SIGMOD '05  
A number of companies, including both established database vendors and startups, have recently announced new XML database systems or new XML functionality integrated into existing database systems.  ...  This tutorial will provide an insight into how XML functionality fits into relational database management systems as seen by three major relational vendors: IBM, Microsoft and Oracle.  ...  STORING XML IN RELATIONAL DATABASE SYSTEMS The simplest approach to storing XML data in a relational database system is to use a long-character-string datatype, such as CLOB in SQL, to store XML documents  ... 
doi:10.1145/1066157.1066298 dblp:conf/sigmod/RysCF05 fatcat:ji6tfnwr4rb2lnszwrmcefpyza

A comparison of two approaches to utilizing XML in parametric databases for temporal data

Seo-Young Noh, Shashi K. Gadia
2006 Information and Software Technology  
There are two approaches to implementing parametric databases using XML: 1) a native XML database with XQuery engine, and 2) an XML storage with a temporal query language.  ...  The parametric data model captures an object in terms of a single tuple. This feature eliminates unnecessary self-join operations to combine tuples scattered in a temporal relation.  ...  Implemented temporal database systems are broadly categorized into two groups: temporal database systems over relational database systems and temporal database systems over object-oriented database systems  ... 
doi:10.1016/j.infsof.2005.10.002 fatcat:eghkznvv2fbb3j3yoeubhwouia

Developing an Enterprise Web Application in XQuery [chapter]

Martin Kaufmann, Donald Kossmann
2009 Lecture Notes in Computer Science  
It is shown that it is actually possible and quite effective to implement a web application entirely in XQuery and that there are several advantages in doing so.  ...  To this end, this paper describes how to build an entire enterprise web application in XQuery.  ...  Related Work There has been a great deal of work on XQuery already. XQuery has been implemented by all major database vendors.  ... 
doi:10.1007/978-3-642-02818-2_39 fatcat:izzifp7lo5fkzbfcpkqhvoltb4

The relational XQuery puzzle: a look-back on the pieces found so far

Jens Teubner
2009 Computer Science - Research and Development  
Our main focus is on the Pathfinder XQuery compiler, a full reference implementation of a purely relational XQuery processor.  ...  Given the tremendous versatility of relational database implementations toward a wide range of database problems, it seems only natural to consider them as backends for XML data processing.  ...  Since relational database systems are, by far, the most scalable and efficient data processors currently available, we want to implement XQuery functionality on relational foundations wherever possible  ... 
doi:10.1007/s00450-009-0058-8 fatcat:6gjgydq5pbhwppjzhfykj5vgma

Share Market Management System Based Keyword Query Processing on XML Data

Darsana C.S, Roshni P, Chandini K, Surekha Mariam Varghese
2016 International Journal on Cybernetics & Informatics  
In this paper we implement a Share Market Management System using an XML database.  ...  Nowadays, many research has been focused on XML database systems. In share market, the value of a share changes over time.  ...  In a relational database store, values are also stored redundantly. This can cause null values in database and a lot of space wastage.  ... 
doi:10.5121/ijci.2016.5227 fatcat:xe7okyqisfchtanhmt27mresbu

A SQL

Torsten Grust, Manuel Mayr, Jan Rittinger, Sherif Sakr, Jens Teubner
2007 Proceedings of the 2007 ACM SIGMOD international conference on Management of data - SIGMOD '07  
The Pathfinder XQuery compiler has been enhanced by a new code generator that can target any SQL:1999-compliant relational database system (RDBMS).  ...  In a sense, this demonstration thus lets relational algebra and SQL swap their traditional roles in database query processing.  ...  To benefit from these indexes even in the presence of nodes that a query may construct at runtime-such transient nodes do not appear in persistent indexes-the system maintains the relational encodings  ... 
doi:10.1145/1247480.1247642 dblp:conf/sigmod/GrustMRST07 fatcat:fffwngyowjheth46lg4vowt65a

Scalable XQuery type matching

Jens Teubner
2008 Proceedings of the 11th international conference on Extending database technology Advances in database technology - EDBT '08  
We propose type ranks as a novel and uniform way to implement all facets of type matching in the W3C XQuery Recommendation.  ...  In addition, we improve the complexity bounds incurring with typeswitch expressions over existing approaches. Experiments on an off-the-shelf database system demonstrate the potential of our approach.  ...  Acknowledgements Parts of this work have been done while the author was a member of the database group at the Technische Universität München.  ... 
doi:10.1145/1352431.1352441 fatcat:63kspwg6src5pjqoahydhso74u

Scalable XQuery type matching

Jens Teubner
2008 Proceedings of the 11th international conference on Extending database technology Advances in database technology - EDBT '08  
We propose type ranks as a novel and uniform way to implement all facets of type matching in the W3C XQuery Recommendation.  ...  In addition, we improve the complexity bounds incurring with typeswitch expressions over existing approaches. Experiments on an off-the-shelf database system demonstrate the potential of our approach.  ...  Acknowledgements Parts of this work have been done while the author was a member of the database group at the Technische Universität München.  ... 
doi:10.1145/1353343.1353353 dblp:conf/edbt/Teubner08 fatcat:vs7hl3rtdnca5mzmypqxrbei6q

Updating XQuery Views Published over Relational Data: A Round-Trip Case Study [chapter]

Ling Wang, Mukesh Mulchandani, Elke A. Rundensteiner
2003 Lecture Notes in Computer Science  
Managing XML data using relational database systems, including query processing over virtual XML views that wrap relational sources, has been heavily studied in the last few years.  ...  We also present a decompositionbased update translation strategy for solving this problem. As evidence of feasibility, we have implemented the proposed strategies within the Rainbow XQuery system.  ...  in [14] , assume we built a relational database.  ... 
doi:10.1007/978-3-540-39429-7_15 fatcat:wts7oskrx5hjbkypkzyuoztrui

ROX [chapter]

Alan Halverson, Vanja Josifovski, Guy Lohman, Hamid Pirahesh, Mathias Mörschel
2004 Proceedings 2004 VLDB Conference  
to XQuery.  ...  Storing the XML in its native format will facilitate new applications that exchange business objects in XML format and query portions of XML documents using XQuery.  ...  Acknowledgement: In order to assemble the prototype, we relied on components built by many contributors, including Bert van der Linden, Brian Vickery, Tuong Truong, Bob Lyle, George Lapis, Bobbie Cochrane  ... 
doi:10.1016/b978-012088469-8.50026-7 dblp:conf/vldb/HalversonJLPM04 fatcat:gn6lrkd6bnh3vlci6cb6ineqme

XML programming with SQL/XML and XQuery

J. E. Funderburk, S. Malaika, B. Reinwald
2002 IBM Systems Journal  
Most business data are stored in relational database systems, and SQL (Structured Query Language) is used for data retrieval and manipulation.  ...  New XML data will be stored, searched, and manipulated in the database as a "first class" citizen along with existing relational data.  ...  The XTABLES stored procedure implements the XQuery parser and query rewriting system. Many simple XQueries against relational data can be fully composed into SQL-compatible queries.  ... 
doi:10.1147/sj.414.0642 fatcat:s3cv5p3yy5dbtcvrftawnxbiyy

MonetDB/XQuery

Peter Boncz, Torsten Grust, Maurice van Keulen, Stefan Manegold, Jan Rittinger, Jens Teubner
2006 Proceedings of the 2006 ACM SIGMOD international conference on Management of data - SIGMOD '06  
Relational XQuery systems try to re-use mature relational data management infrastructures to create fast and scalable XML database technology.  ...  The main contribution of our system is to show that the relational XQuery paradigm can indeed leverage the power of mature relational database technology to deliver speed and scalability in the XML domain  ...  CONCLUSIONS In this work, we have described a new XML database system built purely on relational database technology.  ... 
doi:10.1145/1142473.1142527 dblp:conf/sigmod/BonczGKMRT06 fatcat:ebu7v3o5m5f3jkynowhlsh6sf4
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