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Querying XML documents by dynamic shredding

Hui Zhang, Frank Wm. Tompa
2004 Proceedings of the 2004 ACM symposium on Document engineering - DocEng '04  
This algorithm can be used as the basis of a sound translation from XQuery to SQL and the starting point for query optimization, which is required for XML to be supported by relational database technology  ...  With the wide adoption of XML as a standard data representation and exchange format, querying XML documents becomes increasingly important.  ...  The foundations for dynamic shredding arose from our previous work [8] .  ... 
doi:10.1145/1030397.1030401 dblp:conf/doceng/ZhangT04 fatcat:p7xobh64wbb4njfw66at6dg25y

Towards a Unified Declarative and Imperative XQuery Processor

Zhen Hua Liu, Anguel Novoselsky, Vikas Arora
2008 IEEE Data Engineering Bulletin  
The processing is combined with XML indexing, materialized view, XML view query rewrite over source data.  ...  Furthermore, the processor is designed with a clean separation between the logical XML data model and the physical representation so that it can be optimized with various physical XML storages and data  ...  That duality allows using XQuery to query relational data and using SQL to query XML by leveraging XMLTable construct in SQL/XML.  ... 
dblp:journals/debu/LiuNA08 fatcat:iffxsd4ft5b5nkf2cgocnsrkey

Towards a physical XML independent XQuery/SQL/XML engine

Zhen Hua Liu, Sivasankaran Chandrasekar, Thomas Baby, Hui J. Chang
2008 Proceedings of the VLDB Endowment  
to provide optimization for different physical XML formulations.  ...  We need an underlying framework to build an XQuery engine that can work with and provide optimization for different XML storage, index and view models.  ...  ACKNOWLEDGEMENTS We gratefully acknowledge the contributions of all the members of the Oracle XML DB development and product management teams.  ... 
doi:10.14778/1454159.1454177 fatcat:jdlyx66mcvhovhj67z7fy56q2a

Efficient XSLT Processing in Relational Database System

Zhen Hua Liu, Anguel Novoselsky
2006 Very Large Data Bases Conference  
However, much less of such type of work has been done for efficient XSLT processing of XML documents stored and managed by the database.  ...  This effectively makes XSLT processing scale to large size XML documents using classical declarative query processing techniques in DBMS.  ...  In particular, we thank Muralidhar Krishnaprasad who have provided ideas and insights for this project. References  ... 
dblp:conf/vldb/LiuN06 fatcat:3naxlq2nevabna3gvz3chcilam

Translating XSLT programs to Efficient SQL queries

Sushant Jain, Ratul Mahajan, Dan Suciu
2002 Proceedings of the eleventh international conference on World Wide Web - WWW '02  
Our context is that of virtual XML publishing, in which a single XML view is defined from a relational database, and subsequently queried with XSLT programs.  ...  Our translation works for a large fragment of XSLT, which we define, that includes descendant/ancestor axis, recursive templates, modes, parameters, and aggregates.  ...  Dan Suciu was partially supported by the NSF CAREER Grant 0092955, a gift from Microsoft, and an Alfred P. Sloan Research Fellowship.  ... 
doi:10.1145/511523.511526 fatcat:zr7kekmfgjd5feknhyyktswt2i

Translating XSLT programs to Efficient SQL queries

Sushant Jain, Ratul Mahajan, Dan Suciu
2002 Proceedings of the eleventh international conference on World Wide Web - WWW '02  
Our context is that of virtual XML publishing, in which a single XML view is defined from a relational database, and subsequently queried with XSLT programs.  ...  Our translation works for a large fragment of XSLT, which we define, that includes descendant/ancestor axis, recursive templates, modes, parameters, and aggregates.  ...  Dan Suciu was partially supported by the NSF CAREER Grant 0092955, a gift from Microsoft, and an Alfred P. Sloan Research Fellowship.  ... 
doi:10.1145/511446.511526 dblp:conf/www/JainMS02 fatcat:3hndooowtzhu5gbblmbkrpqvx4

Materialized View Selection in XML Databases [chapter]

Nan Tang, Jeffrey Xu Yu, Hao Tang, M. Tamer Özsu, Peter Boncz
2009 Lecture Notes in Computer Science  
We start our discussion on producing minimal xml views (in terms of size) as candidates for a given workload (a query set).  ...  By basing our selection on vcube for materialization, we propose two view selection strategies, targeting at space-optimized and space-time tradeoff, respectively.  ...  Conversely, for a subset of queries Q , we denote by genv(Q ) the views generated by aggregating each query in Q e.g. genv(Q 1 , Q 2 ) = Q 1 • Q 2 .  ... 
doi:10.1007/978-3-642-00887-0_55 fatcat:sdhcvfnppjezjloowoiikg5sza

A query language for XML

Alin Deutsch, Mary Fernandez, Daniela Florescu, Alon Levy, Dan Suciu
1999 Computer Networks  
XML-QL is a declarative, "relational complete" query language and is simple enough that it can be optimized. XML-QL can extract data from existing XML documents and construct new XML documents.  ...  We present a query language for XML, called XML-QL, which we argue is suitable for performing the above tasks.  ...  Specifically, we take a database view, as opposed to document view, of XML. We consider an XML document to be a database and a DTD to be a database schema.  ... 
doi:10.1016/s1389-1286(99)00020-1 fatcat:atj32xdsrvecfnnucfzatc6g4m

The OLAP-XML Federation System

Xuepeng Yin, Torben Bach Pedersen
2006 International Conference on Management of Data  
This demo shows the uses of XML data for selection and grouping and explains the query optimization and evaluation processes with a concrete example.  ...  We present the logical "OLAP-XML Federation System" that enables the external data available in XML format to be used as virtual dimensions.  ...  Acknowledgements This work was supported by the Danish Research Council for Technology and Production Sciences under grant no. 26-02-0277.  ... 
dblp:conf/comad/YinP06a fatcat:a5sp3ggzzbhc5fizdczdva7umi

Publishing Relational Data in XML: the SilkRoute Approach

Mary F. Fernandez, Atsuyuki Morishima, Dan Suciu, Wang Chiew Tan
2001 IEEE Data Engineering Bulletin  
Papers for each issue are solicited by and should be sent to the Associate Editor responsible for the issue.  ...  Acknowledgements Funding for this work was provided by DARPA through NAVY/SPAWAR Contract No. N66001-99-1-8908 and by NSF Awards CDA-9623632 and ITR 0086002.  ...  Aggregate queries, for example, are rarely offered by form interfaces.  ... 
dblp:journals/debu/FernandezMST01 fatcat:zvdgpmia2zen7lhy2pkhnfg6da

Native Xquery processing in oracle XMLDB

Zhen Hua Liu, Muralidhar Krishnaprasad, Vikas Arora
2005 Proceedings of the 2005 ACM SIGMOD international conference on Management of data - SIGMOD '05  
query capability into the SQL system by introducing new SQL functions and constructs such as XMLQuery() and XMLTable.  ...  With XQuery becoming the standard language for querying XML, and the relational SQL platform being recognized as an important platform to store and process XML, the SQL/XML standard is integrating XML  ...  The equivalent query can then be optimized by a classical relational optimizer and executed natively by tuple oriented relational execution engine.  ... 
doi:10.1145/1066157.1066259 dblp:conf/sigmod/LiuKA05 fatcat:qyqpfi7dwvblznqltq6sjmyvmu

Warehousing complex data from the Web [article]

Omar Boussaid , Sabine Loudcher
2017 arXiv   pre-print
However, intagrating such data into a decision-support process requires their representation under a form processable by OLAP and/or data mining techniques.  ...  We present in this paper a complex data warehousing methodology that exploits XML as a pivot language.  ...  Jaroslav Pokorný, the editors, for inviting them to publish an article in this special issue.  ... 
arXiv:1701.00398v1 fatcat:64yhgypd4fdlrhy7gwobtljs7y

A Decade of XML Data Management: An Industrial Experience Report from Oracle

Zhen Hua Liu, Ravi Murthy
2009 Proceedings / International Conference on Data Engineering  
and query optimisation techniques for different XML use cases.  ...  XML and its related technologies have now been in use for almost a decade.  ...  As shown, the SQL/XML query with XMLQuery() and XMLExists() operators and embedded XQuery/XPath is rewritten by XML query optimizer into an equivalent query without XQuery/XPath.  ... 
doi:10.1109/icde.2009.18 dblp:conf/icde/LiuM09 fatcat:oecsthn7q5g5bp2y3x7vbnoq5i

XQuery Implementation in a Relational Database System

Shankar Pal, Istvan Cseri, Oliver Seeliger, Michael Rys, Gideon Schaller, Wei Yu, Dragan Tomic, Adrian Baras, Brandon Berg, Denis Churin, Eugene Kogan
2005 Very Large Data Bases Conference  
Novel techniques are used for efficiently managing document order and XML hierarchy.  ...  XQuery is an emerging W3C recommendation for querying XML data.  ...  on XQuery implementation; and specially thank their former colleagues Peter Kukol and Chris Kowalczyk for their invaluable contributions to the project.  ... 
dblp:conf/vldb/PalCSRSYTBBCK05 fatcat:4ez4omczcffdxlbgd6xq5oywk4

Query Rewrite for XML in Oracle XML DB [chapter]

Muralidhar Krishnaprasad, Zhen Hua Liu, Anand Manikutty, James W. Warner, Vikas Arora, Susan Kotsovolos
2004 Proceedings 2004 VLDB Conference  
It has the capability to physically store XML documents by shredding them as relational or object relational data, and creating logical XML documents using SQL/XML publishing functions.  ...  This enables a large class of XML queries over XML type tables and views to be transformed into their semantically equivalent relational or object relational queries.  ...  We would especially like to thank Ravi Murthy and Muralidhar Subramanian, who have given us valuable and insightful ideas for query rewrite.  ... 
doi:10.1016/b978-012088469-8.50098-x dblp:conf/vldb/KrishnaprasadLMWAK04 fatcat:icxkgdbd35fcfglxrddah4f6ii
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