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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  
translate each XML query (e.g., expressed in W3C's XQuery) to SQL queries expressed against the shredded documents.  ...  In this paper, we propose an alternative approach that builds on relational database technology, but shreds XML documents dynamically.  ...  The foundations for dynamic shredding arose from our previous work [8] .  ... 
doi:10.1145/1030397.1030401 dblp:conf/doceng/ZhangT04 fatcat:p7xobh64wbb4njfw66at6dg25y

ShreXManaging XML Documents in Relational Databases [chapter]

F DU, S AMERYAHIA, J FREIRE
2004 Proceedings 2004 VLDB Conference  
We describe ShreX, a freely-available system for shredding, loading and querying XML documents in relational databases.  ...  It provides generic (mapping-independent) functions for loading shredded documents into relations and for translating XML queries into SQL.  ...  , to SQL. 3 Similar to the document shredder, the query translator does not hard-code mapping choices, instead it uses the information provided by the mapping API to dynamically decide how to perform  ... 
doi:10.1016/b978-012088469-8/50131-5 fatcat:femib42z2re3ndibqlz7jsh3vm

A comprehensive solution to the XML-to-relational mapping problem

Sihem Amer-Yahia, Fang Du, Juliana Freire
2004 Proceedings of the 6th annual ACM international workshop on Web information and data management - WIDM '04  
ShreX provides generic (and automatic) document shredding and query translation capabilities, and it is also portable -its mapping specifications are independent of the database backend.  ...  XML-storage solutions provided by RDBMS also have limitations.  ...  Similar to the document shredder, the query translator does not hard-code mapping choices, instead it uses the information provided by the mapping API to dynamically decide how to perform the translation  ... 
doi:10.1145/1031453.1031461 dblp:conf/widm/Amer-YahiaDF04 fatcat:ys27ke4amrgtpb5k4ogxnnrl3m

Schema-Independent and Schema-Friendly Scientific Metadata Management

Scott Jensen, Beth Plale
2008 2008 IEEE Fourth International Conference on eScience  
With the inlining approach, XML documents are shredded and leaf elements are stored in relational tables.  ...  The CLOB approach works well for applications where whole documents are returned in response to queries, queries are not based on the contents of the XML documents, and documents are only archived and  ... 
doi:10.1109/escience.2008.114 dblp:conf/eScience/JensenP08 fatcat:zsaa6776ijhy3k5g5tyezc7kry

Using Characteristics of Computational Science Schemas for Workflow Metadata Management

Scott Jensen, Beth Plale
2008 2008 IEEE Congress on Services - Part I  
In contrast to general XML data, the unique uses for scientific metadata allow further optimization.  ...  In this paper we show that our hybrid approach outperforms the well-known inlining approach to storing XML when applied to scientific metadata.  ...  of the document using a process commonly known to as "shredding".  ... 
doi:10.1109/services-1.2008.42 dblp:conf/services/JensenP08 fatcat:re5m3uwnlnd7bedz2rpwp6g7fe

JSON data management

Zhen Hua Liu, Beda Hammerschmidt, Doug McMahon
2014 Proceedings of the 2014 ACM SIGMOD international conference on Management of data - SIGMOD '14  
We present three architectural principles that facilitate a schemaless development style within an RDBMS so that RDBMS users can store, query, and index JSON data without requiring schemas.  ...  Consequently, an RDBMS can unify the management of both relational data and JSON data in one platform and use SQL with an embedded JSON path language as a single declarative language to query both relational  ...  in XML documents.  ... 
doi:10.1145/2588555.2595628 dblp:conf/sigmod/LiuHM14 fatcat:rrf7sofrfvcdplcbrapk5rb4ji

Semantics in XML Data Processing
XML 데이터 처리에서 시맨틱

Min Jin
2011 Journal of the Korea Academia-Industrial cooperation Society  
We propose an extended relational semantics in order to exploit it in managing XML documents such as query processing.  ...  Relational database is still a good alternative for storing and managing large volume of XML documents.  ...  Unfortunately we have the same problem as query ① with traditional shredding method. It goes the same way for query ③ and ④.  ... 
doi:10.5762/kais.2011.12.3.1327 fatcat:dvdswhbywrd5dc6xfz5um52umi

Database Theory 2004

Michael Benedikt
2007 Journal of computer and system sciences (Print)  
However, this kind of optimization is particularly useful in conjunction with XML queries (which often are guaranteed to have low tree width) and with relational queries generated from shredded XML documents  ...  The paper by Davidson, Fan, and Hara and that by Martens and Neven deal with mappings acting on XML documents. Davidson, Fan, and Hara are concerned with storage of XML in relations.  ... 
doi:10.1016/j.jcss.2006.10.023 fatcat:rxp7mnojznchbmrxirq7cmildq

XML and relational database management systems

Michael Rys
2005 Proceedings of the 2005 ACM SIGMOD international conference on Management of data - SIGMOD '05  
While first concentrating on enabling the transport of relational data via XML with the SQL Server 2000 release, SQL Server 2005 now additionally provides native XML storage and query support.  ...  Microsoft® SQL Server™ has a long history of XML support dating back to 1999.  ...  system without having to "shred" them into a relational structure or lose the ability to query into the structure of the XML.  ... 
doi:10.1145/1066157.1066301 dblp:conf/sigmod/Rys05 fatcat:yuewb5jqrfav3fjudmidbzk2ji

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.  ...  We discuss the lessons learnt in supporting both data-centric and document-centric XMLDB applications within a single database system and the need for the implementation of different XML storage, index  ...  Instead it is calculated dynamically from the query results.  ... 
doi:10.1109/icde.2009.18 dblp:conf/icde/LiuM09 fatcat:oecsthn7q5g5bp2y3x7vbnoq5i

XTABLES: Bridging relational technology and XML

J. E. Funderburk, G. Kiernan, J. Shanmugasundaram, E. Shekita, C. Wei
2002 IBM Systems Journal  
by pushing most computation down to the relational database engine, (3) allows users to query seamlessly over relational data and meta-data, and (4) allows users to write queries that span XML documents  ...  In particular, XTABLES provides a general framework to create XML views of relational data, query XML views, and store and query XML documents using a relational database system.  ...  XTABLES stores XML documents by automatically "shredding" them into rows in tables.  ... 
doi:10.1147/sj.414.0616 fatcat:yeafcyv6u5futeoecgbkae7ysm

System RX

Kevin Beyer, Normen Seemann, Tuong Truong, Bert Van der Linden, Brian Vickery, Chun Zhang, Roberta J. Cochrane, Vanja Josifovski, Jim Kleewein, George Lapis, Guy Lohman, Bob Lyle (+2 others)
2005 Proceedings of the 2005 ACM SIGMOD international conference on Management of data - SIGMOD '05  
The new support for XML includes native support for storage and indexing as well as query compilation and evaluation support for the latest industry-standard query languages, SQL/XML and XQuery.  ...  By building a hybrid system, we leverage more than 20 years of data management research to advance XML technology to the same standards expected from mature relational systems.  ...  Another important aspect of shredding is whether or not a DTD or an XML schema is required for storage of XML documents.  ... 
doi:10.1145/1066157.1066197 dblp:conf/sigmod/OzcanCPKBJZ05 fatcat:zdaqtbw4dbaxpifxh36weluawa

Trading Consistency for Scalability in Scientific Metadata

Scott Jensen, Beth Plale
2010 2010 IEEE Sixth International Conference on e-Science  
In XMC Cat metadata catalog, an XML catalog that uses a novel hybrid model to store XML to a relational database, we exploit differences in the temporal utility between browse and search metadata to selectively  ...  By ensuring only eventual consistency on parts of the solution, we determine through experimental analysis that the performance and scalability of the catalog can be substantially improved.  ...  For experiments, operations that manipulate larger XML documents start to become more expensive -such as extracting the root metadata element from the shredded metadata.  ... 
doi:10.1109/escience.2010.28 dblp:conf/eScience/JensenP10 fatcat:uvlfgzlwm5g7ndmlhu3jitypqi

XML programming with SQL/XML and XQuery

J. E. Funderburk, S. Malaika, B. Reinwald
2002 IBM Systems Journal  
Furthermore, new applications will emerge that solely operate in terms of XML. These new XML applications operate on the same database using an XML query language, XQuery.  ...  Most business data are stored in relational database systems, and SQL (Structured Query Language) is used for data retrieval and manipulation.  ...  It is likely that XML queries will be treated as dynamic queries (in contrast to traditional static SQL queries), so compiling and optimization time is a part of the total cost of each invocation unless  ... 
doi:10.1147/sj.414.0642 fatcat:s3cv5p3yy5dbtcvrftawnxbiyy

Beyond regional health information exchange in China: a practical and industrial-strength approach

Shengping Liu, Baoyao Zhou, Guotong Xie, Jing Mei, Haifeng Liu, Changsheng Liu, Liang Qi
2011 AMIA Annual Symposium Proceedings  
We also propose to use a hybrid relational-XML database for the storage of CDA documents that leverages both relational and XML optimization techniques to improve the performance of flexible clinical queries  ...  We propose to design a simple XML format for the representation of clinical documents and a messaging-based protocol for exchanging of clinical documents to facilitate the adoption of international standards  ...  It displays the EHR document view by querying the XDS document Registry and Repository, and the EHR data view by querying the EHR data repository.  ... 
pmid:22195140 pmcid:PMC3243277 fatcat:qyongf6xjjcv3fnvpb2h4w4wua
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