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Implementing XML Schema inside a ‘Relational ’ Database

by unknown authors
"... XML Schema has emerged as a promising data model that unites structured and unstructured content. The Oracle database has led the commercial database community in integrating support for XML Schema inside an enterprise data server. The foundation for this was laid with the absorption of the SQL:1999 ..."
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:1999 'objectrelational' type system in the database, which provided the necessary hierarchical abstractions necessary for representing XML. We look at how XML Schemas have been implemented in Oracle XML DB, what optimizations are available to cover the diverse use-cases for schema-based XML

J.J.: Extending xml schema with derived elements

by Felipe Ibáñez, Oscar Díaz, Juan J. Rodríguez - In: IFIP WG8.1 Working Conference on Engineering Information Systems in the Internet Context. (2001
"... Abstract XML is becoming the standard for document description, and XML Schema is gaining wide acceptance as the schema language to define the set of elements and attribute names that describe the content of a document. This work proposes both a knowledge model and an execution model to extend XML S ..."
Abstract - Cited by 2 (2 self) - Add to MetaCart
Abstract XML is becoming the standard for document description, and XML Schema is gaining wide acceptance as the schema language to define the set of elements and attribute names that describe the content of a document. This work proposes both a knowledge model and an execution model to extend XML

Binary XML Storage and Query Processing in Oracle 11g

by Ning Zhang, Nipun Agarwal, Sivasankaran Chandrasekar, Sam Idicula, Vijay Medi, Sabina Petride, Balasubramanyam Sthanikam
"... Oracle RDBMS has supported XML data management for more than six years since version 9i. Prior to 11g, textcentric XML documents can be stored as-is in a CLOB column and schema-based data-centric documents can be shredded and stored in object-relational (OR) tables mapped from their XML Schema. Howe ..."
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Oracle RDBMS has supported XML data management for more than six years since version 9i. Prior to 11g, textcentric XML documents can be stored as-is in a CLOB column and schema-based data-centric documents can be shredded and stored in object-relational (OR) tables mapped from their XML Schema

XDerive: a namespace for defining derived elements in XML Schema �

by Oscar Díaz, Felipe I. Anfurrutia
"... Abstract. XML is becoming the standard for document description in a B2B setting, and XML Schema is gaining wide acceptance as the schema language to define the structure of these documents. Transactional documents as those currently found in B2B applications, frequently comprise derived elements, i ..."
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the derivation semantics to the document schema, and (2) by proposing an attachment where the deriving elements are recorded. These ideas have been realized by extending the Oracle´s XML Parser. Now, this parser can be configured to become “derivation aware”. That is, the deriving functions can now be found

AN EXTENSIBLE “SCHEMA-LESS ” DATABASE FRAMEWORK FOR

by unknown authors
"... Object-Relational database management system is an integrated hybrid cooperative approach to combine the best practices of both the relational model utilizing SQL queries and the object-oriented, semantic paradigm for supporting complex data creation. In this paper, a highly scalable, information on ..."
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on demand database framework, called NETMARK, is introduced. NETMARK takes advantages of the Oracle 8i object-relational database using physical addresses data types for very efficient keyword search of records spanning across both context and content. NETMARK was originally developed in early 2000 as a

Towards a Physical XML independent XQuery/SQL/XML Engine

by Zhen Hua Liu, Sivasankaran Chandrasekar, Thomas Baby, Hui J. Chang , 2008
"... There has been a lot of research and industrial effort on building XQuery engines with different kinds of XML storage and index models. However, most of these efforts focus on building either an efficient XQuery engine with one kind of XML storage, index, view model in mind or a general XQuery engin ..."
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languages in one RDBMS. In this paper, we show our industrial work of building a combined XQuery and SQL/XML engine that is able to work and provide optimization for different kinds of XML storage and index models in Oracle XMLDB. This work is based on XML extended relational algebra as the underlying tuple

Performance of Using Oracle XMLDB in the Evaluation of CDISC ODM for a Clinical Study Informatics System

by Shaohua Alex Wang A, Yang Fann B, Huey Cheung A, Frank Pecjak A, Barg Upender A, Adam Frazin A, Raj Lingam B, Sarada Chintala A, Gladys Wang B, Marc Kellogg A, Robert L. Martino A, Calvin A. Johnson A
"... This paper describes potential strategies for data modeling and implementation as part of the general architecture of CSIS, a Clinical Study and Informatics System that has been developed for the National Institute of Neuroscience and Stroke (NINDS). We discuss the NINDS requirements and how they in ..."
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that it is feasible to implement CDISC ODM in Oracle XMLDB and the schema-based storage option for storing XML content is better than “CLOB”-based for applications that require high numbers of queries for XML fragments. For storage and retrieval of whole XML documents, CLOB storage is optimal. CSIS implements a

X-Cube: A fleXible XML Mapping System Powered by XQuery

by Steffen Christ, Steffen Christ, Elke A. Rundensteiner, Elke A. Rundensteiner , 2002
"... Data management of XML using relational technology has received increased attention in recent years and a large variety of mapping strategies has been proposed for that purpose. However, there still is the lack of a generic mapping framework to support all possible mapping strategies and glue them t ..."
Abstract - Cited by 4 (2 self) - Add to MetaCart
together as desired by an XML database designer. Current solutions are often hard-coded or they are bound to one particular mapping strategy. We thus present the first FleXible XML Mapping System Powered by XQuery, called X-Cube. X-Cube supports the coordinated generation of the Default XML Schema as well

Converting cXML Business Transactions to a Semantic Data Model

by Daniel Teixeira
"... Abstract. Companies are using XML-based standards in order to rapidly and accurately process electronic transactions. For example, cXML has been widely adopted in B2B integration. Major companies, such as Microsoft, Visa and FedEx are using this specification to conduct business in a daily basis. Al ..."
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. Although XML gained a strong importance in providing syntactic interoperability, we believe that companies have already started to shift for a semantic level. For example, Vodafone, Oracle and Microsoft are already implementing semantic features in their services. To support this shift, tools are available

Use of XML for Web-Based Query Processing of Geospatial Data

by Ying Teng, Dean Of Graduate Studies - Master Thesis, THE UNIVERSITY OF NEW , 2000
"... New standards for geospatial data representation are emerging. For example, the ISO (the International Organization for Standardization) geospatial metadata draft standard defines a new object-oriented representation schema. Existing collections of geospatial data and metadata need tools to transfor ..."
Abstract - Cited by 3 (0 self) - Add to MetaCart
way of generating the XML DTD (Document Type Definition). Search engines for searching ISO XML metadata files on the Web by geospatial coordinates, dates and strings were developed by using a GSDindex (geospatial data index based on R-tree and AVL trees) approach and a relational(Oracle 8) database
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