The new RDB2RDF Incubator Group is now official. The
group is sponsored by Oracle, HP, PartnersHealth, and OpenLink Software.
The goal of this effort is standardization of approaches (syntax
and methodology) for mapping Relational Data Model instance data to
RDF (Graph Data Model).
Every record in a relational table/view/stored procedure (Table
Valued Functions/Procedures) is declaratively morphed into an
Entity (instance of a Class associated with a Schema/Ontology). The
derived entities become part of a graph that exposes relationships
and relationship traversal paths that have lower JOIN Costs than
attempting the same thing directly via SQL. In a nutshell, you end
up with a conceptual interface atop a logical data layer that
enables a much more productive mechanism for exploring homogeneous
and/or heterogeneous data without confinement at the DB instance,
SQL DBMS type, host operating system, local area network, or wide
area network levels.
Just as we have to mesh the Linked Data and Document Webs,
unobtrusively. It's also important that the same principles to
apply to exposure of RDBMS hosted data as RDF based Linked
We all know that a large amount of data driving the IT engines
of most enterprises resides in Relational Databases. And contrary to recent
RDBMS vs RDF database misunderstandings
espoused (hopefully inadvertently) by some commentators, Relational
Database engines aren't going away anytime soon. Meshing Relational
(logical) and Graph (conceptual) data models a natural progression
along an evolutionary path towards: Analysis for All. By the way, there is a
parallel evolution occurring in others realms such as Microsoft's ADO.NET's Entity Framework.
To Unobtrusively expose existing data sources as RDF Linked
Data. The links that follow provide examples:
About this entry:
Author: Kingsley Uyi Idehen
Published: 03/05/2008 17:13 GMT-0500
Modified: 03/11/2008 13:58 GMT-0500
Tags: rdf , oracle , semanticweb , openlink , virtuoso , DataSpace
Categories: Demos , Virtual Database , SQL , Semantic Web
Comment Status: 0
This document is empty and basically useless. It is generated by a web service that can make some statements in HTML Microdata format.
This time the service made zero such statements, sorry.