D2RQ – Treating Non-RDF Databases as Virtual RDF Graphs

D2RQ – Treating Non-RDF Databases as Virtual RDF Graphs
D2RQ – Treating Non-RDF Databases as Virtual RDF Graphs
Bibliographical Metadata
Year:	2004
Authors:	Christian Bizer, Andy Seaborne
Venue	ISWC
Content Metadata
Problem:	Transforming Relational Databases into Semantic Web
Approach:	No data available now.
Implementation:	D2RQ
Evaluation:	Performance Analysis

Abstract

As Semantic Web technologies are getting mature, there is a growing need for RDF applications to access the content of huge, live, non-RDF, legacy databases without having to replicate the whole database into RDF. In this poster we present D2RQ, a declarative language to describe mappings between application-specific relational database schemata and RDF-S/OWL ontologies. D2RQ allows RDF applications to treat non-RDF relational data bases as virtual RDF graphs, which can be queried using RDQL.Property "Has abstract" (as page type) with input value "As Semantic Web technologies are getting mature, there is a growing need for RDF applications to access the content of huge, live, non-RDF, legacy databases without having to replicate the whole database into RDF. In this poster we present D2RQ, a declarative language to describe mappings between application-specific relational database schemata and RDF-S/OWL ontologies. D2RQ allows RDF applications to treat non-RDF relational data bases as virtual RDF graphs, which can be queried using RDQL." contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.

Conclusion

D2RQ offers a flexible, easy-to-use access mechanism to non-RDF databases. It allows the integration of legacy databases into the data access architecture currently standardized by the W3C Data Access Working Group

Future work

No future work exists.

Approach

Positive Aspects: No data available now.

Negative Aspects: No data available now.

Limitations: No data available now.

Challenges: No data available now.

Proposes Algorithm: No data available now.

Methodology: No data available now.

Requirements: No data available now.

Limitations: No data available now.

Implementations

Download-page: https://github.com/d2rq/d2rq

Access API: No data available now.

Information Representation: No data available now.

Data Catalogue: {{{Catalogue}}}Property "Has DataCatalouge" (as page type) with input value "{{{Catalogue}}}" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.

Runs on OS: No data available now.

Vendor: No data available now.

Uses Framework: No data available now.

Has Documentation URL: No data available now.

Programming Language: Java

Version: 0.8.1

Platform: No data available now.

Toolbox: No data available now.

GUI: No