ESWC2008 Relational2RDF - Mapping Relational Databases to RDF with OpenLink Virtuoso

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Mapping Relational Databases to RDF with OpenLink Virtuoso © 2008 OpenLink Software, All rights reserved. Orri Erling - Lead Developer, Virtuoso Team

Who Wants to Map? ,[object Object],[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved.

Present State ,[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved.

Why RDF Data Warehouse? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved.

Why Map? ,[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved.

Virtuoso ,[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved.

For Mapping to Deliver... ,[object Object],[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved.

The Cases of Integration ,[object Object],[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved.

Defining a Mapping ,[object Object],[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved. Use SPARQL/SQL to:

The TPC-H Case ,[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved. http://demo.openlinksw.com/tpc-h/

$Where Problems Begin ,[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved. select * from <ods> where {?s ?p ?o . ?s has_comment ?c . ?c has_author <xxx> } select post.* from post, comment, user where c_post = p_id and c_author = u_id and u_name = f ('xxx') Once per app$

What One Must Know ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved.

SQL Extensions ,[object Object],[object Object],[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved.

Use Cases ,[object Object],[object Object],[object Object],[object Object],© 2008 OpenLink Software, All rights reserved.

OpenLink Software © 2008 OpenLink Software, All rights reserved. Thank You! http://virtuoso.openlinksw.com http://demo.openlinksw.com/tpc-h

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