SPARQL for Business Intelligence Orri Erling - Program Manager, Virtuoso © 2008 OpenLink Software, All rights reserved.

Orri Erling - Program Manager, Virtuoso

For The Data Web to Deliver Promise of limitless integration and analysis Existing SQL workloads should naturally fall within SPARQL’s scope Surfing and joining between relational data and RDF should be seamless © 2008 OpenLink Software, All rights reserved.

Promise of limitless integration and analysis

Existing SQL workloads should naturally fall within SPARQL’s scope

Surfing and joining between relational data and RDF should be seamless

What Is Missing? Aggregation Nested Queries Expressions © 2008 OpenLink Software, All rights reserved.

Aggregation

Nested Queries

Expressions

Mapped vs. Physical RDF Predicates are unspecified Combining lots off different data sources Lots of A-box inference (SameAs, Transitivity) Mapped is better, if: © 2008 OpenLink Software, All rights reserved. Can push all to RDBMS - about 10x faster Data is time-sensitive, frequently changing, very large Physical is better, if:

Predicates are unspecified

Combining lots off different data sources

Lots of A-box inference (SameAs, Transitivity)

Mapped is better, if:

Can push all to RDBMS - about 10x faster

Data is time-sensitive, frequently changing, very large

When defining mappings... Be careful when many tables make one entity - you may get lots of unions Make explicit IRI scheme to limit pointless joining Know what the mapper and SQL can and cannot optimize © 2008 OpenLink Software, All rights reserved.

Be careful when many tables make one entity - you may get lots of unions

Make explicit IRI scheme to limit pointless joining

Know what the mapper and SQL can and cannot optimize

Some Present Work Refining generated SQL There is no reason why SPARQL mapped should not equal SQL in performance, when going to single DBMS © 2008 OpenLink Software, All rights reserved.

Refining generated SQL

There is no reason why SPARQL mapped should not equal SQL in performance, when going to single DBMS

Joining Between Mapped and Physical Special SQL logic is needed when joining IRI IDs of physical quads with IRI strings of virtual triples SameAs requires special attention © 2008 OpenLink Software, All rights reserved.

Special SQL logic is needed when joining IRI IDs of physical quads with IRI strings of virtual triples

SameAs requires special attention

Use Cases OpenLink MIS All accounts, CRM, products, emails, support cases have URIs MusicBrainz OpenLink Data Spaces PHPbb, Mediawiki, Drupal, etc. © 2008 OpenLink Software, All rights reserved.

OpenLink MIS

All accounts, CRM, products, emails, support cases have URIs

MusicBrainz

OpenLink Data Spaces

PHPbb, Mediawiki, Drupal, etc.

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