mlw 2014 lightning talk - introduction to sparql

© COPYRIGHT 2014 MARKLOGIC CORPORATION. ALL RIGHTS RESERVED.

Introduction to SPARQL John Snelson, Lead Engineer @jpcs

© COPYRIGHT 2013 MARKLOGIC CORPORATION. ALL RIGHTS RESERVED. SLIDE: 2

RDF – DISTRIBUTED GRAPH DATA

© COPYRIGHT 2014 DEAN ALLEMANG, MARKLOGIC CORPORATION. ALL RIGHTS RESERVED. SLIDE: 3

This slide is derived from a presentation by Dean Allemang, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.

RDF: Distributed Graph Data Dean

Allemang Semantic Web for

the Working Ontologist

wrote

Stephen Buxton

John Snelson

knows

likes

Sem Web Meetup

attends

SemTechBiz

speaking at

MarkLogic

works for

knows

speaking at

speaking at

works for

attends




Allemang

Stephen Buxton

Sem Web Meetup

attends

meetup.com attends




Allemang

Stephen Buxton

John Snelson

knows

MarkLogic

works for

linkedin.com works for






wrote

workingontologist.com






John Snelson

likes

knows

facebook.com




Allemang

Stephen Buxton

John Snelson

SemTechBiz

speaking at

speaking at

speaking at

semanticweb.com






wrote

Stephen Buxton

John Snelson

knows

likes

Sem Web Meetup

attends

SemTechBiz

speaking at

MarkLogic

works for

knows

workingontologist.com facebook.com

linkedin.com meetup.com

speaking at

speaking at

works for

semanticweb.com

attends


SPARQL – RDF QUERY LANGUAGE



Data: John Snelson

SemTechBiz

speaking at

Query:

SPARQL

Queries look like the data

?who SemTechBiz

speaking at



Query: ?who SemTechBiz

speaking at

select * where { ?who :speaking-at “SemTechBiz” . }

Data: John Snelson

SemTechBiz

speaking at

:jsnelson :speaking-at “SemTechBiz” .

SPARQL

Queries look like the data



select * where { ?author :wrote ?book ; :speaking-at “SemTechBiz” . :jsnelson :likes ?book . }

Graph Patterns

Dean Allemang

Semantic Web for the Working Ontologist

wrote

Stephen Buxton

John Snelson

knows likes

Sem Web Meetup

attends

SemTechBiz

speaking at

MarkLogic

works for

knows

speaking at

speaking at

works for

attends

?author ?book wrote

John Snelson

likes

SemTechBiz

speaking at

Which authors speaking at SemTechBiz wrote a book I

like?



Graph Patterns

Dean Allemang


wrote

Stephen Buxton

John Snelson

knows likes

Sem Web Meetup

attends

SemTechBiz

speaking at

MarkLogic

works for

knows

speaking at

speaking at

works for

attends

select * where { ?author :wrote ?book ; :speaking-at “SemTechBiz” . :jsnelson :likes ?book . }

?author ?book

:dallemang “Semantic Web for the Working Ontologist”

Which authors speaking at SemTechBiz wrote a book I

like?



Graph Patterns

Dean Allemang


wrote

Stephen Buxton

John Snelson

knows likes

Sem Web Meetup

attends

SemTechBiz

speaking at

MarkLogic

works for

knows

speaking at

speaking at

works for

attends Who works for my company and knows the author of a

book I like?

?author wrote

?who John Snelson

knows likes ?company

works for works for

?book select * where { ?who :works-for ?company ; :knows ?author . :jsnelson :works-for ?company ; :likes ?book . ?author :wrote ?book . }



Graph Patterns

Dean Allemang


wrote

Stephen Buxton

John Snelson

knows likes

Sem Web Meetup

attends

SemTechBiz

speaking at

MarkLogic

works for

knows

speaking at

speaking at

works for

attends Who works for my company and knows the author of a

book I like?

?who ?company ?author ?book

:sbuxton :MarkLogic :dallemang

“Semantic Web for

the Working

Ontologist”

select * where { ?who :works-for ?company ; :knows ?author . :jsnelson :works-for ?company ; :likes ?book . ?author :wrote ?book . }


MARKLOGIC AND SPARQL


TRIPLE

XQY XSLT SQL SPARQL

GRAPH SPARQL


Triples Embedded in Documents


The Best of Both Worlds


Thank you!

mlw 2014 lightning talk - introduction to sparql

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