What would SPARQL return
-2
Assuming there are 4 RDF triplestores and RDF prefixes have already been defined:
ex:Tom foaf:knows ex:Jerry
ex:Jerry foaf:interest “cheese”
ex:Tom foaf:interest “traps”
ex:Jerry rdfs:subClassOf dbo:animal
What would the SPARQL query below return (assuming these are in table format)?
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT ?x
{?x foaf:interest ?interest}
sparql rdf
edited Nov 22 at 17:39
AKSW
7,0641820
asked Nov 22 at 13:27
Study Diary
13
add a comment |
-2
Assuming there are 4 RDF triplestores and RDF prefixes have already been defined:
ex:Tom foaf:knows ex:Jerry
ex:Jerry foaf:interest “cheese”
ex:Tom foaf:interest “traps”
ex:Jerry rdfs:subClassOf dbo:animal
What would the SPARQL query below return (assuming these are in table format)?
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT ?x
{?x foaf:interest ?interest}
sparql rdf
edited Nov 22 at 17:39
AKSW
7,0641820
asked Nov 22 at 13:27
Study Diary
13
well, you should learn the terminology: "4 RDF triple stores" - clearly, not - this are 4 RDF triples. And did you read a SPARQL tutorial? Or even more obvious, did you try the query on the data? It's by the way trivial if you already know that SPARQL is all about pattern matching. I mean, even without knowing SPARQL, one would think that the variables are just placeholders and we search for RDF triples matching the pattern
– AKSW
Nov 22 at 17:38
I think I know but I just want to make sure. Is it cheese and trap
– Study Diary
Nov 23 at 8:07
well, no...you doSELECT ?x, so what is returned? Obviously, all bindings of?xmatching triples in the RDF data.
– AKSW
Nov 23 at 8:27
add a comment |
-2
-2
-2
Assuming there are 4 RDF triplestores and RDF prefixes have already been defined:
ex:Tom foaf:knows ex:Jerry
ex:Jerry foaf:interest “cheese”
ex:Tom foaf:interest “traps”
ex:Jerry rdfs:subClassOf dbo:animal
What would the SPARQL query below return (assuming these are in table format)?
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT ?x
{?x foaf:interest ?interest}
sparql rdf
edited Nov 22 at 17:39
AKSW
7,0641820
asked Nov 22 at 13:27
Study Diary
13
Assuming there are 4 RDF triplestores and RDF prefixes have already been defined:
ex:Tom foaf:knows ex:Jerry
ex:Jerry foaf:interest “cheese”
ex:Tom foaf:interest “traps”
ex:Jerry rdfs:subClassOf dbo:animal
What would the SPARQL query below return (assuming these are in table format)?
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT ?x
{?x foaf:interest ?interest}
sparql rdf
sparql rdf
edited Nov 22 at 17:39
AKSW
7,0641820
asked Nov 22 at 13:27
Study Diary
13
edited Nov 22 at 17:39
AKSW
7,0641820
asked Nov 22 at 13:27
Study Diary
13
edited Nov 22 at 17:39
AKSW
7,0641820
edited Nov 22 at 17:39
AKSW
7,0641820
edited Nov 22 at 17:39
AKSW
7,0641820
7,0641820
asked Nov 22 at 13:27
Study Diary
13
asked Nov 22 at 13:27
Study Diary
13
asked Nov 22 at 13:27
Study Diary
13
13
well, you should learn the terminology: "4 RDF triple stores" - clearly, not - this are 4 RDF triples. And did you read a SPARQL tutorial? Or even more obvious, did you try the query on the data? It's by the way trivial if you already know that SPARQL is all about pattern matching. I mean, even without knowing SPARQL, one would think that the variables are just placeholders and we search for RDF triples matching the pattern
– AKSW
Nov 22 at 17:38
I think I know but I just want to make sure. Is it cheese and trap
– Study Diary
Nov 23 at 8:07
well, no...you doSELECT ?x, so what is returned? Obviously, all bindings of?xmatching triples in the RDF data.
– AKSW
Nov 23 at 8:27
add a comment |
well, you should learn the terminology: "4 RDF triple stores" - clearly, not - this are 4 RDF triples. And did you read a SPARQL tutorial? Or even more obvious, did you try the query on the data? It's by the way trivial if you already know that SPARQL is all about pattern matching. I mean, even without knowing SPARQL, one would think that the variables are just placeholders and we search for RDF triples matching the pattern
– AKSW
Nov 22 at 17:38
I think I know but I just want to make sure. Is it cheese and trap
– Study Diary
Nov 23 at 8:07
well, no...you doSELECT ?x, so what is returned? Obviously, all bindings of?xmatching triples in the RDF data.
– AKSW
Nov 23 at 8:27
well, you should learn the terminology: "4 RDF triple stores" - clearly, not - this are 4 RDF triples. And did you read a SPARQL tutorial? Or even more obvious, did you try the query on the data? It's by the way trivial if you already know that SPARQL is all about pattern matching. I mean, even without knowing SPARQL, one would think that the variables are just placeholders and we search for RDF triples matching the pattern
– AKSW
Nov 22 at 17:38
well, you should learn the terminology: "4 RDF triple stores" - clearly, not - this are 4 RDF triples. And did you read a SPARQL tutorial? Or even more obvious, did you try the query on the data? It's by the way trivial if you already know that SPARQL is all about pattern matching. I mean, even without knowing SPARQL, one would think that the variables are just placeholders and we search for RDF triples matching the pattern
– AKSW
Nov 22 at 17:38
I think I know but I just want to make sure. Is it cheese and trap
– Study Diary
Nov 23 at 8:07
I think I know but I just want to make sure. Is it cheese and trap
– Study Diary
Nov 23 at 8:07
well, no...you do
SELECT ?x, so what is returned? Obviously, all bindings of ?x matching triples in the RDF data.– AKSW
Nov 23 at 8:27
well, no...you do
SELECT ?x, so what is returned? Obviously, all bindings of ?x matching triples in the RDF data.– AKSW
Nov 23 at 8:27
add a comment |
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well, you should learn the terminology: "4 RDF triple stores" - clearly, not - this are 4 RDF triples. And did you read a SPARQL tutorial? Or even more obvious, did you try the query on the data? It's by the way trivial if you already know that SPARQL is all about pattern matching. I mean, even without knowing SPARQL, one would think that the variables are just placeholders and we search for RDF triples matching the pattern
– AKSW
Nov 22 at 17:38
I think I know but I just want to make sure. Is it cheese and trap
– Study Diary
Nov 23 at 8:07
well, no...you do
SELECT ?x, so what is returned? Obviously, all bindings of?xmatching triples in the RDF data.– AKSW
Nov 23 at 8:27