How to Parse a Result Set From a Prolog Query

Question

Hello,

I am querying an Allegrograph database with Prolog and performing this query:

@prolog_query = "(select(?id ?s ?p ?o) (q ?s ?p ?id ))"
@result_data = repository.query.perform @prolog_query

Luckily I am testing with a small data set, but I still get a big dump of data on the screen. I am using Ruby. How can I parse the @result_data array to extract the data out of the correct columns?

Answer 1

1

i think you are using agraph. Result is a hash.

if it were a sparql query like SELECT ?s ?p ?o WHERE {?s ?p ?o} limit 1

result is ;

{"names"=>["s", "p", "o"], "values"=>[["<http://dbpedia.org/ontology/Work>", "<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>", "<http://www.w3.org/2000/01/rdf-schema#Resource>"]]}

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answered 28 Jan, 10:14

Çağdaş Ol
171●1●8
accept rate: 0%

edited 28 Jan, 10:19

How to Parse a Result Set From a Prolog Query

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