21_count_rhea_examples

rq turtle/ttl

SELECT the number of reactions in Rhea

Use at

• https://sparql.rhea-db.org/sparql/

PREFIX rh:<http://rdf.rhea-db.org/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT (count(?reaction) as ?reactionCount) WHERE {
  ?reaction rdfs:subClassOf rh:Reaction .
}

graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
  v1("?reaction"):::projected 
  v2("?reactionCount")
  c2(["rh:Reaction"]):::iri 
  v1 --"rdfs:subClassOf"-->  c2
  bind1[/"count(?reaction)"/]
  v1 --o bind1
  bind1 --as--o v2