sparql - Delete connected triples - 


@prefix users: <http://example.org/2017/6/user_schema#> . @prefix user: <http://example.org/2017/6/user#> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .  user:account_62eb31ea-e665-49ec-9675-4282ced149da     users:uniqueid <urn:uuid:62eb31ea-e665-49ec-9675-4282ced149da> ;     rdf:type         foaf:onlineaccount ,         users:entity ;     foaf:accountname 'foo' ;     foaf:accountservicehomepage <http://example.com/myaccount> .  user:user_62eb31ea-e665-49ec-9675-4282ced149da     rdf:type         foaf:person ,         users:administrator ,         users:user ;     foaf:holdsaccount user:account_62eb31ea-e665-49ec-9675-4282ced149da ;     foaf:mbox <mailto:foo@example.com> ;     # meaningless bnode example demonstration purposes     # should deleted     user:xxx [ user:a user:b ]  .

what try accomplish

  • find account user:uniqueid
    • delete it's triples
  • find resources references account foaf:holdsaccount <urn:uuid:62eb31ea-e665-49ec-9675-4282ced149da>
    • delete triples well
  • also delete triples related bnodes (if any)

what came with

prefix users: <http://example.org/2017/6/user_schema#> prefix user: <http://example.org/2017/6/user#> prefix foaf: <http://xmlns.com/foaf/0.1/>  <http://bewellup.org/2017/6/product/bwu_product_user> delete {    ?s ?p ?o . }   {     bind (<urn:uuid:62eb31ea-e665-49ec-9675-4282ced149da> ?accountid)   {     ?s rdf:type          foaf:onlineaccount ;         users:uniqueid ?accountid .     ?s ?p ?o .   }   union {     ?account rdf:type          foaf:onlineaccount ;         users:uniqueid ?accountid .     ?s foaf:holdsaccount ?account .     ?s ?p ?o .   } }

is there more concise or efficient way delete created triples?

how triples linked bnodes deleted?

prefix users: <http://bewellup.org/2017/6/product/bwu_user_schema#> prefix user: <http://bewellup.org/2017/6/product/bwu_product_user#> prefix foaf: <http://xmlns.com/foaf/0.1/>  <http://bewellup.org/2017/6/product/bwu_product_user> delete {    ?s ?p ?o .   ?s_del ?p_del ?o_del . } {     bind (<urn:uuid:62eb31ea-e665-49ec-9675-4282ced149da> ?accountid)   {     ?s rdf:type          foaf:onlineaccount ;         users:uniqueid ?accountid .     ?s ?p ?o .      optional{filter(isblank(?o)) ?o (:|!:)* ?s_del . ?s_del ?p_del ?o_del. }   }   union {     ?account rdf:type          foaf:onlineaccount ;         users:uniqueid ?accountid .     ?s foaf:holdsaccount ?account .     ?s ?p ?o .     optional{filter(isblank(?o)) ?o (:|!:)* ?s_del . ?s_del ?p_del ?o_del.}   } }

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