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== SPARQL Queries == | == SPARQL Queries == | ||
=== Creators in CLB-LOD === | === Creators in CLB-LOD === | ||
<sparql tryit="1"> | <sparql tryit="1"> |
Revision as of 14:02, 2 October 2022
Welcome to CLB-LOD Wikibase, a Wikibase instance hosted on wikibase.cloud. This is a sandbox for working towards MARC bibliographical records LOD-ification, with the final goal of their integration in Wikidata, with CLB Czech Literary Bibliography MARC-XML data as showcase. This is a project carried out in the framework of DARIAH WG Bibliodata.
SPARQL Queries
Creators in CLB-LOD
PREFIX clbwb: <https://clb-lod.wikibase.cloud/entity/>
PREFIX clbdp: <https://clb-lod.wikibase.cloud/prop/direct/>
PREFIX clbp: <https://clb-lod.wikibase.cloud/prop/>
PREFIX clbps: <https://clb-lod.wikibase.cloud/prop/statement/>
PREFIX clbpq: <https://clb-lod.wikibase.cloud/prop/qualifier/>
PREFIX clbpr: <https://clb-lod.wikibase.cloud/prop/reference/>
PREFIX clbno: <https://clb-lod.wikibase.cloud/prop/novalue/>
select ?wikibase_item ?label
(iri(concat("http://www.wikidata.org/entity/",?wikidata)) as ?wikidata_link)
(iri(concat("https://aleph.nkp.cz/F/?func=find-c&local_base=aut&ccl_term=ica=",?nkcr)) as ?nkcr_link)
(count(?bibitem) as ?author_roles)
where {
?wikibase_item clbdp:P5 clbwb:Q5; rdfs:label ?label. filter (lang(?label)="en")
?wikibase_item clbdp:P8 ?nkcr .
optional {?wikibase_item clbdp:P1 ?wikidata .}
optional {?bibitem clbdp:P12 ?wikibase_item .}
} group by ?wikibase_item ?label ?nkcr ?wikidata ?author_roles order by desc(?author_roles)
UDC Classificators in CLB-LOD
UDC Classificators, at the moment, are represented as literals as in MARC. A conceptual mapping, i.e. linking classificators to concepts, is planned.
PREFIX clbwb: <https://clb-lod.wikibase.cloud/entity/>
PREFIX clbdp: <https://clb-lod.wikibase.cloud/prop/direct/>
PREFIX clbp: <https://clb-lod.wikibase.cloud/prop/>
PREFIX clbps: <https://clb-lod.wikibase.cloud/prop/statement/>
PREFIX clbpq: <https://clb-lod.wikibase.cloud/prop/qualifier/>
PREFIX clbpr: <https://clb-lod.wikibase.cloud/prop/reference/>
PREFIX clbno: <https://clb-lod.wikibase.cloud/prop/novalue/>
select ?udc_literal (count(?wikibase_item) as ?bibitems)
where {
?wikibase_item clbp:P86 [clbpq:P87 ?udc_literal] .
} group by ?udc_literal ?bibitems order by desc(?bibitems)
See also some more SPARQL examples.