query-42d778bc4314c75c29c1c5fa04608e4b

rq turtle/ttl

01:05, 2 June 2017 (UTC)) talk (SharkDHowever, this does not work when the value of the item is "unknown" or "no value". How do I catch these two cases? Thanks. 02:32, 2 June 2017 (UTC)) talk (d1g: you could use BIND/variables and IF to achieve any custom logic. SharkD@ 02:20, 2 June 2017 (UTC)) talk (SharkD:: I should have been more clear. I don't want to filter these items out. I just want different text to show up if the items are: 1) blank, 2) unknown or 3) no value. Sorry. D1gggg@ 02:01, 2 June 2017 (UTC)) talk (d1g. Property talk:P577 at Items with unknown value claims and Items with novalue claims: both were used in SharkD@ ?item p:P577/a wdno:P577 ?item wdt:P577 ?value . FILTER (isBlank(?value))

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?prefix ?type ?value ?customText
WHERE
{
    wd:Q4233718 ?prefix ?value.
#   FILTER(isBlank(?value)).
    ?prefix     rdf:type ?type .
    BIND(IF(isBlank(?value), "BLANK-BLANK-BLANK", ?value) as ?customText)

  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v4("?customText"):::projected v1("?prefix"):::projected v3("?type"):::projected v2("?value"):::projected c4(["bd:serviceParam"]):::iri c1(["wd:Q4233718"]):::iri c6(["en"]):::literal c1 -->v1--> v2 v1 --"a"--> v3 bind0[/"if(isBlank(?value),'BLANK-BLANK-BLANK',?value)"/] v2 --o bind0 bind0 --as--o v4 subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c4 --"wikibase:language"--> c6 end