123,000+This user has made over 123,000 contributions to Wikidata.
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WikiProject Australia.
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WikiProject Informatics.
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Contact detailsEdit

E-mail: david@hicks.id.au

ProjectsEdit

I have interests in the following projects:

BotsEdit

I look after and run the following bots:

Example queriesEdit

List RFC standards whose titles contain "SMTP", displaying their main subjectsEdit

The following query uses these:

  • Properties: instance of (P31)     , title (P1476)     , main subject (P921)     , RfC ID (P892)     
    SELECT ?RfC_ID ?Request_for_Comments ?Request_for_CommentsLabel ?main_subject ?main_subjectLabel ?RfC_IDLabel WHERE {
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
      ?Request_for_Comments wdt:P31 wd:Q212971.
      ?Request_for_Comments wdt:P1476 ?title.
      OPTIONAL { ?Request_for_Comments wdt:P921 ?main_subject. }
      OPTIONAL { ?Request_for_Comments wdt:P892 ?RfC_ID. }
      FILTER regex(str(?title), "SMTP")
    }
    ORDER BY ?RfC_ID
    

Equations used to calculate qualities of investment strategiesEdit

The following query uses these:

  • Properties: instance of (P31)     , subclass of (P279)     , has quality (P1552)     , defining formula (P2534)     
    SELECT ?trading_strategy ?trading_strategyLabel ?classLabel ?quality ?qualityLabel ?equation WHERE {
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
      ?trading_strategy wdt:P31*/wdt:P279* wd:Q1574928.
      ?trading_strategy wdt:P279 ?class.
      ?trading_strategy wdt:P1552 ?quality.
      OPTIONAL { ?quality wdt:P2534 ?equation }.
    }