Project:SPARQL query service/queries/examples
From SCDB
Simple Queries
These basic queries help to understand SPARQL and the Wikibase RDF format.
Ships
SELECT ?item ?itemLabel
WHERE
{
?item scdbt:P1 scdb:Q842.
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Ships ordered by cargo capacity
SELECT ?item ?itemLabel ?cargoCapacity WHERE
{
?item scdbt:P1 scdb:Q842;
scdbt:P61 ?cargoCapacity.
FILTER(0 < ?cargoCapacity).
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
} ORDER BY DESC(?cargoCapacity)
List manufacturers with manufacturer type
SELECT ?item ?itemLabel (GROUP_CONCAT(DISTINCT(?instanceLabel); separator=", ") as ?instances) WHERE {
?item scdbt:P1/scdbt:P26* scdb:Q843;
scdbt:P1 ?instance .
SERVICE wikibase:label {
bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
?item rdfs:label ?itemLabel .
?instance rdfs:label ?instanceLabel
}
}
GROUP BY ?item ?itemLabel
Manufacturers with their vehicles (Tree view)
#defaultView:Tree
SELECT ?manufacturer ?manufacturerLabel ?item ?itemLabel
WHERE
{
?item scdbt:P1/scdbt:P26 scdb:Q1181;
scdbt:P23 ?manufacturer.
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
} ORDER BY ?manufacturerLabel ?itemLabel
Search by label
SELECT ?item ?itemLabel WHERE {
?item rdfs:label ?itemLabel.
FILTER(REGEX(?itemLabel, "^Ballista.*", "i"))
}
LIMIT 10
List of systems
SELECT ?item ?itemLabel WHERE {
?item scdbt:P1 scdb:Q16.
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
List of jump points of Stanton system
SELECT ?item ?itemLabel WHERE {
?item scdbt:P1 scdb:Q916;
scdbt:P48 scdb:Q24.
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
STAR arkmap type
SELECT ?item ?itemLabel
WHERE
{
?item scdbt:P10 "STAR".
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
List spaceship build date (Timeline)
#defaultView:Timeline
SELECT ?item ?itemLabel ?inception WHERE
{
?item scdbt:P1 scdb:Q842;
scdbt:P2 ?inception.
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
} ORDER BY DESC(?cargoCapacity)
Ship vendors with ship list
#defaultView:Tree
SELECT ?vendor ?vendorLabel ?item ?itemLabel
WHERE
{
?item scdbt:P1/scdbt:P26 scdb:Q1181;
scdbt:P83 ?vendor .
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
All items sold with vendor and price
#defaultView:Tree
SELECT ?item ?itemLabel ?vendor (concat(?vendorLabel," - ",STR(?price)," aUEC") AS ?concat)
WHERE
{
?item scdbp:P83 ?statement .
?statement scdbps:P83 ?vendor .
?statement scdbpq:P87 ?price .
SERVICE wikibase:label {
bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en".
?vendor rdfs:label ?vendorLabel.
?item rdfs:label ?itemLabel.
}
} ORDER BY ?itemLabel ?price
All statements poiting to Aegis Dynamics (Q2)
SELECT ?prop ?propLabel ?item ?itemLabel ?itemDescription
WITH
{
SELECT *
WHERE
{
?item ?wdt scdb:Q2 .
?prop wikibase:directClaim ?wdt .
}
} as %test
WHERE
{
hint:Query hint:optimizer "None".
INCLUDE %test
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Maintenance Queries
List everything from Query Service
SELECT ?item ?itemLabel
WHERE {
?item rdfs:label ?itemLabel.
} ORDER BY ?item
Find items with same scunpacked reference
SELECT ?id (COUNT(?obj) AS ?count) (GROUP_CONCAT(?obj; SEPARATOR = " , ") AS ?items)
WHERE
{
?obj scdbt:P78 ?id.
}
GROUP BY ?id
HAVING(?count > 1)