User:Wiljes/chemistry
Links edit
Other resources edit
Basics edit
Gib mir alle Stoffeigenschaften! edit
SELECT ?p ?pLabel
WHERE
{
?p wdt:P31 wd:Q764285 .
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY ?pLabel
Gib mir alle Wikidata property to identify substances (Q19833835)! edit
SELECT ?p ?pLabel
WHERE
{
?p wdt:P31 wd:Q19833835 .
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY ?pLabel
Questions edit
Give me all chemical elements! edit
SELECT ?ordnungszahl ?p ?pLabel ?symbol
WHERE
{
?p wdt:P31 wd:Q11344 .
?p wdt:P246 ?symbol .
?p wdt:P1086 ?ordnungszahl .
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY ASC(?ordnungszahl)
Give me all chemical compounds! edit
SELECT ?p ?pLabel ?formel
WHERE
{
?p wdt:P31 wd:Q11173 .
OPTIONAL {?p wdt:P274 ?formel}
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} LIMIT 1000
.. all chemical substances! edit
SELECT ?p ?pLabel
WHERE
{
?p wdt:P31 wd:Q79529 .
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY ASC(?pLabel)
Give me all chemical compounds or elements with glass transition temperatures! edit
SELECT ?p ?pLabel ?value ?unitLabel
WHERE
{
{?p wdt:P31 wd:Q11173} UNION {?p wdt:P31 wd:Q11344}
?p p:P5670 ?stmnode. # length
?stmnode psv:P5670 ?valuenode.
?valuenode wikibase:quantityAmount ?value.
?valuenode wikibase:quantityUnit ?unit.
?valuenode wikibase:quantityLowerBound ?lowerbound.
?valuenode wikibase:quantityUpperBound ?upperbound.
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY ASC(?q)
Give me all chemical compounds or elements with melting points (in Celsius)! edit
SELECT ?p ?pLabel ?value ?unitLabel
WHERE
{
{?p wdt:P31 wd:Q11173} UNION {?p wdt:P31 wd:Q11344}
?p p:P2101 ?stmnode.
?stmnode psv:P2101 ?valuenode.
?valuenode wikibase:quantityAmount ?value.
?valuenode wikibase:quantityUnit ?unit.
?valuenode wikibase:quantityUnit wd:Q25267 . # in Celsius only
?valuenode wikibase:quantityLowerBound ?lowerbound.
?valuenode wikibase:quantityUpperBound ?upperbound.
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY ASC(?value)
Give me all name reactions! edit
SELECT ?p ?pLabel
WHERE
{
?p wdt:P31 wd:Q1049494 .
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY ASC(?pLabel)
Give me all chemists! edit
SELECT ?p ?pLabel ?birthdate
WHERE
{
?p wdt:P106 wd:Q593644 .
OPTIONAL { ?p wdt:P569 ?birthdate }
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY DESC(?birthdate)
...female chemists only! edit
SELECT ?p ?pLabel ?birthdate
WHERE
{
?p wdt:P106 wd:Q593644 .
?p wdt:P21 wd:Q6581072 .
OPTIONAL { ?p wdt:P569 ?birthdate }
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY DESC(?birthdate)
...Nobel Prize winners in chemistry! edit
SELECT ?p ?pLabel ?year
WHERE
{
?p wdt:P106 wd:Q593644 .
?p p:P166 ?statement .
?statement ps:P166 wd:Q44585 .
?statement pq:P585 ?year .
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY ASC(?year)
Give me entities that have a IUPAC Goldbook identifier! edit
SELECT ?p ?pLabel ?qLabel
WHERE
{
?p wdt:P4732 ?q .
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY ASC(?pLabel)
Give me all Wikipedia pages that are using using Wikidata property IUPAC Gold Book ID (P4732)! edit
SELECT ?p ?pLabel
WHERE
{
?p wdt:P31 wd:Q47455437 .
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY ASC(?pLabel)
Exploring + Statistics edit
Properties most often pointing to Name reactions edit
modelled after [1]
UNDER CONSTRUCTION
SELECT ?property (COUNT(?item) AS ?count)
WHERE {
?item ?statement wd:Q1049494 . # items pointing to Q3324507 through a statement
?property wikibase:statementProperty ?statement . # property used for that statement
}
GROUP BY ?property # count usage for each property pointing to that entity
ORDER BY DESC(?count) # show in descending order of uses
...all properties used by name reactions! edit
SELECT DISTINCT ?prop ?propLabel (COUNT(?prop) AS ?number)
WHERE {
hint:Query hint:optimizer "None" . # recommended to display the property's label
?prop wikibase:directClaim ?p . # needed to display the property's label
?instance wdt:P31 wd:Q1049494 .
?instance ?p ?o .
SERVICE wikibase:label {bd:serviceParam wikibase:language "en,de"}
} GROUP BY ?prop ?propLabel
ORDER BY DESC(?number)
...all properties that are used by chemical elements or chemical compounds! edit
TIMEOUT
SELECT DISTINCT ?prop ?propLabel (COUNT(?prop) AS ?number)
WHERE {
hint:Query hint:optimizer "None" . # recommended to display the property's label
?prop wikibase:directClaim ?p . # needed to display the property's label
{?instance wdt:P31 wd:Q11344} UNION {?instance wdt:P31 wd:Q11173}
?instance ?p ?o .
SERVICE wikibase:label {bd:serviceParam wikibase:language "en,de"}
} GROUP BY ?prop ?propLabel
ORDER BY DESC(?number)
...stripped down to optimize, but still TIMEOUT</soan):
SELECT DISTINCT ?p (COUNT(?p) AS ?number)
WHERE {
?instance wdt:P31 wd:Q11173 .
?instance ?p ?o .
} GROUP BY ?p
ORDER BY DESC(?number)
...all properties of type Wikidata property to identify substances (Q19833835) that are used by chemical elements or chemical compounds! edit
elements only, to prevent timeout
SELECT DISTINCT ?prop ?propLabel (COUNT(?prop) AS ?number)
WHERE {
hint:Query hint:optimizer "None" . # recommended to display the property's label
?prop wikibase:directClaim ?p . # needed to display the property's label
# {?instance wdt:P31 wd:Q11344} UNION {?instance wdt:P31 wd:Q11173}
?instance wdt:P31 wd:Q11344 .
?instance ?p ?o .
?prop wdt:P31 wd:Q19833835 .
SERVICE wikibase:label {bd:serviceParam wikibase:language "en,de"}
} GROUP BY ?prop ?propLabel
ORDER BY DESC(?number)
Housekeeping edit
Give me all chemical elements that are also chemical compounds! edit
This should not happen!
SELECT ?p ?pLabel
WHERE
{
?p wdt:P31 wd:Q11344 .
?p wdt:P31 wd:Q11173 .
SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en" . }
} ORDER BY ASC(?pLabel)