Wikibase/Indexing/SPARQL Query Examples

Syntax according to RDF Dump format. See also https://phabricator.wikimedia.org/T86786

Standard Prefixes
These should be used every time before the query:

PREFIX wd:  PREFIX wdt:  PREFIX wikibase:  PREFIX p:  PREFIX v:  PREFIX q:  PREFIX rdfs: 

US presidents and spouses

 * Items used:
 * Properties used: ,

Presidents & causes of death

 * Items used:
 * Properties used: ,

People born before year 1880 with no death date

 * Items used:
 * Properties used:, ,

Largest cities with female mayor

 * Items used: ,
 * Properties used:, , , , ,

List of countries ordered by the number of their cities with female mayor

 * Items used: ,
 * Properties used:, , , , ,

How many states this US state borders

 * Items used:
 * Properties used: ,

Whose birthday is today?

 * Properties used:

Who discovered the most asteroids?

 * Items used:
 * Properties used: ,

Who discovered the most planets?

 * Items used:
 * Properties used:, ,

American universities founded before the states they reside in were created

 * Items used:.
 * Properties used:, , , ,

What is the relation between Terrell Buckley and Miami Dolphins?

 * Items used: ,

Properties that are defined as "qualifier only" but are used in references

 * Items used:
 * Properties used:

Aliases of properties which are used more than once

 * Items used: none
 * Properties used: all

WDQ queries: https://www.wikidata.org/wiki/Wikidata:List_of_queries