Review of existing network query languages #2
Description
I am going to list here some query languages for graphs that exists
Cypher
MATCH (node:Label) RETURN node.property
MATCH (node1:Label1)-->(node2:Label2)
WHERE node1.propertyA = {value}
RETURN node2.propertyA, node2.propertyB
Gremlin
user--rated[stars:0-5]-->movie
user--occupation-->occupation
movie--category-->category
gremlin> g.V().hasLabel('movie').values('year').min()
NQL
inspired by SQL -based attempt
SELECT (name like 'Roman*Empire*')
/ [
depth='5'
USEONLY (CHN_TYPE='COUNTRY' name='country-previous-next')
]
/ (name like '*Empire*')
LIMIT 100
Facebook Graph (user search query)
notes : how the parser works
places that people who work at x visited
movies liked by people who visited x
movies liked by people who visited x-city/state
SPARQL (RDF)
SELECT ?title
WHERE
{
<http://example.org/book/book1> <http://purl.org/dc/elements/1.1/title> ?title .
}