Graph Database Flashcards
1
Q
What is Cypher?
A
Cypher is a query language designed for Neo4j graph databases, used to query and manipulate graph data.
2
Q
How do you find all friends of a person named Alice?
A
MATCH (n:Person {name:”Alice”})-[:FRIEND_OF]->(friend)
RETURN friend.name
3
Q
How do you find friends of Alice’s friends?
A
MATCH (n:Person {name:”Alice”})-[:FRIEND_OF*2]->(friend)
RETURN friend.name
4
Q
How do you count occurrences in a query?
A
MATCH (p1:Person)-[:INTERESTED_IN]->(i:Interest)<-[:INTERESTED_IN]-(p2:Person)
RETURN p1.name, p2.name, COUNT(*) as SharedInterests
ORDER BY SharedInterests DESC
