Slides da palestra – Criando sistemas de recomendação com Neo4j

// Movie Graph
:play movie-graph

Match
MATCH (tom {name: "Tom Hanks"}) RETURN tom

Limit
MATCH (n:Movie) RETURN n LIMIT 25

Insert Node
CREATE (Jhonathan:Person {name:'Jhonathan Soares', born:1990})

Insert Relationship
MATCH (p:Person {name:'Jhonathan Soares'}), (m:Movie {title:'The Matrix'})
CREATE (p)-[:ACTED_IN {roles:['Figurant']}]->(m)


Shortestpath
MATCH (jhonathan:Person { name:'Jhonathan Soares' }),(keanu:Person { name: 'Keanu Reeves' }), p = shortestPath((jhonathan)-[*..15]-(keanu)) RETURN p


Execution Plan
EXPLAIN MATCH (jhonathan:Person { name:'Jhonathan Soares' }),(keanu:Person { name: 'Keanu Reeves' }), p = shortestPath((jhonathan)-[*..15]-(keanu)) RETURN p