Neo4j (Graph Database) Cheat Sheet

// Create nodesCREATE (a:Person {name: "Alice", age: 30})CREATE (b:Person {name: "Bob", age: 25})// Create a relationship between existing nodesMATCH (a:Person {name: "Alice"}), (b:Person {name: "Bob"})CREATE (a)-[:FRIENDS_WITH {since: 2020}]->(b)

// Find a nodeMATCH (p:Person {name: "Alice"}) RETURN p// Traverse a relationshipMATCH (a:Person)-[:FRIENDS_WITH]->(b:Person)RETURN a.name, b.name// Shortest path between two nodesMATCH path = shortestPath(  (a:Person {name: "Alice"})-[*]-(b:Person {name: "Bob"}))RETURN path

MATCH (p:Person {name: "Alice"})SET p.age = 31MATCH (p:Person {name: "Bob"})DETACH DELETE p   // deletes the node and its relationshipsMERGE (p:Person {name: "Carol"})ON CREATE SET p.createdAt = timestamp()