CODEWITHSUNDEEP
neo4jcypherrelationship
Hugo Moutinho
Hugo Moutinho

Reputation: 103

Why CREATE [relation] create 2 empty nodes in Neo4j?

I first create this 2:

CREATE (user1:Person {name:"User1"})

CREATE (user2:Person {name:"User2"})

And when I try

CREATE (user1)-[:FOLLOWS]->(user2)

It creates 2 empty nodes with no name nor anything related by the FOLLOW, but both nodes "User1"and "User2" are never blessed by my simple intention of relating them.

Why is this simple thing not working?

Upvotes: 2

Views: 548

Answers (1)

Dave Bennett
Dave Bennett

Reputation: 11216

You are processing the statements separately. The user1 and user2 are identifiers that apply to a specific cypher statement. By the time you execute the last statement cypher no longer has a reference for user1 and user2.

You could write

match (u1:Person {name:"User1"}), (u2:Person {name:"User2"})
create (u1)-[:FOLLOWS]->(u2)

and that would find the nodes that you had previously created and join them with the :FOLLOWS relationship.

So when you just specified the identifiers int eh create statement it would match every node and join them.

Upvotes: 2

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