CODEWITHSUNDEEP
neo4j
Gandalf
Gandalf

Reputation: 13693

Get all nodes linked by a specific relationship

I have created a vehicle make called Toyota and also created a new node store my vehicle models.

CREATE (Make:make{name: "Toyota"}) 
CREATE (Model:model {name: "Camry"})
CREATE (Make)-[r:MODEL_OF]->(Model) 
RETURN Make, Model

I added two more vehicle models

CREATE (Model:model {name: "Vitz"})
CREATE (Model:model {name: "Corolla"})

and linked the two models to Toyota

MATCH (a:make), (b:model) WHERE a.name = "Toyota" AND b.name = "Vitz" 
CREATE (a)-[r: MODEL_OF]->(b) 
RETURN a,b 


MATCH (a:make), (b:model) WHERE a.name = "Toyota" AND b.name = "Corolla" 
CREATE (a)-[r: MODEL_OF]->(b) 
RETURN a,b

How can i return all models of make Toyota that have the relationship MODEL_OF?

I have tried this

MATCH (Make:make {name: "Toyota"})<-[r:MODEL_OF]-(n) 
RETURN n.name

and i get

(no changes, no records)

I have several models of Toyota related to Toyota so its not supposed to return zero results.

Upvotes: 0

Views: 30

Answers (1)

Graphileon
Graphileon

Reputation: 5385

It seems your data and your query are using opposite directions.

data:

   (:make)-[:MODEL_OF]->(:model)

query

   (:make)<-[:MODEL_OF]-(:model)

So it is no surprise the query returns nothing. One of the two has to be changed.

Upvotes: 1

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