Adam Williamson
Adam Williamson

Reputation: 295

neo4j return a relationship that isn't defined

I am quite new to graph databases so what I am asking may be completely made up in my head.

I have three nodes, product, supplier and country which looks like the below (feedback welcome on appraoch). neo4j graph

I would like to return the product and the country BUT I would like to return a relationship between them to show they are connected (I am envisioning two nodes connected by a line). I got this far where I can return product and supplier but no matter which way I spin the syntax I can't seem to get product and country connected by a relationship on return. Is that even possible?

match (p1:part)<--(s1:supplier)-->(c1:country) return (p1)--(s1)

Any help would be greatly appreciated.

Regards, Adam

Upvotes: 0

Views: 136

Answers (1)

cybersam
cybersam

Reputation: 66999

You can use the APOC virtual nodes and relationships functions to visualize relationships (or nodes) that do not really exist in the DB.

For example:

MATCH (p:part)<-[:SUPPLIES]-(:supplier)-[:LOCATED_IN]->(c:country)
RETURN p, c, apoc.create.vRelationship(p, 'IS_IN', {}, c) as rel

produces this visualization in the neo4j Browser:

enter image description here

Upvotes: 1

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