How to get all connected nodes in neo4j graph in py2neo

Question

Is there a way with py2neo to get all the connected nodes in a graph. All nodes that are connected by relationship?

score 5 · Accepted Answer · answered Nov 02 '15 at 17:30

5

You can execute a Cypher query that will return you those :

res = graph.cypher.execute("MATCH (n) WHERE size((n)--()) > 0 RETURN n");
for r in res:
    print r

answered Nov 02 '15 at 17:30

score 0 · Answer 2 · answered Nov 02 '15 at 21:37

0

This Cypher query should be good enough:

MATCH (n)--() RETURN DISTINCT n

answered Nov 02 '15 at 21:37

cybersam

the query looks simpler, however if you compare the profiles, the solution I provided is really more performant – Christophe Willemsen Nov 02 '15 at 22:14

2 Answers2