How to delete all nodes that do not have any relationships - neo4j/cypher

问题

I am generating nodes in a neo4j database and want to remove those that have no relationships. What is the best cypher instruction to do this?

回答1:

Try

MATCH (n)
WHERE size((n)--())=0
DELETE (n)

来源：https://stackoverflow.com/questions/33559454/how-to-delete-all-nodes-that-do-not-have-any-relationships-neo4j-cypher