neo4j cypher update existing node or create new node

Question

I have a graph with approximately nine million nodes, and twelve million relationships. For each of the nodes within the graph there is a subset of properties for each respectiv

Answer 1

I'd say that this is the best way. Depending on the Neo4j interface you are using, you could write a single query that would handle everything without custom SET commands, but I'm guessing that you were just simplifying the question and have that covered.