How to add entities and relations with in CSV

[ameyasoft]

Try this:

LOAD CSV WITH HEADERS FROM "file:///relations.csv" AS row
MATCH (f:Node), (s:Node)
WHERE f.Name = row.FromNode
AND s.Name = row.ToNode
CALL apoc.create.relationship(f, row.R1,{}, s) YIELD rel
REMOVE rel.noOp

Follow this link:

How to create dynamic relations from csv with apoc?

Thanks a lot: it worked. Please, can you explain If you need the equivalent of a no-op then you can remove a non-existent property from a node or relationship I don't understand when and how REMOVE rel.noOp works