在 Neo4j 中如何返回特定节点或与密码的关系？

Question

You are given two arrays one for some labels and another for some relationships and you are asked to return the nodes and their relationships which are found only in the arrays you where given. I tried different approach to it but I couldn't get a better cipher to return the graph with respect to both arrays

MATCH (n)-[r]-(m) where n in ["username"] and r in ["knows"] return n,r

The code above, I know its completely wrong but it kinda shows the idea, share your thoughts 😁

Answer 1

This should work:

MATCH (n)-[r]-(m)
WHERE ANY(l IN labels(n) WHERE l IN ['username','label2'])
      AND type(r) IN ['knows','relType2']
RETURN n,r,m