SET, REMOVE, DELETE, DETACH DELETE

Mutating an existing graph — and the one keyword that prevents accidents.

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Mutation verbs

The four mutation verbs

SET p.age = 33 — set / add a property.
SET p:Senior — add a label.
REMOVE p.age — drop a property; REMOVE p:Senior — drop a label.
DELETE r — delete a relationship.
DELETE n — delete a node (errors if it still has relationships!).
DETACH DELETE n — delete the node and its relationships in one shot.

Never MATCH (n) DETACH DELETE n without a label or filter in production.

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