Building Web Applications with Python and Neo4j

Transforming nodes and relationships

In this section, we will discuss updating labels, properties, and relationships.

Updating node properties

The properties of a node are modified by using the following Cypher statement:

MATCH (f:FEMALE {name: "Sheena"})
SET f.surname = "Foster"
return f;

The preceding statement will find the node Sheena and will add or update (if it already exists) the property surname with a new or modified value. For removing the property, just replace the SET statement in the preceding Cypher query with SET f.surname = NULL. We can also set multiple properties by separating them with a comma.

The REMOVE statement is another construct provided by Cypher for removing the properties of a node. For example, we can also execute the ...