Establishing an undirected relationship between two entities is done via the Relationship class. ... If a cardinality constrain is violated by existing data a CardinalityViolation exception is raised. ... between two node instances and this is achieved via use of CREATE UNIQUE . ... https://secure.travis-ci.org/neo4j-contrib/ ...
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neo4j-create-relationship-between-two-existing-nodes
3925e8d270
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