Neo4j Cypher must all nodes have relation to root -


i totally new on graph databases , neo4j. study have implement friend structures relational , graph databases. finished relational database , hang on neo4j because find hard beginners. quick question: must (or graph style) have nodes relation root node? must implement search friends of friend, relations between user not friends , on. using webadmin/neoclipse , neo4j 1.9.2.

thank you.

the short answer nope, can ignore root node, or in fact event delete it. there no restrictions on node connectivities; 1 thing enforced, though, each relationship must have start , end node @ times (can same node).


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