How to delete/create databases in Neo4j?

Question

Is it possible to create/delete different databases in the graph database Neo4j like in MySQL? Or, at least, how to delete all nodes and relationships of an existing graph t

Answer 1

In Neo4j 2.0.0 the ? is no longer supported. Use OPTIONAL MATCH instead:

START n=node(*)
OPTIONAL MATCH (n)-[r]-()
delete n,r;