The versatile Mutli-Model NoSQL.
OrientDB has the flexibility of the Document databases and the power of the Graph Databases to manage relationships. It can work in a schema-less mode, schema-full or a mixture of both.
OrientDB is a java based opensource document/graph database [http://www.orientdb.org/] which is quite flexible. It has schema-less or schema-full support, graph traversals, gremlin suppirt, master-master replication and other features. Hypernodes and hyperedges may be created in Orient through linkset types.
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