Open Source Nosql Database

In a directed graph, the perimeters connecting two totally different nodes have different meanings, depending on their path. Edges are the important thing concept in graph databases, representing an abstraction that is not directly implemented in a relational model or a document-store mannequin. In computing, a graph database is a database that uses graph structures for semantic queries with nodes, edges, and properties to represent and retailer information. The graph relates the info items within the store to a group of nodes and edges, the edges representing the relationships between the nodes.

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