Fast and efficient graph query is the key to successful application of graph database.

快速有效的图形查询是图形数据库成功应用的关键。

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So unlike other database approaches which only implicitly can form a graph structure a graph database explicitly represents a graph.

所以说，与那些只能间接构成图架构的数据库不同，图形数据库可以明确地表示图。

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Adding a direction to an edge ultimately creates a so-called property graph which represents the explicit structure of data inside a graph database.

为边增加方向最终会创建一个属性图，它代表图形数据库中的明确结构。

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Because graphs are extremely flexible data structures, a graph database can emulate any other kind of database.

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Earlier this week Google introduced us to its Knowledge Graph, a 500 million plus fact-filled database that it has developed from its own research and its acquisition of MetaWeb Technologies.

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