There’s a battle going on right now between all of the public cloud vendors – a war in the clouds. And you might be surprised to hear what they are fighting...
Grakn consists of a database, an abstraction layer and a knowledge graph, which is used to organise complex networks of data and make them queryable.
MarkLogic Server is a multi-model database that can be used to store documents, relational data via tables, rows and columns, and graph data.
Neo4j is a property graph database with a native engine that is targeted at operational, hybrid operational/analytic (HTAP) and pure analytic use cases.