Imagine a product with the flexibility of a Document Database and the ability to express relationships like a Graph Database. This is OrientDB.
OrientDB supports SQL with some extensions to manipulate trees and graphs. Your Relational DBMS skills are safe! Read more about OrientDB SQL.
Eventual Consistency is cool, but many times you need full ACID Transactions. With OrientDB, ACID Transactions are distributed across servers.
Span your database across multiple servers. OrientDB supports state of the art Multi-Master Replication on distributed systems. Nodes can be added without complex configuration. This is perfect in the Cloud.
Companies who chose OrientDB