The Document-Graph database supports SQL and Native Queries, asynchronous commands, intents, and much more.
Free • Open Source
What is Orient DB?
The Document-Graph database, SQL and Native Queries, asynchronous commands, intents, and much more.
OrientDB is "fast" ( storing 220,000 records per second on common hardware ). It supports : - schema-less, - schema-full and - schema-mixed modes and - includes SQL among its query languages along with a custom SQL based language which reduces the learning curve for those new to OrientDB.