I have always thought Datomic was interesting. Datomic Cloudis even more interesting. Datomic Cloud is even more interesting on Amazon Web Services.
See this Introduction to Datomic video.
Here is a list of reasons why I find Datomic so interesting:
- Datomic is a fact database, organized similar to EAV (entity, attribute, value) or RDF.
- Datomic has an integrated rules engine, datalog. See this video.
- You can never delete facts from the database. You can mark them deleted, but you cannot make facts go away. That means excellent audit trail.
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