lp/clj/datomic

Introduction to Datomic

Datomic is a new database with a flexible schema that keeps a history of all changes, allows you to assign arbitrary attributes to entities and considers the database to be a value.

More buzzwords: ACID transactions, client-side query, elastic scaling, pluggable storage, datalog for queries.

It's similar to git, in that it doesn't forget, but that's more or less where the similarities end: Datomic has a linear history and cares about entities with attributes, not about changes/arbitrary contents.

Examples

• Day of Datomic: Code from a workshop from the creators of Datomic.
• Music Brainz example

Resources

• Learn Datalog Today!
• The Architecture of Datomic describes the overall architecture of Datomic, with some details about the design and benefits of Datomic.
• Videos about Datomic, the "Tutorial Screencasts" section is a good place to start with Datomic basics.
• Datomic Documentation
• Data modelling in Datomic: How does Datomic differ from relational databases and what advantages does it offer. (You can change the schema and permanently delete old values now, though.)