Datomic
The fully transactional, cloud-ready, distributed database
Datomic is a distributed database built for developers who need an append-only data model, strong consistency, and fully ACID-compliant transactions. It stands out for its time travel queries, which let you query the database as of any point in time for auditing and debugging, alongside a rich data model supporting maps and sets directly in the schema. Its separation of storage and compute also allows for horizontal scaling of read operations.
However, you will need to check their configuration and pricing documentation directly, as exact pricing details are not provided in the source facts. Furthermore, its platform availability is limited to Web, which may impact teams looking for broader native client support.
Features
Immutability
Datomic employs an append-only data model where data is never overwritten but instead appended, ensuring historical data is always available and providing strong consistency.
Time Travel Queries
Datomic allows you to query the database as of any point in time, facilitating auditing and debugging by allowing easy access to historical data states.
Rich Data Model
Supports complex data types like maps and sets directly within its schema, providing a flexible way to represent data.
ACID Transactions
Datomic supports fully ACID-compliant transactions, ensuring reliable and predictable database operations.
Scalability
Separates storage and compute, allowing for horizontal scaling of read operations, making it suitable for handling large datasets.
Query Flexibility
Offers a powerful query language that supports recursive queries, making it suitable for complex data retrieval needs.
Screenshots
Datomic vs. its alternatives
| Datomic |  MongoDB |  MySQL |  Oracle TimesTen |  Matisse | |
|---|---|---|---|---|---|
| Pricing | — | — | — | — | — |
| Platforms | — | — | |||
| Listed features | 6 | — | — | 6 | 4 |
Frequently asked questions
How much does Datomic cost?
Exact pricing details are not listed in the facts, so you should check their official configuration and pricing page for current plans.
What is Datomic used for?
Datomic is used as a fully transactional, cloud-ready, distributed database for handling complex data retrieval needs, historical data auditing, and large datasets.
What platforms does Datomic run on?
Datomic is available on the Web platform.
How do Time Travel Queries work in Datomic?
Time Travel Queries allow you to query the database as of any point in time, which facilitates easy access to historical data states for auditing and debugging.
What does Datomic's Immutability feature do?
Immutability uses an append-only data model where data is never overwritten but appended, ensuring historical data availability and strong consistency.
What are the best alternatives to Datomic?
Top alternatives to Datomic include MongoDB, MySQL, and Oracle TimesTen. You might prefer one of these traditional databases depending on your specific infrastructure and scaling requirements.
Alternatives to Datomic
Read the full comparison →
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