Datomic

Website

datomic.com

Pricing URL

Official Datomic Pricing

$ Details

-

Categories

#Databases #Relational Databases #NoSQL Databases #Network & Admin

EdgeDB

Website

edgedb.com

Pricing URL

-

$ Details

Categories

#Network & Admin #Databases #NoSQL Databases #Relational Databases

Datomic features and specs

• 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.

Possible disadvantages of Datomic

• Complexity
  The architecture of Datomic can be complex to understand and implement, particularly for teams unfamiliar with its design principles.
• Cost
  Can be expensive to operate, especially in a cloud environment, where costs increase with the amount of data stored and the compute resources required.
• Limited Write Throughput
  Due to its append-only design, Datomic can have limited write throughput, which may not be suitable for applications with heavy write requirements.
• Closed Source
  Datomic is a proprietary database system, which may not appeal to organizations that prefer open-source solutions.
• Learning Curve
  Requires a learning curve as its conceptual model and query language are different from traditional databases, potentially requiring additional training.
• Dependency on AWS
  Relying on AWS ecosystem for the storage backend can limit choices for deployment environments, impacting flexibility.

EdgeDB features and specs

• Graph-Relational Model
  EdgeDB combines the features of relational and graph databases, allowing for complex queries and relationships while maintaining data integrity typical in relational databases.
• Advanced Query Language (EdgeQL)
  EdgeQL offers a more intuitive and expressive query syntax compared to traditional SQL, facilitating easier and more efficient data retrieval.
• Schema Evolution
  EdgeDB provides robust tools for schema migrations and versioning, making it easier to evolve the database schema without downtime or data loss.
• Type Safety
  With its strong typing system, EdgeDB reduces runtime errors by ensuring data type consistency across the database operations.
• Integrated Indexing and Constraints
  EdgeDB supports advanced indexing and constraints, improving query performance and maintaining data integrity natively.

Possible disadvantages of EdgeDB

• Relative Newness
  Being relatively new in the market, EdgeDB might lack extensive community support and third-party integrations compared to more established databases.
• Learning Curve
  Technicians accustomed to traditional SQL or other database paradigms might face a learning curve when adapting to EdgeDB's unique features and query language.
• Limited Ecosystem
  EdgeDB's ecosystem, including tooling, documentation, and community resources, is less mature compared to other well-established database systems.
• Potential for Rapid Changes
  As a developing technology, EdgeDB may undergo rapid changes and updates, which may lead to instability or additional maintenance overhead.
• Hosting and Compatibility Concerns
  Deploying EdgeDB might have specific hosting requirements, and compatibility with existing infrastructure could be a concern for some users.

KotlinConf 2018 - Datomic: The Most Innovative DB You've Never Heard Of by August Lilleaas

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Checking out EdgeDB - The Developer Database (Better than Prisma ORM?!)

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