Datomic

Website

datomic.com

Pricing URL

Official Datomic Pricing

$ Details

-

Categories

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

Skytable

Website

skytable.io

Pricing URL

-

$ Details

Categories

#NoSQL Databases #Databases #Realtime Backend #Key-Value Database

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.

Skytable features and specs

• High Performance
  Skytable is designed for high-speed data processing and retrieval, which can be beneficial for applications requiring low-latency data access.
• Flexible Data Models
  Skytable supports multiple data models, which allows developers to choose the best model for their specific use case, providing flexibility in handling various types of data.
• Scalability
  The architecture of Skytable allows it to scale efficiently, which is crucial for applications experiencing rapid growth in data volume and user requests.
• Open Source
  As an open-source project, Skytable allows developers to inspect the code, contribute to its development, and tailor it to their needs without licensing costs.

Possible disadvantages of Skytable

• Early Stage Project
  As Skytable is relatively new compared to established database systems, it may lack some features and has a smaller community for support and troubleshooting.
• Limited Ecosystem
  Being newer, Skytable has a less mature ecosystem with fewer third-party tools, integrations, and extensions than more established databases.
• Documentation
  The documentation, while improving, may not be as comprehensive or detailed as that of more established databases, potentially leading to a steeper learning curve.
• Community Support
  The user community is smaller due to its newness, which might result in slower responses for community-driven support and fewer community-driven resources.

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

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