Datomic

Website

datomic.com

Pricing URL

Official Datomic Pricing

$ Details

-

Categories

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

PlanetScale

Website

planetscale.com

Pricing URL

Official PlanetScale Pricing

$ Details

freemium $29.0 / Monthly (250GB)

Categories

#Vitess #Databases #Relational Databases #Cloud Storage #APIs #DevOps Tools #MySQL Tools #MySQL GUI

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.

PlanetScale features and specs

• Scalability
  PlanetScale is designed for massive scale, leveraging the Vitess engine that powers YouTube. This makes it suitable for applications requiring high scalability for both read and write operations.
• Global Distribution
  Offers multi-region deployment, ensuring low-latency access and higher availability, beneficial for globally distributed applications.
• Serverless Approach
  The platform takes a serverless approach to database management, which means automatic scaling, less infrastructure to manage, and potential cost savings.
• Branching and Sharding
  Supports database branching for isolated environments like development, testing, and production. It also supports sharding, which helps in distributing data across multiple nodes for better performance and reliability.
• High Availability
  PlanetScale provides high availability with automated failover mechanisms, ensuring minimal downtime.
• Strong Data Integrity
  Uses Vitess’s strong consistency models to ensure data integrity across distributed systems.
• Developer Friendly
  Includes tools and features that make it easier for developers to manage, such as automatic migrations and simplified schema management.
• Integration
  Can be easily integrated with various cloud service providers, making it flexible for different deployment environments.

Possible disadvantages of PlanetScale

• Learning Curve
  The platform comes with a learning curve, especially for teams unfamiliar with Vitess or managing distributed databases.
• Cost
  While it can offer cost savings in some areas, the pricing for large-scale deployments and multi-region setups can be relatively high.
• Complexity of Advanced Features
  Advanced features like sharding and branching can add complexity to the database management operations.
• Limited Ecosystem
  Compared to more established databases, the ecosystem and community around PlanetScale might be smaller, which can affect the availability of third-party tools and community support.
• Vendor Lock-in
  Using a proprietary platform can lead to vendor lock-in, making it harder to switch to other database services if needed.
• Early-stage Platform
  While promising, PlanetScale is relatively new compared to some other established database services, which means it may lack some maturity or have bugs that older platforms have ironed out.

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

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PlanetScale Beta - Release Radar

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