Software Alternatives & Startups

Select Star SQL VS Fly.io

Compare Select Star SQL VS Fly.io and see what are their differences

Select Star SQL

Education & Reference

Rating
0 reviews
Fly.io

Edge computing is the new frontier.

Rating
0 reviews
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Which is more popular?

Based on our record, Fly.io seems to be more popular. It has been mentioned 483 times since March 2021.

social mentions
0 vs 483
Online Education popularity
100% vs 0%
alternatives listed
12 vs 240+

Base details

Website, pricing, platforms and company facts side by side.

SSS
Select Star SQL
Fly.io
Website selectstarsql.com fly.io
Pricing —
Company — Startup from the United States
Listed in

Features and specs

What each product offers, as listed by its team.

SSS
Select Star SQL 5 features
Fly.io 6 features
  • Completely Free
    Select Star SQL is entirely free to use with no paywalls, subscriptions, or hidden costs. This makes it accessible to anyone who wants to learn SQL regardless of their financial situation.
  • Interactive Hands-On Learning
    The platform provides an interactive SQL environment directly in the browser where learners can write and execute real SQL queries against actual datasets, reinforcing concepts through practice rather than passive reading.
  • Real-World Dataset
    The course uses a compelling real-world dataset about Texas death row executions, which makes the learning experience more engaging and meaningful compared to abstract or contrived examples.
  • Well-Structured Progressive Curriculum
    The course is organized in a logical progression from basic SELECT statements to more advanced concepts like aggregations, joins, and subqueries, allowing learners to build knowledge incrementally without feeling overwhelmed.
  • No Setup Required
    There is no need to install any software, set up a database, or configure an environment. Learners can start writing SQL queries immediately in their web browser, removing a significant barrier to entry for beginners.

Possible disadvantages

  • Limited Scope
    The course covers only fundamental SQL concepts and does not address more advanced topics like window functions, CTEs, indexing, database design, or performance optimization, which are essential for professional SQL usage.
  • Single Database Dialect
    The platform teaches SQL using SQLite, and does not cover syntax differences or features specific to other popular database systems like PostgreSQL, MySQL, SQL Server, or Oracle, which learners may encounter in real jobs.
  • No Certificate or Credential
    Completing the course does not provide any formal certificate, badge, or credential that learners could use to demonstrate their SQL skills to potential employers or on professional profiles.
  • Limited Practice Exercises
    While the course includes some exercises, the total number of practice problems is relatively small compared to dedicated SQL practice platforms, which may not be sufficient for learners who need extensive repetition to solidify their skills.
  • Single Dataset Can Feel Restrictive
    Using only one dataset throughout the entire course means learners do not get experience working with diverse data schemas, table relationships, or different types of data, which limits exposure to varied real-world scenarios.
  • Global Deployment
    Fly.io enables developers to deploy applications geographically close to users, reducing latency and improving performance.
  • CLI and Git-based Deployment
    Fly.io offers a command-line interface and Git integration for quick and efficient application deployment.
  • Automatic SSL
    Fly.io provides automatic SSL/TLS certificates, simplifying secure traffic management.
  • Scalability
    Applications deployed on Fly.io can scale both vertically and horizontally to handle varying loads.
  • Built-in Storage
    Fly.io offers persistent storage solutions such as Fly Volumes, which seamlessly integrate with applications.
  • Integrated Monitoring
    Fly.io provides built-in monitoring tools to track application performance and health.

Possible disadvantages

  • Learning Curve
    New users may find the platform's concepts and deployment methods unfamiliar, requiring time to learn.
  • Documentation
    Users have reported that the documentation can sometimes be lacking in detail or difficult to navigate.
  • Cost
    While Fly.io offers a free tier, the cost can become significant as you scale your applications.
  • Limited Language Support
    Fly.io supports fewer runtime environments and languages compared to more established platforms like AWS or Azure.
  • Platform Maturity
    As a relatively new platform, Fly.io may lack some advanced features and ecosystem integrations offered by more mature competitors.
  • Debugging
    The debugging tools and processes can be less comprehensive compared to traditional cloud providers.

Analysis

An editorial look at what each product does well and who it suits.

SSS
Select Star SQL
Fly.io

Overall verdict

  • Select Star SQL is an excellent free, interactive online book for learning SQL, praised for its engaging, hands-on approach that lets you write and run queries directly in the browser while working through a compelling real-world dataset.

Why this product is good

  • It's completely free and accessible online with no signup required
  • Features an interactive interface where you can write and execute SQL queries directly in the browser
  • Uses a compelling, thought-provoking dataset (Texas death row executions) that keeps learners engaged
  • Teaches SQL through active problem-solving rather than passive reading
  • Progresses logically from basic concepts to more advanced topics like window functions and self-joins
  • Includes exercises with solutions to reinforce learning
  • Well-written and clearly explained, making complex concepts approachable for beginners

Recommended for

  • Complete beginners who want to learn SQL from scratch
  • Self-taught learners who prefer hands-on, interactive practice
  • Students and professionals looking to build a solid foundation in querying databases
  • Aspiring data analysts and data scientists
  • Anyone wanting a free alternative to paid SQL courses
  • People who learn best by doing rather than just reading theory

Overall verdict

  • Fly.io is a strong choice for developers looking to enhance application performance through global deployment without the complexities often associated with managing multiple infrastructure locations. Its ease of use and robust features make it a competitive option in the edge computing space.

Why this product is good

  • Fly.io is known for its edge computing solutions that allow developers to deploy applications closer to users, resulting in reduced latency and improved performance. It supports a wide range of programming languages and frameworks, and offers a straightforward platform for deploying full-stack applications globally. Fly.io's pay-as-you-go pricing model can also be cost-effective for projects of various sizes.

Recommended for

  • Developers looking to deploy applications globally with minimal latency.
  • Teams needing a scalable and flexible infrastructure that can grow with their needs.
  • Projects that benefit from a serverless approach without sacrificing control over the code and environment.
  • Applications that require rapid deployment and ease of management.

Videos

Walkthroughs and reviews on video.

SSS
Select Star SQL 0 videos + Add
Fly.io 1 video + Add

No Select Star SQL videos yet. You could help us improve this page by suggesting one.

We FLY a SPACESHIP! Video Game FLY.io Computer App with HobbyKidsTV

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
SSS
Select Star SQL
Fly.io
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

SSS
Select Star SQL no reviews yet
Fly.io no reviews yet

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

SSS
Select Star SQL 0 mentions
Fly.io 483 mentions

Tracking Select Star SQL since May 2026.

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