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PostgreSQL Exercises VS StrataScratch

Compare PostgreSQL Exercises VS StrataScratch and see what are their differences

PostgreSQL Exercises

Education & Reference

Rating
0 reviews
Alternatives Is it good?
StrataScratch

StrataScratch is a data science interview platform that has over 1000+ real interview questions from top tech companies like Facebook, Amazon, Google, and more.

Rating
0 reviews
Alternatives Is it good?
ScholarSail
AI study tools that generate mindmaps, spaced-repetition flashcards, and 3D memory palaces from your notes. Built-in rich text editor, Pomodoro timer, and colored noise. sponsored

Which is more popular?

Based on our record, StrataScratch should be more popular than PostgreSQL Exercises. It has been mentioned 4 times since March 2021.

social mentions
1 vs 4
Online Education popularity
100% vs 0%
alternatives listed
9 vs 30

Base details

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

PostgreSQL Exercises
StrataScratch
Website pgexercises.com stratascratch.com
Pricing —
Official pricing
Listed in
Online Learning Online Education Online Courses Data Management +1
Data Science Coding Online Learning Interview Preparation +1

Features and specs

What each product offers, as listed by its team.

PostgreSQL Exercises 5 features
StrataScratch 0 features
  • Free and accessible
    PostgreSQL Exercises is completely free to use with no registration required, making it highly accessible to anyone who wants to practice SQL skills without any financial barrier.
  • Interactive practice environment
    The site provides a built-in SQL query editor where users can write and execute queries directly in the browser against a real database, getting immediate feedback on their results.
  • Progressive difficulty
    Exercises are well-organized into categories (basic, joins, aggregation, date, string, recursive) and progress from simple to complex, allowing learners to build their skills incrementally.
  • Realistic dataset
    The site uses a realistic country club management scenario with interconnected tables, giving learners practice with a coherent and relatable data model rather than abstract or disconnected examples.
  • Detailed solutions and explanations
    Each exercise comes with a detailed expected result set and a thorough explanation of the solution, helping learners understand not just what the answer is but why it works.

Possible disadvantages

  • Limited dataset scope
    The entire site relies on a single small dataset (a country club with members, facilities, and bookings), which limits exposure to diverse data modeling patterns and real-world complexity.
  • No user progress tracking
    Since there is no account system or registration, the site does not track user progress, making it difficult for learners to pick up where they left off or monitor their improvement over time.
  • PostgreSQL-specific syntax
    The exercises focus specifically on PostgreSQL syntax and features, which may not directly translate to other database systems like MySQL, SQL Server, or Oracle, potentially limiting transferability of learned skills.
  • Outdated design and interface
    The website has a dated visual design and user interface that lacks modern UX features such as syntax highlighting, auto-completion, or responsive mobile support, making it less pleasant to use compared to newer platforms.
  • Limited number of exercises
    The total number of exercises is relatively small compared to other competitive programming or SQL practice platforms, meaning advanced users may quickly exhaust the available problems.

No features have been listed yet.

Analysis

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

PostgreSQL Exercises
StrataScratch

Overall verdict

  • PostgreSQL Exercises (pgexercises.com) is an excellent free resource for learning and practicing SQL through hands-on, interactive problems with immediate feedback, making it a valuable tool for anyone looking to sharpen their PostgreSQL skills.

Why this product is good

  • It offers a structured progression of exercises, from basic queries to advanced topics like aggregation, joins, string operations, recursive queries, and date manipulation
  • Each exercise runs against a realistic sample database (a fictional country club), giving practical context to the problems
  • It provides instant feedback and detailed explanations of solutions, reinforcing learning
  • The platform is completely free and requires no signup, so you can start practicing immediately
  • It focuses specifically on PostgreSQL, so you learn Postgres-specific syntax and features rather than generic SQL

Recommended for

  • Beginners who want to learn SQL fundamentals in a hands-on way
  • Developers and analysts who want to strengthen their PostgreSQL query skills
  • People preparing for technical interviews that involve SQL
  • Students supplementing coursework with practical exercises
  • Anyone transitioning to PostgreSQL from another database system

Overall verdict

  • StrataScratch is a solid, well-regarded platform for practicing real-world data science and SQL interview questions, offering a large question bank sourced from actual company interviews.

Why this product is good

  • Large library of real interview questions from companies like Amazon, Google, Meta, and Netflix
  • Strong focus on SQL and Python coding challenges relevant to data science and analytics roles
  • Provides detailed solutions, explanations, and community discussions to aid learning
  • In-browser coding environment lets you test queries and code without local setup
  • Questions are categorized by difficulty and topic, making structured practice easier
  • More affordable than many bootcamps or specialized interview prep courses

Recommended for

  • Aspiring data scientists and data analysts preparing for job interviews
  • Professionals looking to sharpen their SQL and Python data-manipulation skills
  • Job seekers targeting FAANG and other tech companies' data roles
  • Students and self-learners who want hands-on, practical problem sets
  • Anyone wanting to practice with real company interview questions rather than abstract exercises

Videos

Walkthroughs and reviews on video.

PostgreSQL Exercises 0 videos + Add
StrataScratch 2 videos + Add

No PostgreSQL Exercises videos yet. You could help us improve this page by suggesting one.

Practice Writing SQL Queries on StrataScratch | How to Solve SQL Queries

More videos

  • - Amazon SQL Interview Question for Data Scientists and Data Analysts (StrataScratch 10322)

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
PostgreSQL Exercises
StrataScratch
100% 100%
Online Education
0% 0%
0% 0%
Interview Preparation
100% 100%
100% 100%
Online Courses
0% 0%
56% 56%
Online Learning
44% 44%

User comments

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Reviews and articles

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

PostgreSQL Exercises no reviews yet
StrataScratch no reviews yet

We have no reviews of PostgreSQL Exercises yet. Be the first one to post

Social recommendations and mentions

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

PostgreSQL Exercises 1 mention
StrataScratch 4 mentions
  • Best one-stop-shop for SQL for data analysis / science?
    StrataScratch is focused on providing data analysis/science resources needed to land a job and resources for the first few years of your career. It has 600+ coding questions from real interviews where you can use SQL, python, or R. It... Source: over 3 years ago
  • Recommendations for Learning SQL
    I learned off of Mode Analytics SQL tutorial. It's free and I use it as a reference when I forget syntax. From there, my learning style is to grind on practical questions that I would get as a data analyst. So I would recommend... Source: over 3 years ago
  • How do i practice SQL to be real world ready?
    There was a comment here about using Leetcode, Hackerrank, SQL fiddle, etc to keep learning SQL. However, if you're aim is to go into data analytics you need to go beyond learning syntax and understand edge cases and business context.... Source: over 3 years ago

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Alternatives to PostgreSQL Exercises and StrataScratch

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