DEV Community: Viktorija

How to Learn SQL for Data Analysis in 2026: A Free Learning Path

Viktorija — Sat, 06 Dec 2025 09:01:37 +0000

Here's a structured learning path with entirely free resources, organized by skill level.

Foundation

Kaggle: Intro to SQL - kaggle.com/learn/intro-to-sql

Free interactive course using real-world datasets. Perfect for data analysts, teaches SQL fundamentals through hands-on exercises with actual data.

ThoughtSpot (formerly Mode Analytics): SQL Tutorial - thoughtspot.com/sql-tutorial/introduction-to-sql

Interactive tutorial, one of the best free resources. Teaches to answer typical data analysis questions using a real-world dataset.

Skillup: SQL for Data Analysis - simplilearn.com/free-sql-for-data-analysis-course-skillup

A bit too "light", but provides structured video format if you prefer lectures over interactive tutorials. Optional - only if you need more structure.

Building Practical Skills

DataLemur: SQL Tutorial for Data Scientists & Data Analysts - datalemur.com/sql-tutorial

Great modern "textbook" for analysts that teaches business logic.

Luke Barousse: SQL for Data Analytics - Learn SQL in 4 Hours - youtube.com/watch?v=7mz73uXD9DA

Released in 2024, it's a video that teaches SQL needed for reporting and dashboards, skipping SQL for software engineers.

Real-World Application

Udacity: SQL for Data Analysis - udacity.com/course/sql-for-data-analysis--ud198

Hidden gem, focuses on data cleaning and aggregation which is 80% of data analyst's actual job.

Alex The Analyst: Data Analyst Portfolio Projects - youtube.com/playlist?list=PLUaB-1hjhk8H48Pj32z4GZgGWyylqv85f

Created in 2021, uses a raw dataset and shows how to explore it.

Comprehensive Mastery

Skillup: SQL for Data Science (2-hour version) - simplilearn.com/sql-for-data-science-free-course-skillup

Despite saying "Data science", it's actually a pure data analysis course. (Choose 2-hour version, not 1-hour "Data Analysis" one.)

Alex The Analyst: Data Analyst Bootcamp - youtube.com/playlist?list=PLUaB-1hjhk8FE_XZ87vPPSfHqb6OcM0cF

Comprehensive bootcamp covering the full data analyst skill set.

Udemy: SQL for Real-World Data Analysis - udemy.com/course/sql-for-real-world-data-analysis

Comprehensive course focused on practical, real-world scenarios.

Foundational Knowledge (Reference, not sequential)

Udacity: Intro to Relational Databases - udacity.com/course/intro-to-relational-databases--ud197

Not for data analysis specifically, but provides deep understanding of how databases work. Useful reference.

For a complete curated list of free SQL resources including courses for beginners, interactive games, and more, check out the GitHub repository: github.com/zezere/best-resources-to-learn-sql. The list is organized by learning path and updated regularly.

Free SQL courses for beginners in 2026

Viktorija — Mon, 01 Dec 2025 14:31:47 +0000

New courses get created, older courses get monetized, so here's the up-to-date list you need in 2026 to learn SQL as a beginner - entirely FREE (at the moment of posting this).

Newest & Trending

freeCodeCamp - Relational Databases Certification - Significantly refreshed in 2025, interactive command-line based learning, the most "hands-on" developer experience.

Data with Baraa - YouTube playlists:

Newest one (2025)
These are a bit older but also new: one and another - New and trending extensive YouTube playlists of long-form videos, as a free version of Baraa's content on his website.

Udemy - free SQL courses (only those entirely free, rating above 4 stars)

Newest (created in 2025): SQL basics for beginners, Hands-on introduction to SQL with PostgreSQL, Free SQL course for beginners
Up to 5 years old: Learn SQL / MySQL database basics, EssentialSQL: Get Started Learning SQL, Beginner's Introduction to SQL and Databases, Beginners Introduction to SQL and Database Part II, Fundamentals of SQL, SQL Beginner's Level Course, SQL for beginners - Microsoft SQL Server - Collection of self-paced video courses covering various SQL dialects (MySQL, PostgreSQL, SQL Server), offering flexibility and multiple teaching styles, though quality and depth vary significantly between instructors and some courses may lack comprehensive coverage.

Skillup - SQL course (Free for 90 days, completion certificate) - Structured online course with video lectures and hands-on exercises, offering a completion certificate and professional format similar to paid courses, though the 90-day access limit requires focused learning and may not suit those preferring self-paced long-term study.

Approved & Still New

roadmap.sh - interactive course - AI-powered interactive chat-based learning experience that adapts to your pace and questions, offering a modern conversational approach to SQL fundamentals, though it may lack the depth and structured progression of traditional courses.

Harvard University - CS50's Introduction to Databases with SQL (Closes on 31st Dec 2025) - Academic-quality course with video lectures, problem sets, and projects following Harvard's CS50 teaching style, offering rigorous database design and SQL fundamentals, though it requires significant time commitment and closes enrollment at the end of 2025.

Alex The Analyst - YouTube video "Learn SQL Beginner to Advanced in Under 4 Hours" - Condensed single-video format covering SQL fundamentals to advanced topics in under 4 hours, ideal for quick overview or review, though the fast pace may be overwhelming for complete beginners and lacks hands-on practice opportunities.

Coursera:

Academic courses with video lectures and assignments covering SQL syntax, database design, and data analysis techniques, offering structured university-level content with flexible scheduling, though certificates and graded assignments require payment (all course materials are free in audit mode).

Old but Gold

Khan Academy - Intro to SQL Web version and a YouTube playlist - Free interactive web-based lessons with embedded challenges and auto-feedback, offering a beginner-friendly introduction to SQL basics with immediate practice, though it focuses on fundamentals and may not cover advanced topics or real-world database systems.

SQLBolt - Introduction to SQL - Browser-based interactive tutorial with progressive lessons and immediate practice exercises, offering a quick and practical way to learn SQL fundamentals directly in your browser without setup, though it lacks formal certification and may not cover advanced database administration topics.

Special mentions

Bro Code - YouTube playlist, viral in 2024 - Popular YouTube playlist format with step-by-step video tutorials covering SQL basics, offering an accessible and free learning path that gained viral popularity in 2023, though it may lack structured progression and hands-on projects compared to formal courses.

SQLZoo - Interactive SQL Tutorial - Free interactive tutorial with progressive exercises using real-world statistics and Nobel Prize data, offering a systematic approach that has been a gold standard for over two decades, though the interface may feel dated compared to modern platforms.

W3Schools - SQL Tutorial - Free comprehensive reference and tutorial with live code sandboxes, offering a dependable resource for quick lookups and learning SQL syntax, though it functions more as a reference guide than a structured course with progression.

Level Up Your SQL Skills: 8 Interactive Games That Make Learning Fun

Viktorija — Thu, 27 Nov 2025 10:56:31 +0000

Tired of dry SQL tutorials and boring exercises? What if you could learn SQL by solving crimes, surviving disasters, or cracking mysteries?

Game-based learning has exploded in popularity for a good reason!
Let's dive into the best SQL games and interactive tutorials that turn learning into an adventure.

🆕 The Newest Entries (2025)

SQL Case Files

🔗 Play Now | GitHub

I bet you didn't know about this one! It's fresh out of the oven, and it has a GitHub repo too.

This free interactive SQL game teaches you SQL through crime-solving challenges. You'll work with hands-on puzzles, realistic datasets, and practice exercises, all powered by a full browser-based SQLite database.

Why it's great: No setup required, runs entirely in your browser, and the AI assistant helps you when you're stuck.

SQL Noir

🔗 Play Now | GitHub

New, hot, and trending! This vintage detective game is stylish and has a GitHub repo as well!

SQL Noir has quickly become a premier resource for narrative-driven SQL practice. Unlike other games that treat narrative as a superficial wrapper, SQL Noir integrates the database schema directly into the storytelling mechanism.

What makes it special:

You play as a detective where clues aren't given, you must extract them from the database
Teaches complex filtering, text search, and multi-table investigations
Highly praised for engagement and realistic problem scoping
Open-source platform (community-driven updates)
Aligned with modern PostgreSQL standards

SQL Squid Game

🔗 Play Now

High-stakes game where you're a data analyst answering business questions under pressure!

Inspired by Netflix's Squid Game, SQL Murder Mystery, and other SQL games, this educational game puts you in high-pressure scenarios. Perfect for interview prep and learning to think quickly under constraints.

🏆 The Classics That Still Shine

SQL Murder Mystery

🔗 Play Now

The foundational classic for rapid and straightforward introduction to SQL joins.

This city crime solver teaches joins, wildcards, schemas, and exploration. It remains highly relevant for its straightforward approach to teaching intermediate concepts like wildcards and self-joins. Think of it as an excellent precursor to the more complex scenarios found in SQL Noir.

Best for: Rapid introduction to join logic and intermediate SQL concepts.

Lost at SQL

🔗 Play Now

Survival game with a unique flavor! Teaches data modifications, integrity, and system repair.

Most SQL games focus on SELECT queries, but Lost at SQL is different. You're aboard a sinking submarine, and SQL commands are framed as system repairs — using UPDATE and DELETE commands to fix the vessel's navigational and life-support databases.

Why it's valuable:

Introduces Data Manipulation Language (DML) concepts
Teaches UPDATE and DELETE operations
Covers data integrity and system repair
Fills a gap left by read-only detective games

Note: Some users find the interface restrictive compared to modern IDEs, and it occasionally struggles with column naming conventions (e.g., weight vs weight_kg). But it's still excellent for learning DML concepts.

SQL Island

🔗 Play Now

This one's special! Beginner-friendly game with a clear progression system.

You crash-land on an island and need SQL to survive. Query the database to get food, find a job, and progress through the adventure. The clear progression system makes it perfect for absolute beginners who need structure.

Best for: Complete beginners who want a guided, game-like experience.

SQL Zoo

🔗 Learn Now

Less of a game, but still the gold standard for fundamental and advanced topics.

This isn't a game per se, but it's been the gold standard of interactive SQL learning for over two decades. It uses real-world statistics and Nobel Prize data, with quizzes and challenges that cover everything from fundamentals to advanced topics.

Why developers love it:

Systematic approach
Comprehensive coverage
Real-world data (Nobel prizes, world statistics)
Essential resource for mastering both basics and advanced SQL

SQL Police Department

🔗 Play Now (Free tier available)

Structured case file analysis perfect for total novices.

This mission-based game teaches aggregations, pattern matching, and reporting. It's the structured middle ground—lacking the open-ended freedom of SQL Murder Mystery but providing a highly guided experience that's perfect for absolute beginners who might feel overwhelmed by a blank query editor.

Best for: Total novices who need hand-holding through structured progression.

🎯 Which Game Should You Start With?

Complete beginner? Start with SQL Island or SQL Police Department for guided progression.

Know the basics? Jump into SQL Murder Mystery to master joins and intermediate concepts.

Ready for a challenge? Try SQL Noir or SQL Case Files for complex, realistic scenarios.

Interview prep? SQL Squid Game and SQL Case Files simulate high-pressure situations.

Want comprehensive coverage? SQL Zoo is your go-to for systematic learning.

🚀 Start Playing Today

The best part about these games? They're all free (or have generous free tiers) and run in your browser. No setup, no installation, just open a tab and start learning.

Have you tried any of these games? Which one helped you level up your SQL skills? Share your experience in the comments below!