SQL
Query any database with confidence.
Practice SQL on real datasets from the very first task. Filters, joins, aggregations — everything a data job actually uses, learned by doing.
11
Lessons
105
Practice tasks
Beginner-friendly
Level
~5 weeks
Duration
Included
Certificate
Learning roadmap
A guided path from your first task to a portfolio-ready project.
SELECT fundamentals
3 lessons- Your first queries
- Filtering with WHERE
- Sorting & limiting results
Filtering & functions
3 lessons- Text & date functions
- NULL handling
- CASE statements
Joins & aggregations
3 lessons- INNER, LEFT, RIGHT joins
- GROUP BY & HAVING
- Window functions intro
Analytics project
2 lessons- Real business questions
- Capstone: full analysis
What do students say of us?
4.7★average rating · 98,300 students enrolled
“I use SQL daily now. The practice tasks mirror real work so well that my onboarding was trivial.”
Olivia P.
Operations Analyst
“105 tasks sounds like a lot — until you realize each one takes 2 minutes and teaches you one thing.”
Karim D.
Aspiring Data Analyst
“I stopped waiting for the data team. I pull my own numbers now, and it changed how I run my roadmap.”
Rachel G.
Product Manager
Choose your plan
Unlimited access to every course, 500+ practice tasks and your personal AI mentor.
Yearly
$8.25/month · billed upfront
- Unlimited course access
- 500+ practice tasks
- Personal AI mentor
- Resume & LinkedIn review
- Interview prep
- Career track guidance
Frequently asked questions
Kodree is a beginner-friendly learning platform where you master in-demand skills with 80% practice. No endless video tutorials — you learn by doing from the very first lesson, with instant feedback on every task.