SQLBeginner
Intro to SQL: Querying and Managing Data
Khan Academy's interactive SQL course. Learn to create tables, insert data, query with SELECT, filter with WHERE, join tables, and aggregate with GROUP BY.
Free course on Kaggle Learn
Intro to SQL (Kaggle Learn)
3 hours 4.7(38,000 reviews)Free
Kaggle Learn's Intro to SQL course is a free, hands-on introduction to SQL covering SELECT, WHERE, filtering, aggregation, and joining tables. All lessons run in Kaggle notebooks against real databases, so you write SQL from day one. After finishing, you can query databases and understand relational data. The course is practical and doesn't assume SQL knowledge. The main limitation: SQL is much bigger (window functions, CTEs, optimization), but this teaches the essentials. For deeper SQL, take CS50's SQL course or books like "SQL Performance Explained".
SQL is one of the most-used languages among professional developers year after year, ranking third in 2025 behind only JavaScript and HTML/CSS (source: Stack Overflow Developer Survey 2025, survey.stackoverflow.co/2025/technology).
About This Course
Kaggle Learn's 3-hour SQL micro-course using BigQuery. Covers SELECT, WHERE, GROUP BY, ORDER BY, JOINs, and writing efficient queries over large datasets. Notebook-based and free.
Course Details
- Platform
- Kaggle Learn
- Language
- SQL
- Level
- beginner
- Duration
- 3h
- Certificate
- Yes, included
- Cost
- Free
Frequently Asked Questions
Is Kaggle's SQL course free?
Yes, completely free.
How long does it take?
About 3-4 hours of lessons. Most people finish in 1-2 weeks.
What database does it teach?
BigQuery, Google's data warehouse. The SQL you learn transfers to MySQL, PostgreSQL, etc.
After this, what database should I use?
Depends on your goal. PostgreSQL for web apps, BigQuery for data analysis, SQLite for learning.
Is this enough for data analysis work?
It's a foundation. Real data work also needs Python (pandas), visualization, and statistics.
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