SQL Basics Course
4.9/5
This course provides hands-on training in essential SQL skills for querying relational databases, covering SELECT statements, joins, aggregations, and best practices for writing efficient, portable code across major database systems.

4.9 rating
4 to 360 hours flexible workload
valid certificate in your country
What will I learn?
The SQL Basics Course gives you practical skills to query real relational databases fast. You will learn SELECT fundamentals, filtering, sorting, and pagination, then move into joins across multiple tables, keys, and data types. Practice core analytics patterns with aggregates, GROUP BY, and HAVING, and finish with best practices for clear, portable, and debuggable SQL across popular database systems.
Elevify advantages
Develop skills
- Master SELECT queries: pull precise data fast from any relational database.
- Filter, sort, and paginate results: build clean, production-ready SQL reports.
- Join multiple tables: combine user, course, and enrollment data with confidence.
- Aggregate data with GROUP BY: compute KPIs and analytics in a few clear queries.
- Write portable, debuggable SQL: clean style that runs on MySQL, Postgres, SQLite.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
Your classes are perfect. I got the one-year package and finally have the chance to follow a range of topics I'm interested in without having to switch platforms... thank you for everything you do, I've already recommended you to others...

Giulio CarloDigital Marketing Student
I like how the lessons get straight to the point and how I can switch chapters and skip content I don't need.

Mariana FerresPhotography Student
I like the content and the way the videos are presented and transcribed, which speeds up the process!

Luciana AlvarengaNail Design Student
The platform is fast and easy to use. The variety of content and the extra videos really help with learning.

Giulio CarloPrompt Engineering Student
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