SQL Basics Course
This course teaches foundational SQL skills for querying relational databases, covering SELECT statements, filtering, sorting, joins, aggregation, and best practices for writing efficient, portable SQL code.

4 to 360h flexible workload
certificate valid in your country
What will I learn?
The SQL Basics Course provides you with practical skills to query real relational databases quickly. You will learn SELECT fundamentals, filtering, sorting, and pagination, then advance to joins across multiple tables, keys, and data types. Practice core analytics patterns with aggregates, GROUP BY, and HAVING, and conclude with best practices for clear, portable, and debuggable SQL across popular database systems.
Elevify advantages
Develop skills
- Master SELECT queries: pull precise data quickly from any relational database.
- Filter, sort, and paginate results: build clean, production-ready SQL reports.
- Join multiple tables: combine user, course, and enrolment 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 are saying
Your classes are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to switch platforms... I thank you for everything you do, I've already recommended you to other people...

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

Mariana FerresPhotography Student
I like the content and the presentation style and video transcription, which speeds up the process!

Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.

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