SQL Basics Course
This course teaches essential SQL skills for querying relational databases, from basic SELECT statements to advanced joins, aggregations, and best practices for writing clean, portable code across major database systems.

4 to 360 hours flexible workload
valid certificate in your country
What will I learn?
The SQL Basics Course provides practical skills to query real relational databases quickly. You'll learn SELECT fundamentals, filtering, sorting, and pagination, then progress 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 say
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