SQL Basics Course
This course provides foundational SQL skills for querying relational databases, covering SELECT statements, filtering, sorting, pagination, joins, aggregates, GROUP BY, HAVING, and best practices for portable SQL across systems like MySQL, Postgres, and SQLite.

from 4 to 360h flexible workload
certificate valid in your country
What will I learn?
The SQL Basics Course equips you with practical skills to query real relational databases quickly. You'll learn the basics of SELECT, filtering, sorting, and pagination, then progress to joins across multiple tables, keys, and data types. You'll practise core analytics patterns using aggregates, GROUP BY, and HAVING, and conclude with best practices for writing clear, portable, and debuggable SQL that works 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 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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