Intro To SQL Course
This course provides a comprehensive introduction to SQL, covering querying, database design, optimization, and safe data management practices for building production-ready skills.

flexible workload from 4 to 360h
valid certificate in your country
What will I learn?
Introduction to SQL Course equips you with practical skills to query and manage relational databases confidently. You will learn SELECT, filtering, sorting, aggregation, and joins, then advance to subqueries, EXISTS, and performance basics using indexes and EXPLAIN. Additionally, you will design tables, define keys and constraints, and practise safe INSERT, UPDATE, DELETE, and transaction workflows for reliable, production-ready data handling.
Elevify advantages
Develop skills
- Design relational schemas: model tables, keys, and constraints quickly.
- Write clean SQL: CREATE TABLE, INSERT, UPDATE, DELETE with safe patterns.
- Optimise queries: use indexes, EXPLAIN plans, and basic tuning in minutes.
- Query data fluently: SELECT, JOINs, filters, GROUP BY, and aggregates.
- Protect data: apply checks, soft deletes, and backup-aware workflows.
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
Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of my interest without needing to change 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 way videos are presented and transcribed, which speeds up the process!

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

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