Intro To SQL Course
Master SQL fundamentals for real-world tech projects. Learn to model relational data, write safe queries, use indexes for performance, and manage inserts, updates, and deletes with confidence to support scalable, reliable applications.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Intro to SQL Course gives you practical skills to query and manage relational databases with confidence. Learn SELECT, filtering, sorting, aggregation, and joins, then move into subqueries, EXISTS, and performance basics with indexes and EXPLAIN. You also design tables, define keys and constraints, and practice safe INSERT, UPDATE, DELETE, and transaction workflows for reliable, production-ready data work.
Elevify advantages
Develop skills
- Design relational schemas: model tables, keys, and constraints fast.
- Write clean SQL: CREATE TABLE, INSERT, UPDATE, DELETE with safe patterns.
- Optimize 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 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 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 switch 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.

André FelipePrompt Engineering Student
FAQ
Who is Elevify? How does it work?
Do the courses have certificates?
Are the courses free?
What is the course workload?
What are the courses like?
How do the courses work?
What is the duration of the courses?
What is the cost or price of the courses?
What is an EAD or online course and how does it work?
PDF Course