SQL Query Course
5/5
Master SQL querying for production analytics, from schema design to optimization and scaling in PostgreSQL and MySQL.

5.0 in rating
flexible workload from 4 to 360h
valid certificate in your country
What will I learn?
This SQL Query Course teaches you to write accurate reporting queries for active users, revenue, logins, overdue invoices, and growth by country. You will design schemas, keys, and indexes, optimize queries for PostgreSQL and MySQL, and apply safe deployment practices. Learn scaling strategies, monitoring, and testing so your dashboards, reports, and analytics stay fast, reliable, and ready for real production workloads.
Elevify advantages
Develop skills
- Write production-grade SQL reports for users, revenue, and billing in days, not weeks.
- Design robust schemas with keys, constraints, and indexes tailored for analytics.
- Optimize SQL with smart indexes, query rewrites, and engine-specific best practices.
- Scale large tables using partitioning, materialized views, and summary tables safely.
- Monitor, test, and troubleshoot slow SQL using EXPLAIN, logs, and APM tools.
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 classes are perfect. I got the one-year package and finally have the chance to follow several topics I'm interested in without having to switch platforms... I appreciate everything you do, I've already recommended you to others...

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 the videos are presented and transcribed, which speeds up the process!

Luciana AlvarengaNail Design Student
The platform is fast and easy to use. The variety of content and the extra videos really help with learning.

Giulio CarloPrompt Engineering Student
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