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SQL Course

4/5
SQL Course
4.0 in the evaluation
flexible workload from 4 to 360h
valid certificate in your country

What will I learn?

This SQL Course teaches you how to design and optimize relational schemas for subscription billing, configure major database engines, and implement robust constraints for accurate monetary data. Learn to populate realistic test data, run analytical queries for recurring revenue and overdue invoices, and maintain performance with indexing, safe migrations, and cleanup strategies in a concise, practical format.

Elevify advantages

Develop skills

  • Design robust billing schemas: model subscriptions, invoices, and payments fast.
  • Optimize SQL performance: build smart indexes and read explain plans with ease.
  • Enforce data integrity: apply keys, constraints, and safe cascade delete rules.
  • Generate realistic test data: seed subscription, invoice, and payment scenarios quickly.
  • Build analytical SQL reports: MRR, churn, overdue invoices, and top-paying customers.

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.
Workload: between 4 and 360 hours

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'm grateful for everything you do, I've already recommended you to other people...
Giulio Carlo
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 Ferres
Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
Luciana Alvarenga
Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos help a lot with learning.
André Felipe
André FelipePrompt Engineering Student

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