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Comprehensive SQL Databases Course

Comprehensive SQL Databases Course
from 4 to 360h flexible workload
valid certificate in your country

What will I learn?

Gain mastery in SQL using practical subscription data in this focused, hands-on course. You will create strong database schemas, set exact constraints, and craft reliable CREATE TABLE statements. Build fast queries for MRR, ARR, active subscriptions, overdue payments, and support metrics, while optimising indexes, handling migrations, adding realistic test data, and ensuring data quality for solid reporting and analysis.

Elevify advantages

Develop skills

  • Advanced SQL analytics: create complex MRR, ARR, and overdue reports quickly.
  • Production-ready schema design: structure subscription data using clean 3NF tables.
  • Strong constraints and keys: apply business rules via foreign keys, checks, and unique constraints.
  • High-performance indexing: optimise queries with composite and covering indexes.
  • Secure data seeding: produce realistic anonymised test data using bulk insert methods.

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 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 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.
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Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
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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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André FelipePrompt Engineering Student

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