Comprehensive SQL Databases Course
Master SQL for subscription-based systems in real scenarios. Create database designs, develop advanced queries, optimize indexes, and construct ready-to-use databases that drive billing, MRR and ARR reports, support tracking, and efficient tech solutions. This course equips you with hands-on skills for production environments, covering schema modeling, constraint enforcement, performance tuning, data seeding, and quality validation to support reliable analytics and business insights.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Gain mastery in SQL using practical subscription data through this focused, practical course. Design strong database structures, set clear rules, and create reliable CREATE TABLE scripts. Build fast queries for monthly recurring revenue, annual recurring revenue, active subscriptions, late payments, and customer support data, while optimizing indexes, handling updates, adding real test data, and ensuring data accuracy for solid reports and analysis.
Elevify advantages
Develop skills
- Advanced SQL reporting: create detailed MRR, ARR, and overdue reports quickly.
- Strong schema building: structure subscription info in normalized third normal form tables.
- Solid rules and links: apply business logic using foreign keys, checks, and unique fields.
- Optimized indexing: speed up queries with composite and covering index strategies.
- Secure test data setup: produce lifelike anonymized data via bulk insertion 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.What our students say
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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.

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

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