Comprehensive SQL Databases Course
This course equips you with SQL skills for subscription-based systems. Learn to create robust schemas, execute complex queries, optimise indexes, manage migrations, seed realistic data, and validate quality to support invoicing, MRR/ARR reports, support metrics, and performant applications in production environments.

4 to 360 hours of flexible workload
certificate valid in your country
What Will I Learn?
Gain expertise in SQL for subscription data management through this practical course. Design effective schemas, apply strict constraints, craft reliable CREATE TABLE statements, develop optimised queries for MRR, ARR, active subscriptions, overdue payments, and support metrics, optimise indexes, handle migrations, seed test data, and ensure data integrity for dependable analytics and reporting.
Elevify Advantages
Develop Skills
- Advanced SQL analytics: develop intricate MRR, ARR, and overdue reports efficiently.
- Production-ready schema design: structure subscription data using normalised 3NF tables.
- Strong constraints and keys: implement business logic via foreign keys, checks, and unique constraints.
- Optimised indexing strategies: enhance query speed with composite and covering indexes.
- Secure data seeding: produce realistic anonymised test data using bulk insertion methods.
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
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