Comprehensive SQL Databases Course
This course equips you with advanced SQL skills for subscription-based systems. You will learn to create efficient schemas, execute complex queries for metrics like MRR and ARR, optimise performance with indexes, manage data migrations, seed test datasets, and maintain high-quality data for invoicing, reporting, and analytics in production environments. Perfect for building robust databases that drive business insights and tech solutions.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Gain expertise in SQL for subscription data management through this practical course. Design solid database schemas, apply strict constraints, and craft reliable CREATE TABLE scripts. Develop optimised queries for MRR, ARR, active subscriptions, overdue payments, and support data, while optimising indexes, handling migrations, creating realistic test data, and ensuring data integrity for dependable reports and analysis.
Elevify advantages
Develop skills
- Advanced SQL analytics: rapidly create complex reports for MRR, ARR, and ageing data.
- 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.
- Performance-focused indexing: optimise queries using composite and covering indexes.
- Secure data seeding: produce realistic anonymised test data with efficient bulk inserts.
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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