Comprehensive SQL Databases Course
Become proficient in SQL for subscription-based systems. Build solid schemas, craft advanced queries, optimise indexes, and develop ready-to-use databases that drive billing, MRR/ARR reports, support tracking, and efficient software solutions. This course equips you with hands-on skills for real production environments, ensuring scalable and reliable data management from design to deployment.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Gain expertise in SQL using practical subscription datasets in this focused, practical course. Craft strong database structures, set strict rules, and create reliable CREATE TABLE scripts. Develop fast queries for monthly recurring revenue, annual recurring revenue, active subscriptions, late payments, and customer support data, while optimising indexes, handling updates, creating lifelike test data, and ensuring data accuracy for dependable reports and analysis.
Elevify advantages
Develop skills
- Advanced SQL reporting: quickly create detailed MRR, ARR, and overdue reports.
- Professional schema building: structure subscription info in normalised third normal form tables.
- Strong rules and links: apply business logic using foreign keys, checks, and unique constraints.
- Optimised indexing: speed up queries with clever combined and full-cover indexes.
- Secure test data creation: produce realistic anonymised data via efficient bulk loading techniques.
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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