Query Course
Query Course delivers essential SQL mastery for tech environments. Through a real-world online learning platform example, you'll design schemas, implement safe data updates, generate insightful reports, and optimize performance with indexes to ensure precise analytics and dependable operations in production systems.

4 to 360h flexible workload
certificate valid in your country
What will I learn?
Query Course equips you with skills to create strong database schemas, craft accurate SQL queries, and develop dependable reports for practical learning platforms. You'll gain expertise in joins, aggregations, window functions, subqueries, and date filtering, while learning to boost efficiency through indexing, EXPLAIN plans, and materialized views. It also addresses secure updates, deletes, transactions, and polished SQL outputs ready for review in data-heavy environments.
Elevify advantages
Develop skills
- Secure SQL updates and deletes to safeguard live data in operational systems.
- Develop reporting queries for tech products like leaderboards and revenue dashboards.
- Design relational schemas for users, courses, payments, and progress tracking.
- Tune SQL performance using indexes and efficient query patterns for analytics.
- Produce production-ready SQL with clean DDL, sample data, and reviewable queries.
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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