Query Course
Query Course Mastery provides comprehensive SQL training for real-world technology setups. Participants learn to design schemas, execute safe updates, create robust reports, and optimize indexes through a detailed online learning platform example, ensuring precise analytics and dependable data handling across production systems.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
This course equips you with skills to craft strong database schemas, compose accurate SQL statements, and develop dependable reports for practical learning environments. Learners will gain expertise in joins, aggregations, window functions, subqueries, and date filtering, followed by performance enhancements via indexing, EXPLAIN plans, and materialized views. It further addresses secure updates, deletions, transactions, and polished SQL outputs ready for review in data-heavy applications.
Elevify advantages
Develop skills
- Secure SQL updates and deletions to safeguard live data in operational environments.
- Reporting queries tailored for technology products like leaderboards, revenue tracking, and usage dashboards.
- Effective relational schema design for modeling users, courses, payments, and progress tracking.
- SQL performance optimization through strategic indexing and efficient query patterns for rapid analytics.
- Production-grade SQL assets including clear DDL, test data, and queries prepared for team review.
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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