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Query Course

Query Course
4 to 360 hours flexible workload
valid certificate in your country

What will I learn?

This course equips you with skills to craft robust database schemas, write accurate SQL queries, and develop dependable reporting for practical learning platforms. You'll gain expertise in joins, aggregations, window functions, subqueries, and date filtering, while learning to boost performance via 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 environments.
  • Develop reporting queries for tech platforms, including leaderboards and revenue metrics.
  • Design relational schemas for users, courses, payments, and progress tracking.
  • Optimise SQL performance using targeted indexes and efficient query patterns.
  • Produce production-grade SQL assets like DDL scripts, sample data, and peer-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.
Workload: between 4 and 360 hours

What our students say

I was just promoted to Intelligence Advisor for the Prison System, and the course from Elevify was crucial for me to be chosen.
EmersonPolice Investigator
The course was essential to meet the expectations of my boss and the company I work for.
SilviaNurse
Great course. Lots of valuable information.
WiltonCivil Firefighter

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