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Query Course

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

What will I learn?

This course equips you with skills to craft strong database schemas, write accurate SQL queries, and create dependable reports 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 systems.
  • Craft reporting queries for tech platforms like leaderboards, revenue, and usage dashboards.
  • Design relational schemas for users, courses, payments, and progress tracking.
  • Optimise SQL performance with targeted indexes and efficient query patterns.
  • Produce production-grade SQL including clean DDL, test data, and review-ready 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

Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of my interest without needing to change platforms... I thank you for everything you do, I've already recommended you to other people...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.
Mariana Ferres
Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
Luciana Alvarenga
Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos help a lot with learning.
André Felipe
André FelipePrompt Engineering Student

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