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Query Course

Query Course
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, 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 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 effectively.
  • Craft reporting queries for tech platforms like leaderboards and revenue dashboards.
  • Design relational schemas for users, courses, payments, and progress tracking.
  • Optimise SQL performance with smart indexing and query analysis techniques.
  • Produce professional SQL deliverables including DDL, sample data, and review-ready queries.

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.
Workload: between 4 and 360 hours

What our students say

I was just promoted to Intelligence Advisor for the Prison System, and the Elevify course 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. A lot of valuable information.
WiltonCivil Firefighter

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