intermediate SQL Course
This course advances your SQL skills from basic queries to efficient, production-ready code for reporting and analytics, covering advanced techniques like joins, aggregations, window functions, date handling, and performance optimization.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
The Intermediate SQL Course helps you move beyond basic queries and write clean, reliable code for real reporting needs. You will practice SELECTs with robust filtering, joins, and subqueries, then master aggregation, grouping, and window functions for detailed metrics. Learn to handle dates and time-to-event calculations, design query-friendly schemas, format and document SQL clearly, and apply indexing and execution plan reading to improve performance quickly.
Elevify advantages
Develop skills
- Advanced SELECT and filtering: write clean, accurate queries fast.
- Aggregations and window functions: build rich per-user and per-course metrics.
- Joins and subqueries: combine complex tables for sharp, reliable reports.
- Date and time analytics: compute durations, cohorts, and rolling trends.
- Indexing and EXPLAIN: tune queries for high-performance reporting workloads.
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
Your classes are perfect. I got the one-year package and finally have the chance to follow several topics I'm interested in without having to switch platforms... thank you for everything you do, I've already recommended you to others...

Giulio CarloDigital Marketing Student
I like how the lessons get straight to the point and how I can switch chapters and skip content I don't need.

Mariana FerresPhotography Student
I like the content and the way the videos are presented and transcribed, which speeds up the process!

Luciana AlvarengaNail Design Student
The platform is fast and easy to use. The variety of content and the extra videos really help with learning.

Giulio CarloPrompt Engineering Student
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