Beginner SQL Course
5/5
This beginner SQL course focuses on practical querying of subscription and payment data, covering essential SQL techniques from basic SELECT statements to advanced aggregation and data handling for efficient analytics.

5.0 in rating
flexible workload of 4 to 360h
valid certificate in your country
What will I learn?
Beginner SQL Course equips you with practical skills to query real subscription and payment data quickly. You will learn SELECT, WHERE, ORDER BY, joins, and set operations, then advance to GROUP BY, aggregates, and HAVING for robust reporting. You will also manage dates, NULLs, and open-ended subscriptions, plus defensive query design and testing to ensure your SQL is accurate, efficient, and prepared for daily analytics.
Elevify advantages
Develop skills
- Write clean SELECT queries: shape, filter, and sort data with confidence.
- Master joins quickly: combine tables with INNER, LEFT, RIGHT, and FULL JOINs.
- Analyze metrics swiftly: aggregate with GROUP BY, HAVING, and core functions.
- Handle real-world dates and NULLs: fix messy CSV data in subscription tables.
- Build reliable SQL: test queries, avoid double-counting, and tune performance.
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 workloadWhat our students say
Your lessons 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... I appreciate everything you do, and 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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