SQL for Backend Developers

4.324 hours2K learnersCertificate
Choose this course to master the fundamentals of database theory, learn SQL statements to access data, and gain practical experience with MySQL.
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What you'll learn

In this course, you'll learn how to use SQL to access and manage data in relational databases, work with table schemas, maintain data consistency, and optimize queries for faster execution. You'll also practice with some of the features provided by MySQL – one of the most popular database management systems for backend development.

You will:

  • learn basic SQL syntax to retrieve, filter, and modify data from tables;
  • ise SQL statements to create new tables and modify existing ones;
  • gain understanding of Join operators to work with data from several tables at once;
  • learn how to use different SQL functions and subqueries to perform complex database operations;
  • get to know indexes and query plans to optimize work with data;
  • use procedures and triggers to create your own functions;
  • learn to work with transactions to maintain data consistency.

Topics covered by this course

DBMS
14 topics
Retrieving Data
9 topics
Introduction to SQL
8 topics
DB Theory
7 topics
Data Modification Language
6 topics
Functions and operations
4 topics
Data Definition Language
3 topics
Transaction Management
2 topics
Computer science fundamentals
1 topic
Subqueries
1 topic
Cybersecurity
1 topic

Learn by doing

# 1
Apply knowledge into practice
You already know the theory. Now it's time to code like you do at work—in a professional IDE, with real project constraints, solving problems that actually matter. Welcome to software engineering as it should be.
# 2
Navigate complexity with surgical precision
Most developers waste months learning random concepts without seeing how they connect. Our interactive Knowledge Map fixes this. It shows exactly how every programming concept relates to others, helping you build a structured mental model of coding.
# 3
Copy the best. Then improve.
Here's what top engineers do that others don't: they study other people's code obsessively. When you get stuck on Hyperskill, you can explore solutions published by other developers. See their exact code. Understand their approach. Learn their tricks.
# 4
Code review that actually makes you better
We stripped code review down to what actually matters: does your solution work? Have you handled the edge cases? Is there a cleaner way to write this? Hyperskill acts like a competent reviewer who actually tests your code. Not genius-level analysis, not architecture debates — just solid feedback on making your code better.

Elevate your engineering mastery through real-world challenges

Master advanced engineering concepts through ambitious projects. Each project deepens your expertise and transforms you from an experienced engineer into an exceptional one.

Computer Store Database

As the manager of the computer hardware shop, your primary responsibility is to retrieve data from the existing database efficiently. Accurate data retrieval is crucial for creating reliable financial documents, accounting records, and business reports.

Graduate

Payroll Management Database

As organizations grow, managing payroll becomes more complex. With more employees to track and pay across departments and various regulations to comply with, errors and disputes can be costly. This project teaches how to manage a database system to track employee data, calculate pay, and generate reports.

Graduate

Databases for Sales

The volume of data generated by our car dealership continues to grow daily. The data can help you draw significant conclusions to run the business more efficiently. But first, we need a convenient way to collect, organize, and store the data. This project focuses on designing and optimizing a database system enabling efficient data management.

Graduate

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Learn from the industry experts

JetBrains Academy

JetBrains Academy

JetBrains Academy is a part of JetBrains, a global software company specializing in the creation of intelligent, productivity-enhancing tools for software developers and teams. With years of expertise in software development and education, JetBrains Academy empowers more than a million people worldwide to learn and teach computer science, and help organizations inspire their teams to reach their goals in tech. Professional development tools play a big role in computer science education. This is why JetBrains Academy courses offer integration with JetBrains IDEs. This integration assists learners in getting experience with real development processes to streamline their learning curve at future work.

Your peers think Hyperskill rocks

Ivan Zykov avatar
Ivan Zykov
2 hours ago
Great course to learn and practice fundamental, intermediate and some of advanced topics of SQL (MySQL dialect). Topics (theory with short practice questions) are very well done. Projects sometimes lack clarity and have inappropriate requirements, but luckily, users' hints and comments help a lot
Yaraslau Krautsou
3 months ago
A practical, project-based course that teaches SQL by building and querying a realistic car-dealership database rather than through isolated exercises. You progress naturally from designing tables off an ERD (primary/foreign keys and identifying relationships) to genuinely useful features — triggers ...
David Augusto Hernández Martín avatar
David Augusto Hernández Martín
3 months ago
This course presents essential concepts of SQL, database management systems (DBMS), and database design that are very useful. After completing it, I can say that I am well prepared for a database administrator (DBA) position.

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Course provided by JetBrains Academy
import.java.util.*has successfully completed the courseSQL for Backend Developers
Issue date August 21, 2026
56 topics completed

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