SQL for Backend Developers

Name: SQL for Backend Developers
Rating: 4.3 (13 reviews)

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.

Provided by

JetBrains Academy

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Study at your own pace

Fit learning around your schedule. Suitable for all levels.

Learn from the experts

Short, practical text lessons by seasoned developers.

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Integrated with professional tools by JetBrains.

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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.

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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.

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

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

Explore all projects

Topics covered by this course

DBMS

13 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

Essentials

2 topics

Transaction Management

2 topics

Subqueries

1 topic

Learn from the industry experts

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

Jonatan Luna Franco

3 months ago

When I started the course, the initial topics were very easy for me due to my previous SQL experience; in fact, it was almost too basic, and I considered leaving. However, after just a few modules, the complexity grew rapidly—and I'm so glad I stayed. I thoroughly enjoyed all the projects. While th ...

Anatoli Huseu

4 months ago

Many project are very poor prepared, lack clarity and handy details. However the topics them self are good and helpful.

Michel Maia

5 months ago

This course definitely enhanced my SQL skills. Now I have more tools in my toolkit. I would appreciate it if some exercises included clearer examples and if I could access the SQL tables for the projects. I've encountered many errors without any feedback, just a red pop-up with a 403 error code. Des ...