The "Course of the Month" offers a specially selected SQL course that is free for a limited time, allowing you to focus on building a specific skill or mastering an essential SQL concept. Each month, LearnSQL.com highlights an expertly developed course that guides learners through practical, real-world scenarios, available at no cost during that period. Below is a collection of articles showcasing the "Course of the Month" selections. Don't miss the chance to access these free SQL courses and elevate your SQL expertise. Stay tuned for more exciting opportunities! 1 Jul 2025 Jakub Romanowski Course of the Month: JOINs in PostgreSQL Updated on: July 1, 2025 Our PostgreSQL JOINs course will help you consolidate your knowledge of working with data from two or more tables in a PostgreSQL database. Throughout the month of July 2025, this awesome SQL course is absolutely FREE! Wondering why we want to give you this SQL course for free? We've been doing this for a long time. Every month, we choose one of our interactive online SQL courses and give users free access to it. Read more 2 Jun 2025 Jakub Romanowski Free Course of the Month: 2024 Monthly SQL Practice Sets – Advanced Ready to take your SQL skills to the next level? This June, you can access our most hands-on advanced course – 2024 Advanced SQL Practice Challenges – completely free. Whether you're preparing for a job interview, handling complex data at work, or just want to challenge yourself with real SQL tasks, this course offers exactly what you need. It's packed with high-level exercises based on realistic business problems that will sharpen your thinking and test your skills. Read more 1 May 2025 Jakub Romanowski Free Course of the Month: 2025 Monthly SQL Practice Sets – Basic Ready to sharpen your SQL skills with real-world challenges? We’ve got something special for you! Our 2024 Monthly SQL Practice Sets - Basic course is completely free throughout May 2025 – and it’s the perfect way to improve your SQL by doing, not just reading. Hey, got a minute? If you're looking to boost your SQL skills, now's the perfect opportunity. We've just made our 2024 Monthly SQL Practice Sets - Basic course completely free for the entire month of May 2025. Read more 1 Apr 2025 Jakub Romanowski Course of the Month: Revenue Trend Analysis in PostgreSQL Updated on: April 1, 2025 Need to understand what your data is saying about your business? In April 2025, our Free SQL Course of the Month is Revenue Trend Analysis in PostgreSQL. Don't miss this opportunity to elevate your analytical capabilities with a leading database system! Understanding revenue trends is crucial for business success, but effective data analysis can be challenging. Dive into the world of SQL reports and enhance your business growth strategies with PostgreSQL. Read more 3 Mar 2025 Jakub Romanowski Course of the Month: Window Functions in PostgreSQL Are you looking for the best way to master SQL window functions? Throughout March 2025, you can access the interactive course Window Functions in PostgreSQL for free. Boost your skills at no cost. Hurry, time is running out! Need a free PostgreSQL course on window functions? You've come to the right place! If you are reading this article, you probably know PostgreSQL is one of the most popular databases in the world. Read more 3 Feb 2025 Jakub Romanowski Free Course of the Month: Customer Behavior in MySQL Have you ever wondered how businesses really get to know their customers? It’s all about analyzing behavior and, if you’re working with MySQL, there’s an awesome free course on LearnSQL.com that shows you how to do just that. Let me tell you all about it! If you’ve got the basics of MySQL down and want to dig into customer behavior analysis, you’re in luck! LearnSQL.com has a free course this month just for you—Customer Behavior Analysis in MySQL. Read more 1 Jan 2025 Jakub Romanowski Free Course of the Month: SQL Subqueries: Real-World Exercises For All Levels Want to improve your SQL skills? Our free course, SQL Subqueries: Real-World Exercises for All Levels, will teach you subqueries—an essential tool in SQL. Subqueries help with advanced data analysis and problem-solving, and we've made getting started simple. Subqueries are like SQL's secret weapon—they let you embed one query's result inside another. Instead of writing multiple queries and connecting the dots manually, a subquery nests the data seamlessly, making your code faster, cleaner, and easier to understand. Read more 2 Dec 2024 Jakub Romanowski Course of the Month: SQL Practice – A Store Updated on: December 2, 2024 This December, seize the opportunity to learn and practice SQL for free with our Basic SQL Practice: A Store course. Designed for an interactive and hands-on learning experience, this course starts with SQL basics and guides you through crafting queries that underpin business intelligence. Ready to get a grip on the fundamentals of SQL and dive into practical database management? Our December Course of the Month, Basic SQL Practice: A Store, is your perfect match! Read more 1 Nov 2024 Jakub Romanowski Course of the Month: Customer Behavior in PostgreSQL Ever wondered how top businesses understand their customers so well? The secret lies in data analysis, and we're offering you the key – for free – in our Customer Behavior Analysis in PostgreSQL course! Are you familiar with the basics of PostgreSQL and eager to delve deeper into customer behavior analysis? Our November 2024 Course of the Month, Customer Behavior Analysis in PostgreSQL, has you covered! And the best part? Read more 1 Oct 2024 Jakub Romanowski Free Course of the Month: Blog & Traffic Data Why practice SQL with real-life scenarios? We'll explain in this article – and we’ll show how you can do it for free during October 2024 with this LearnSQL.com course! SQL is the backbone of many data-driven applications and businesses. It's a powerful language that allows you to interact with databases, retrieve data, and make insightful decisions. If you're looking to improve your SQL skills, our Basic SQL Practice: Blog & Traffic Data course is the perfect opportunity. Read more 1 Sep 2024 LearnSQL.com Team Course of the Month: SQL Practice Set in PostgreSQL Do you know the basics of PostgreSQL but still need some practice? Look no further! Here is a great interactive course, SQL Practice Set in PostgreSQL. Throughout the month of September, you have access to it for FREE! We at LearnSQL.com believe that to learn a new skill, you need basic theoretical knowledge and, above all, a lot of practice. It's the same with writing PostgreSQL queries – you need a lot of PostgreSQL practice. Read more 1 Aug 2024 Jakub Romanowski Course of the Month: GROUP BY Extensions in PostgreSQL Do you work with data? Want to be able to create better and more sophisticated SQL reports? Then check out our interactive GROUP BY Extensions in PostgreSQL course. In August 2024, you can complete this online PostgreSQL course for FREE! How can you get this free SQL course in August 2024? Create a free LearnSQL.com account or log in if you already have one. Start the course. Read more 2 Jun 2024 Jakub Romanowski Course of the Month: 2023 Advanced Monthly SQL Practice Enhance your SQL skills this June 2024 with our exclusive offer on the 2023 Monthly SQL Practice Sets - Advanced course, available for free for a limited time! As summer rolls in, it's the perfect time to learn new skills or brush up on the ones you've got. This June, why not seize the chance to deepen your SQL expertise with some challenging exercises drawn straight from the business world? Read more 1 May 2024 Jakub Romanowski Course of the Month: 2023 Basic Monthly SQL Practice Start enhancing your SQL skills this May with our free SQL course, 2023 Monthly SQL Practice Sets - Basic! Spring is a great time to learn something new or improve your current skills. This May, we’re offering a unique opportunity to boost your SQL knowledge through practical exercises drawn from real-world business scenarios. Available free for the entire month, our 2023 Monthly SQL Practice Sets - Basic course provides interactive challenges involving databases from different industries. Read more 1 Feb 2024 Jakub Romanowski Course of the Month: Common Functions in PostgreSQL Do you want to be able to use popular PostgreSQL functions and process different types of data more easily? You've come to the right place! Here is the Common Functions in PostgreSQL course. Throughout the month of February, this SQL course is absolutely FREE! You are probably wondering why LearnSQL.com is offering a free SQL course. Well, we've been doing this for a long time. We choose one of our courses every month and give users free access to it. Read more 1 Jan 2024 Jakub Romanowski Course of the Month: SQL Practice - Running Kick off the new year and enhance your SQL skills with January’s free Course of the Month, Basic SQL Practice: Run Track Through Queries! As the new year unfolds, it's a time for reflection and the setting of new goals. A popular resolution among professionals and students alike is to acquire new skills or deepen existing ones. Whether it's learning a new language, mastering a software tool, or enhancing your job qualifications, the start of a new year provides a fresh opportunity for personal and professional growth. Read more 7 Dec 2023 Jakub Romanowski Free SQL Courses to Elevate Your Skills In this article, I'll explain why LearnSQL.com offers free SQL courses. I’ll also introduce you to some of the courses we’ve offered for free over the years. If you're eager to enhance your SQL skills without breaking the bank, you've come to the right place. You're here because you understand the significance of learning SQL. But are you tired of those lengthy YouTube tutorials? How about diving into an online SQL course? Read more 1 Aug 2023 Jakub Romanowski Course of the Month: Window Functions Practice Set Do you want to enhance your SQL skills and learn how to prepare complex SQL reports? Maybe you've learned SQL window functions but need a refresher. This month, our unique SQL course Window Functions Practice Set is completely free! You're probably wondering ‘What's the catch?’. Why do we give something for free to our users? Well... we want to support people like you who are constantly striving to be better. Read more 1 Jul 2023 Jakub Romanowski Course of the Month: Write Functions in PostgreSQL Why learn to write user-defined functions? I’ll explain in this article – and how you can learn for free during July 2023 with this LearnSQL.com PostgreSQL course! PostgreSQL is one of the most popular databases in the world. This is mainly due to its great functionality and the fact that it’s open source (i.e. free!). Postgres is fast, it runs on multiple systems, and it’s suitable for almost any application. Read more 1 Jun 2023 Jakub Romanowski Course of the Month: INSERT, UPDATE, DELETE in Postgres Do you want to be a data engineer or data analyst? Do you work with databases daily and need to expand your skills with the basics of data manipulation? You've come to the right place. For June 2023, our SQL course of the month is PostgreSQL INSERT, UPDATE, and DELETE Commands! Learn SQL for FREE! How do you get this free PostgreSQL course in June? Create a free LearnSQL. Read more 1 Apr 2023 Jakub Romanowski Course of the Month: SQL Reports in PostgreSQL If you are looking for a course that takes your PostgreSQL skills to a completely different level, you've come to the right place. You can learn for free in April! We chose SQL Reporting in PostgreSQL for our Free SQL Course of the Month. It's just awesome – I'll tell you why. Do you want to be even better at SQL? Do you know the basics and want your SQL reports to be even more sophisticated? Read more 1 Jun 2022 Jakub Romanowski Course of the Month: PostGIS What is PostGIS, and why should you learn it? (Hint: Our SQL PostGIS course is free throughout June 2022!) Did you know databases can store geographic data? This is how interactive maps are made, most often based on PostGIS. In this article, I will tell you what PostGIS is and why it’s worth learning. Moreover, I am going to offer you an awesome online PostGIS SQL course which you can do for free during June 2022! Read more 1 Oct 2021 LearnSQL.com Team Course of the Month: SQL Practice Set in MS SQL Server You have to train a lot to learn a new skill. It is the same with MS SQL Server. Do you want to write good SQL queries? Or maybe you are preparing for a job interview? You've come to the right place! Throughout October you will have access to our amazing hands-on MS SQL Server course for FREE! You probably just thought: “There must be a catch. Why would someone give away SQL courses for free? Read more 1 Sep 2021 Jakub Romanowski Course of the Month: Revenue Analysis in SQL Server It is impossible to run a business without a good analysis of revenue trends. But how do you do it effectively? You can rely on good old Excel, but a much better idea is to use SQL and databases. Learn how to create SQL reports and track the growth of your business with MS SQL Server. Here is the course, Revenue Trend Analysis in SQL Server. It’s FREE throughout September! Read more 3 Aug 2021 Jakub Romanowski Course of the Month: Creating SQL Reports in SQL Server This is another in our series of free SQL Courses of the Month. This time, you can learn SQL Reporting in MS SQL Server for free. Do you want to be able to prepare even better SQL reports? Or maybe you have some basic knowledge of SQL Server (one of the major SQL dialects) and would like to go a step further? This is the course for you. Read more 1 Jul 2021 Jakub Romanowski Course of the Month: Recursive Queries in SQL Server Do you want to become a SQL expert? To do this, you need to learn SQL CTEs or Common Table Expressions. They can make your queries clearer and more readable. And during July 2021, you can learn CTEs for free using our interactive Recursive Queries in MS SQL Server course! How can you get this free SQL course? Create a free LearnSQL.com account or log in if you already have one. Read more 1 Jun 2021 Jakub Romanowski Course of the Month: GROUP BY Extensions in SQL Server Do you create SQL reports? Do you want them to be even better and more effective? Are you working with MS SQL Server and want to expand your query writing skills? Here is a great, interactive GROUP BY Extensions in MS SQL Server course. For the month of June, you can learn and finish this course for absolutely free. How can you get this free SQL course in June? Read more 4 May 2021 LearnSQL.com Team Course of the Month: SQL Practice Set Are you starting your adventure with SQL and looking for a place to practice your SQL queries? Or maybe you are preparing for a job interview? I have good news for you. Throughout May, you will have access to our amazing SQL practice course for FREE! Why is LearnSQL.com giving you a free SQL course? Every month, our users get the opportunity to take one of our great SQL courses for free. Read more 1 Apr 2021 Jakub Romanowski Course of the Month: Creating Basic SQL Reports Do you want to create good SQL reports from scratch? Are you looking for a course that will help you spread your analytical wings? What if I told you that throughout April 2021, you could access one of the best SQL Reports courses for FREE? Here it is: Creating Basic SQL Reports. What's the catch? There is none. LearnSQL.com provides one of their courses for free from time to time. Read more 2 Feb 2021 LearnSQL.com Team Course of the Month: SQL JOINs If you want to really learn SQL, you can’t skip SQL JOINs. They are some of the most fundamental and commonly used features of the SQL language. That’s why SQL JOINs is our February SQL Course of the Month. What makes SQL JOINs so important? I asked Agnieszka Kozubek-Krycuń, Vertabelo's Chief Content Officer, about it. Here's what she said. Is it true that SQL JOINs are one of the foundations of SQL? Read more 5 Jan 2021 LearnSQL.com Team Course of the Month: Standard SQL Functions Are you dreaming of becoming a data analyst? Or maybe you just want to work effectively with your company’s databases? You can – with SQL functions. We’ve selected Standard SQL Functions to be our January 2021 SQL Course of the Month. What will you find inside? I asked Agnieszka Kozubek-Krycuń, Vertabelo's Chief Content Officer, about it. Here's what she said. What are SQL functions? The term reminds me of SELECT or JOIN. Read more 1 Dec 2020 LearnSQL.com Team Course of the Month: Customer Behavior Analysis in SQL Do you run a business? Do you want to squeeze even more out of your data? Start by analyzing your customers' behavior using SQL! Throughout December, you can learn how to do it for free on LearnSQL.com! I asked Agnieszka Kozubek-Krycuń, Vertabelo's Chief Content Officer, about our December Course of the Month, Customer Behavior Analysis in SQL. Here's what she told me. Let's start with the basics: Why analyze customer behavior? Read more 3 Nov 2020 LearnSQL.com Team Course of the Month: GROUP BY Extensions in SQL Do you want to develop your SQL skills? Do you want to get more out of your data and prepare better reports and summaries? The answer is learning to use SQL’s GROUP BY extensions. But how should you go about this? I asked the same question to Agnieszka Kozubek-Krycuń, Vertabelo’s Chief Content Officer. As she explains, the secret is in this November’s free SQL Course of the Month: GROUP BY Extensions in SQL. Read more 1 Oct 2020 LearnSQL.com Team Course of the Month: How to INSERT, UPDATE, DELETE Data So, you've started learning SQL, and you already know what the SELECT command is and when to use it! Congratulations! Now, it's time to take the next step towards becoming an expert. You need to know the SQL UPDATE, INSERT, and DELETE commands to modify data in your tables. These are the basics that will allow you to work with tables. But what's the best way to learn them? I asked Agnieszka Kozubek-Krycuń, Chief Content Officer at Vertabelo. Read more 1 Sep 2020 LearnSQL.com Team Course of the Month: Analyzing Revenue Trends in SQL We work hard, we learn SQL, and we develop professionally. But why? For our own satisfaction, but also for money! The knowledge of SQL will increase your income significantly. If you are proficient in SQL, you can better analyze your company's revenue. How? I asked Agnieszka Kozubek-Krycuń, Chief Content Officer at Vertabelo. In this article, she answers your questions about our September SQL Course of the Month: Analyzing Revenue Trends in SQL. Read more 4 Aug 2020 LearnSQL.com Team Course of the Month: Recursive Queries Recursive Queries is one of SQL’s more advanced features. You could say they divide SQL users into beginners and experts. But how do you learn recursive queries? And why do you need them, anyway? Agnieszka Kozubek-Krycuń, Chief Content Officer at Vertabelo, is here to help. In this article, she answers your questions about our August SQL Course of the Month: Recursive Queries. Recursive queries … that sounds very serious. Read more 29 Apr 2020 LearnSQL.com Team Course of the Month: Window Functions Spring has come. It is nicer outside. It's a great time to learn something new. Which course should you choose? In April, it's worth it to bet on SQL window functions. What are they, what are they used for, and why are they worth knowing? I asked Agnieszka Kozubek-Krycuń, Chief Content Officer at Vertabelo, these questions. She has a PhD in mathematics and over 10 years’ experience teaching mathematics and computer science at the University of Warsaw. Read more
The "Course of the Month" offers a specially selected SQL course that is free for a limited time, allowing you to focus on building a specific skill or mastering an essential SQL concept. Each month, LearnSQL.com highlights an expertly developed course that guides learners through practical, real-world scenarios, available at no cost during that period. Below is a collection of articles showcasing the "Course of the Month" selections. Don't miss the chance to access these free SQL courses and elevate your SQL expertise. Stay tuned for more exciting opportunities!