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Free SQL Course of the Month – Creating Basic 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 March! 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? Or maybe you are just starting your adventure with PostgreSQL and want to gain new skills. In any case, you've come to the right place. This is the best SQL reporting course for the PostgreSQL database.

Throughout March 2022, you can develop your analytical skills with free access to our interactive course on Creating Basic SQL Reports in PostgreSQL!

At, we choose one of our SQL courses each month and make it available to our users for free. The rules are simple. This SQL course is free; you risk nothing.

Here's what you need to do to take the SQL Reports in PostgreSQL course for free, without spending a dime:

  • Create a free com account or log in if you already have one.
  • Start the course. You have free access to its content until the end of March 2022.

Why should you trust Well, thousands of people have benefited from our SQL courses to achieve their goals. We know some may have more difficult lives and need just a little help to get back on their feet. So, we give our users a chance to learn SQL for free. Nothing stops you now from being successful.

Creating Basic SQL Reports in PostgreSQL

What Are SQL Reports?

Since you are here reading this article, you should know SQL is a language for working with relational databases. It has been a standard in the IT industry for several decades. If you are serious about your career, you should learn it.

One of the most popular databases is the open-source PostgreSQL. It is currently the best choice, still gaining popularity, has a huge online community, and is a database for which skills are highly sought after by employers. Still hesitating? Read “Is Learning PostgreSQL in 2022 Worthwhile?” then come back here for a free SQL course.

But let's go back to the SQL Reports themselves. What is it all about?

Imagine your company has a database containing, for example, data on customers, transactions, money flows, etc. Lots of data. To obtain, for example, a list of customers who have spent the most on specific products in a given period, it is best to use SQL.

Why? Because it is the easiest way to compile data contained in many databases. Instead of worrying about how to do it or what is happening inside the databases, you just write an SQL query and get the result – in our case an SQL report.

You can struggle with a spreadsheet, or you can write a few lines of SQL code and get the data you need. For a detailed example, see the article “How to Calculate Revenue Growth in SQL.”

Of course, more complicated and complex reports require the use of more advanced features of SQL. There will be time for them later; for now, start with the basics. This course is perfect for that.

SQL reports are very often the basis for strategic business decisions. In most industries, The reality is you're either data-driven or you're out. Don't get beat by the competition! Check out “Why Does Your Company Need Data Analysis?” for more information.

What Will You Learn in Creating Basic SQL Reports in PostgreSQL?

Creating Basic SQL Reports in PostgreSQL

Our course is designed to guide you through the entire learning process. Don't worry that it is too difficult. If you know the basics of SQL, you can manage it for sure. If you have never written a single PostgreSQL query, start with SQL Basics in PostgreSQL.

By choosing our interactive PostgreSQL course, you learn to build SQL reports from scratch using PostgreSQL GROUP BY and aggregate functions. You learn how to manage long queries, how to include multiple metrics in a single SQL query, and how to work with a PostgreSQL database with multiple tables.

The first exercise is a warm-up. Here, you refresh your skills by writing basic queries in a short quiz. You also learn about the database model we work on.

You use aggregate PostgreSQL functions to count some business objects based on your criteria or to calculate total amounts based on other objects. There is no place for fluff here, only the necessary skills!

The next step for successful data analysis is classification with CASE WHEN and GROUP BY. Without those, very few SQL reports are possible, so it's important to know them well. In this part of our online SQL course, you also learn about the most common beginner mistakes and how to avoid them.

Last but not least, you teach yourself how to compare different business groups in just one SQL report. You find out how to do it in three ways and learn why it's good to know them all.

Now for the details. In this month’s free SQL course, you learn how to:

  • Classify data using the CASE WHEN syntax and use classifications to group objects in a GROUP BY
  • Use PostgreSQL aggregate functions such as COUNT() and SUM().
  • Calculate average values, maximum averages, and minimum averages.
  • Make long queries clear.
  • Insert multiple metrics in SQL reports.
  • Calculate ratios and percentages.
  • Compare global and granular metrics.
  • Compare different business groups in a single report picking one of three methods presented in the course.
  • Use common table expressions (CTEs).

Why Choose Courses?

In learning anything, the most important thing is to find a credible and reliable source of information. Of course, you can learn from YouTube or from courses offered by platforms that teach cooking or Spanish at the same time.

However, it is much better to choose a platform focused only on what you want to learn. We are the best in the world when it comes to SQL. But you do not have to take our word for it! See the testimonials and ratings from satisfied users every day.

Why do they choose our SQL courses? First of all, our courses are created by enthusiasts and experts. Yes, we really love databases! We know what you need, and we give it to you in the simplest and most effective form.

Our courses are interactive. They provide a real hands-on learning experience. You write real SQL queries and see their results. You don't need to install anything or set anything up. As long as you have Internet access and a browser, you can learn SQL with us.

The Creating Basic SQL Reports in PostgreSQL course consists of 97 interactive SQL exercises. We estimate it takes about 10 hours to complete.

Creating Basic SQL Reports in PostgreSQL

Who Should Take This Course?

If you would like to become a data analyst or manage your business based on data, this is the perfect course for you. This SQL course is also useful for students preparing for a computer science exam. Are you one of them? After completing the course, check our educational offer.

Upon completion of this course, you receive a personalized certificate of completion. You can put it on your LinkedIn profile or show it off to your colleagues and boss.

Learn SQL Reporting in PostgreSQL for Free in March 2022

If you learn to create basic reports in PostgreSQL, a useful skill, your value in the labor market increases significantly. There is a great demand right now for people who can create reports and write PostgreSQL queries. Just check the job advertisements. The most popular platforms of this type are found here.

You don't even have to quit your current job. You can work as a freelancer and implement SQL projects remotely. See how to do it effectively and profitably.

If you want more, go deeper into PostgreSQL and do our SQL from A to Z in PostgreSQL track. It is a perfect learning path to become an SQL expert. It is a set of nine interactive SQL courses:

You may think this is a huge challenge. Well, we won't lie to you, it is! But it's really worth it. With our course, you gain unique skills that allow you to achieve your goals.

It's time to learn PostgreSQL! Grab a cup of coffee or your favorite tea and start learning today with this interactive free Creating Basic SQL Reports in PostgreSQL course!