Articles Cookbook
27 Feb 2025
LearnSQL.com Team

New Monthly SQL Practice for March 2025!

If you are a more advanced SQL user who is comfortable using CASE WHEN, GROUP BY, aggregate functions, and common table expressions (CTEs), you can check your knowledge with the March SQL Practice. On LearnSQL.com, you‘ll find a new challenge to solve every month. Maybe this is the first time you’ve come across our Monthly SQL Practices. LearnSQL.com offers one SQL Practice each month: at the basic level on even-numbered months and at the advanced level on odd-numbered months.
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24 Feb 2025
Jakub Romanowski

The Most Common PostgreSQL Commands: a Beginner's Guide

PostgreSQL is more than just a database – it’s the trusted tool behind some of the most demanding data projects out there. From analyzing sales trends to powering apps with real-time data, PostgreSQL commands let you take control of your data with precision and speed. In this article, I’ll walk you through the most common PostgreSQL commands that beginners need to know. Did you know that PostgreSQL is one of the most loved databases out there?
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20 Feb 2025
Jakub Romanowski

What Your Favorite SQL Query Says About You

SQL isn’t just about crunching data: it’s a peek into how you tackle problems and think about the world. In this article, I’ll dig into the quirks and traits behind some of the most popular SQL queries. Let’s see which one feels like you! Ever caught yourself wondering what your go-to SQL queries reveal about your personality? Whether you're going deep into SELECT * or crafting complex CASE statements, every choice reflects a bit of who you are.
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18 Feb 2025
Ekre Ceannmor

5 Games to Learn SQL

Learning SQL doesn’t have to be boring! In this article, I’ve rounded up some awesome SQL games that turn practice into an adventure. From solving crimes to escaping islands, there’s something fun waiting for everyone. Do you want to learn SQL in an interactive and fun way? We have compiled a list of 5 immersive SQL games that will help you master SQL using engaging stories. The in-game exercises range from basic SELECT statements to complex reports with common table expressions (CTEs) and window functions.
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12 Feb 2025
Valentyn Kucherenko

Top 10 Industries Hiring SQL Experts in 2025

In the era of AI and advanced technologies, it might seem surprising that a straightforward querying language like SQL remains so widely used. Yet, the simplicity and efficiency of SQL make it indispensable for data analysis. More and more industries are hiring SQL experts to manage and interpret growing volumes of data. Here are the top 10 industries to look out for as an SQL expert in 2025. While some of these industries are rather obvious, there are others that even I found surprising during my research.
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11 Feb 2025
Agnieszka Kozubek-Krycuń

SQL GROUP BY

The GROUP BY clause helps you summarize data by grouping rows with similar values. In this guide, we’ll show you how it works with simple examples. GROUP BY is an SQL clause that organizes data into groups based on one or more columns, so you can summarize data by calculating things like totals, averages, or counts for each group. To learn more about using GROUP BY in practice, try our interactive SQL Basics course with 129 hands-on practical exercises to help you master the basics of SQL, including GROUP BY .
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6 Feb 2025
Ekre Ceannmor

SQL Query Syntax

Looking for a quick overview of SQL query syntax? In this article, we will discuss the building blocks of a simple SQL query. Are you starting to learn SQL and wondering about the proper way to structure an SQL query? In this article, we will discuss what a query is and what is the proper way to construct one. We’ll also include some helpful examples. Ready? Let’s get started with a very basic question:
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4 Feb 2025
Jakub Romanowski

How SQL can Make Your Life as an Accountant Easier

SQL for accountants is a powerful tool that takes your work beyond the limits of Excel. If you’ve ever faced a giant spreadsheet that refuses to load or spent hours on repetitive tasks, SQL can make your life so much easier. Let’s be real: Excel is great, but there comes a point when it’s just not enough. If you’ve ever stared at a giant spreadsheet that takes forever to load, you’ll know what I mean.
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31 Jan 2025
LearnSQL.com Team

New Monthly SQL Practice for February 2025!

Ready for a new basic SQL challenge? This time, you will help Arthur Hart, the director of a local clinic, gain important insight into its operations. Get ready to dive into the world of SQL queries as you help the clinic enhance the patient experience. Welcome to the February SQL Practice course! In our February 2025 SQL Practice, you will help Arthur Hart, the director of a local clinic, gain insight into the clinic’s operations.
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30 Jan 2025
Jakub Romanowski

A Day in The Life of a Data-Driven Marketer Who Uses SQL

If you’re in marketing and want to supercharge your campaigns, understanding SQL is a game-changer. It’s not just for techies—marketers can use SQL to pull detailed data, analyze performance, and make smarter decisions. Plus, SQL makes working with databases a breeze, helping you target the right audience and optimize your strategies. Marketing and databases might not seem like they go together, right? But let me tell you, they make a killer combo.
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