1 Apr 2025 Jakub Romanowski Why Learning SQL Beats Relying on AI: Understanding Data Still Matters SQL is a fundamental skill for working with data. While AI tools can assist in query generation and automation, they cannot replace the need for human understanding of database structures, query optimization, and data integrity. Knowing SQL ensures better control over your data and helps you make informed decisions. In this article, I will explain why SQL remains an essential skill, even in the AI era. Artificial Intelligence (AI) can generate SQL queries, automate processes, and assist in data management. 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 25 Mar 2025 Jakub Romanowski What do our Users Think About the SQL Basics Course? Learning the basics of SQL is honestly one of the best decisions you can make right now. Think about how many industries rely on data – marketing, finance, tech, and even healthcare. In this article, I’ll show you why the SQL Basics course at LearnSQL.com is so popular and how it’s helped over 350,000 people level up their SQL skills. This awesome and interactive course has everything you need to get started. Read more 13 Mar 2025 Jakub Romanowski How to Transition From Excel to SQL: A Data Analyst's Perspective If you work with data, chances are you’ve spent countless hours in Excel – filtering data, writing formulas, and dragging cells across columns. Excel is a great tool but, at some point, it starts to slow you down. Huge files crash. VLOOKUPs become a nightmare. PivotTable takes forever to update. That’s when SQL comes in. It’s like Excel’s powerful, more scalable sibling. And the best part? If you know Excel, you already understand many SQL concepts. 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 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? Read more 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. Read more 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. 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 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. Read more «« « 1 2 3 … 13 » »»