7 Jan 2025 Jakub Romanowski How Advanced SQL Skills Can Accelerate Your Data Analytics Career If you're feeling good about the basics of SQL and wondering what’s next, advanced SQL is where things get really exciting. This is where you go from just querying data to transforming it, cleaning messy datasets, and creating actionable insights that solve real business problems. Advanced SQL skills can help you level up your career, whether it’s landing a senior analyst role or becoming the go-to data expert on your team. Read more 2 Jan 2025 Jakub Romanowski SQL in 2025: What’s New And Why It Still Matters for Data Pros As we enter January 2025, data technologies continue to advance. AI, cloud computing, and big data are shaping the industry, but SQL (Structured Query Language) remains fundamental for managing and analyzing data effectively. With new technologies emerging all the time, you might wonder if SQL is still relevant. The answer is a definite yes. It remains as essential as ever. In this post, we’ll look at why SQL is still a must-have skill in 2025, explore the latest trends, and provide actionable tips on improving your SQL expertise. 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 31 Dec 2024 Jakub Romanowski SQL Myths Debunked: 6 Lies About SQL You Need to Stop Believing SQL has been around for decades, yet misunderstandings about it continue to circulate. Some people think it's outdated or not suited for today’s data challenges. But are these claims really true? Read on to explore the common myths about SQL and separate fact from fiction. There are many misconceptions about SQL (Structured Query Language). With all the buzz around new technologies, some believe SQL has become irrelevant and incapable of handling today's data needs—but that couldn't be further from the truth. Read more 26 Dec 2024 Jakub Romanowski Why SQL is The Key to Business Success in 2025 And Beyond Success in business today depends on making data work for you. In this article, I will explain how SQL helps businesses analyze data effectively, improve operations, and uncover valuable insights to stay competitive. Data is the fuel for today's business success, from customer preferences to sales trends and supply chain efficiency. But simply collecting data isn’t enough—success comes from transforming that data into actionable insights that drive informed decisions. This is where Structured Query Language (SQL) comes in. Read more 24 Dec 2024 Jakub Romanowski SQL For Busy Professionals: How to Master SQL Without Quitting Your Day Job Learning SQL can boost your career without turning your life upside down. No need to sacrifice your weekends or evenings—in this guide, I’ll show you how to build SQL skills in small, manageable steps that fit right into your busy day. For many professionals juggling meetings, deadlines, and family commitments, learning SQL might seem impossible. But here's the good news: you don't need to quit your day job or find endless free time—you just need smart strategies that fit into your daily routine. Read more 17 Dec 2024 Jakub Romanowski Rookie SQL Mistakes That Can Cost You Time As a junior data analyst, learning SQL can be both rewarding and challenging. It allows you to understand data and extract valuable insights, but common SQL mistakes often become frustrating barriers. In this guide, I’ve compiled the most frequent rookie SQL mistakes and how to avoid them, to help you save time and improve your skills more effectively. Initially, learning SQL was often frustrating due to minor errors that took hours to debug. Read more 11 Dec 2024 Jakub Romanowski Netflix Wrapped With SQL: Let’s Dive Into Your Streaming Year In this article, we’re turning your Netflix viewing history into your very own Netflix Wrapped, using SQL. Ever wondered what show you binged the hardest or which day you couldn’t resist pressing play? I’ll show you how to pull all those fun insights. Let’s dig in! Hey! The year’s almost over, so why not take a fun look back at your Netflix habits? Remember all those weekends you said you’d " Read more 10 Dec 2024 Jakub Romanowski Make Your Own Spotify Wrapped With SQL (Because Why Not?) Everybody’s showing off their Spotify Wrapped on social media, but what if you could make your own and see everything Spotify leaves out? With a bit of SQL, you can dig into your listening habits, see your true top tracks, and even find out how much time you spent looping that guilty pleasure song. It’s easy, fun, and a great way to flex your SQL skills. In this article I will show you how. Read more 4 Dec 2024 Jakub Romanowski Top U.S. Cities for SQL Developers to Earn the Most in 2025 If you’re an SQL developer looking to build your career in the US in 2025 this guide has you covered. We’ll cover the top cities to make the most of your SQL salary. New to the field, switching careers or looking to move up? Knowing where to focus can make a big difference to your salary and career progression. Understanding how location affects your SQL salary is key to making smart career decisions. Read more «« « 1 2 3 … 12 » »»