18 Mar 2026 LearnSQL.com Team ETL vs ELT – What SQL Analysts Need to Know Modern data pipelines often rely on two approaches: ETL and ELT. The difference between them affects where data is cleaned, how transformations run, and how much SQL analysts participate in building the pipeline. Understanding this shift helps you see how raw data becomes analysis-ready tables in today’s data warehouses. If you work with data, you’ve likely seen the terms ETL and ELT. Both describe how data moves from a source system (such as an application database) to a destination like a data warehouse or dashboard. Read more 11 Mar 2026 LearnSQL.com Team How to Use AI to Learn SQL Faster – A Beginner’s Guide AI can explain SQL concepts, generate examples, and help debug queries. But using it well is what makes the difference. In this guide, you’ll learn how beginners can combine AI tools with structured courses and hands-on practice to learn SQL faster. You’ve decided to master SQL. You’ve watched the tutorials, bookmarked the cheat sheets, and finally typed your first SELECT *. At first, it feels like magic. Then, the honeymoon phase ends. Read more 4 Mar 2026 LearnSQL.com Team The Best SQL Projects to Start Your Portfolio this Spring (With Dataset Ideas) Want to turn your SQL skills into something you can actually show recruiters this spring? In this article, you’ll find practical SQL portfolio project ideas with real dataset suggestions, so you can move beyond exercises and build work that proves your skills – especially after finishing structured courses like those on LearnSQL.com. Spring is a natural reset point. In ancient Rome, spring marked the beginning of the year. The earliest Roman calendar started in March. Read more 25 Feb 2026 LearnSQL.com Team Your 90-Day Plan to Learn the SQL Skills Hiring Managers Want in 2026 Want to get job-ready SQL skills in three months? This 90-day plan shows you exactly what to learn, when to practice, and how to build projects that hiring managers care about. Follow the steps, stay consistent, and you’ll be ready for real SQL interview tasks in 2026. If you look at SQL job listings today, you’ll notice something interesting. The tools change, cloud platforms evolve, dashboards look different, but the core SQL skills employers expect stay surprisingly consistent. Read more 11 Feb 2026 LearnSQL.com Team The Perfect Match: SQL Joins Explained Not every invitation leads to a perfect match — and the same is true in SQL. This article explains SQL JOINs using a party guest list example, helping you understand how different JOIN types decide which records appear in the result. February is the month of love. Dating apps talk about matches, invitations go out for Valentine’s events, and everyone hopes things line up the right way. In SQL, we deal with matching all the time — just in a more practical way. Read more 4 Feb 2026 LearnSQL.com Team Building a Custom 'Recommendation Engine' in 10 Lines of SQL Recommendation engines don’t always start with AI or machine learning. In many cases, a few well-written SQL queries are enough to uncover products that customers frequently buy together. In this article, you’ll build a simple recommendation engine in about 10 lines of SQL using self-joins and aggregation. When you hear “recommendation engine,” you probably think of machine learning, Python notebooks, and complex AI models. That association has become so common that we often forget how many recommendations in real systems are built on much simpler foundations. Read more 13 Jan 2026 LearnSQL.com Team Window Functions Starter Pack for 2026: Learn One Advanced Skill per Week in January Window functions are one of the most practical SQL skills you can learn if you already know the basics and want to analyze data more effectively. They help you compare rows, build rankings, and track changes over time without complex subqueries. In this starter pack, you’ll learn one window function skill per week in January and turn an advanced topic into a usable, everyday SQL tool. Window functions are one of those SQL topics that often get labeled as “advanced” and then quietly postponed. Read more 7 Jan 2026 LearnSQL.com Team Learn SQL in 2026: A Practical Beginner Roadmap for the New Year SQL won’t go out of style in 2026 – and that’s exactly why it’s worth learning now. While tools come and go, SQL remains the backbone of analytics, business data, and modern automation. This practical roadmap shows how to learn SQL from scratch, course by course, without overwhelm or wasted effort. Why 2026 Is a Good Year to Start Learning SQL SQL continues to be one of the most reliable and practical skills you can learn. Read more 31 Dec 2025 LearnSQL.com Team SQL Certifications and Courses Worth Taking in 2026 SQL skills age well. Even with AI writing snippets of code, someone must still understand data, ask the right questions, and turn results into decisions. Here’s a clear look at which SQL courses and certifications are genuinely worth taking in 2026. Whether you’re starting your data journey or planning to level up your analytical skills this year, SQL is still one of the most valuable skills to invest in. It’s the language behind dashboards, reports, automations, AI-assisted insights, and almost every data-driven decision happening in business today. Read more 24 Dec 2025 LearnSQL.com Team How to Keep Up Your SQL Learning Habit During the Holidays Learning SQL during the holidays can feel stressful, especially if you’re preparing for a job change and worry that any break will set you back. The good news is that you don’t need long study sessions or perfect consistency. A lighter approach is enough to keep your SQL habit alive until January. For many people learning SQL, the goal is clear: find a new job, switch careers, or finally move into a more data-focused role. Read more «« « 1 2 3 … 10 » »»