You're staring at your assignment, and the clock is moving way too fast. You wrote your SQL queries, but when you run them, either nothing happens, or your professor's feedback comes back with red marks all over. "Incorrect output," "missing rows," "syntax error"—I've been there, and honestly, it's not just frustrating, it can feel totally unfair. The thing is, SQL looks simple, but it's packed with little traps, especially when you're learning. Most students lose points not because they're lazy, but because SQL is a bit sneaky about what it expects. I want to walk you through the mistakes that cost me points (and how you can avoid them), show you real examples, and give you the confidence to tackle that next database assignment without the dread. Why SQL Trips Up So Many Students When I first learned SQL, I thought it was just about asking questions to a database.…