SQL Case Files is a free interactive SQL game that teaches SQL through crime-solving challenges. Learn SQL online with hands-on puzzles, realistic datasets, SQL practice exercises, and a full ...

Learning SQL is a great move for anyone working with data, but actually getting good at it can feel tricky, especially if you don’t have a database handy. Luckily, there are tons of free places online ...

Getting good at SQL for interviews can feel like a puzzle. You know the basics, but putting them together in a way that impresses people is another thing entirely. Luckily, there are great tools out ...

What’s the right answer? What if there isn’t one and you need to create it? Or there is more than one and you need to select it? What if what you really should be asking is a different question? From ...

Can a simple daily practice truly restore our peace amidst the stress and chaos of modern life? One such practice is gratitude, a core principle of positive psychology that has garnered significant ...

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Seeking sports excellence? Follow the example of elite performers. Expert athletic skill isn’t something you’re born with and doesn’t randomly happen. The expertise of athletes—as well as singers, ...

Some treatments and procedures become routine despite lacking strong evidence to show that they’re beneficial. Recent studies have called a few into question. By Paula Span An older patient with ...

As the 2025 NFL season gets ready to kick off, teams around the league are busy locking in their rosters and practice squads. This season, the rules around practice squads have changed. While they are ...