在 MySQL 8.0 后，性能差距进一步缩小，但从语义清晰度与灵活性来看，GROUP BY 在处理复杂业务场景时更胜一筹。选择使用哪种方式应根据具体应用场景而定。 在日常工作中，数据库查询操作无处不在，而处理数据中的重复项与分组汇总是非常常见的需求。

Thinking about learning Python? It’s a pretty popular language these days, and for good reason. It’s not super complicated, which is nice if you’re just starting out. We’ve put together a guide that ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Git isn’t hard to learn. And with a full-featured Git GUI tool such as GitKraken at your side, ...

Abstract: Simulation is an excellent tool to study real-life systems with uncertainty. Discrete-event simulation (DES) is a common simulation approach to model time-dependent and complex systems.

In this video, you'll learn how to build an AI agent from scratch in Python. I'll walk you through everything step-by-step. This will be very beginner friendly, and you'll learn how to make something ...

Imagine this: you’re in the middle of an important project, juggling deadlines, and collaborating with a team scattered across time zones. Suddenly, your computer crashes, and hours of work vanish in ...

So, you wanna try coding? That’s awesome! Python is a really good choice if you’re just starting out. It’s pretty straightforward to pick up, and there are tons of cool things you can do with it. The ...