🔹 场景2：考勤打卡重复时间戳→ GROUP BY精准去重 🔹 场景3：采购清单重复物料→ 窗口函数标记保留最新 🔹 场景4：问卷调查重复提交→ 自连接查重逻辑 🔹 场景5：多表合并重复项→ UNION自动去重黑科技 场景1：销售表重复客户记录 → 1行DISTINCT搞定 痛点 ...

I don’t use Microsoft Excel all that often, so it remains a bit of a mystery to me. I can enter text and create graphs and that’s basically it. That’s why I’ve set myself a goal to learn one new Excel ...

Why is the language developers and DBAs use to organize data such a mess? Here are 13 reasons we wish we could quit SQL, even though we probably won't. For all its popularity and success, SQL is a ...

本书分为12章，每一章包含许多原则或准则，并通过举例的方式对原则进行解释说明。这些例子大多来自于实际案例，对九种SQL经典查询场景以及其性能影响讨论，非常便于实践，为你的实际工作提出了具体建议。本书适合SQL数据库开发者、软件架构师，也适合 ...

Led by Jeff Schwartz, the world's top basketball agent, Excel's NBA division represents the likes of Cade Cunningham, Nikola Jokic and Jamal Murray. Excel's baseball client list includes Clayton ...

If you use Microsoft Excel on a daily basis as a data analyst or number cruncher, learning how to use Excel’s advanced spreadsheet tools can significantly boost your productivity and efficiency in ...

Manage all AI prompts from one structured library with WinBuzzer Prompt Station. Use prompt-chains, prompts, text insertions with ChatGPT, Gemini, Claude, Grok, AI Studio, Mistral. With versioning, ...

Jon has been an author at Android Police since 2021. He primarily writes features and editorials covering the latest Android news, but occasionally reviews hardware and Android apps. His favorite ...

Blank rows can find their way into your worksheets through various means—but no matter how they get there, it’s a good idea to get rid of them. This ebook walks through five manual techniques for ...