资讯

51CTO7 天
如何优化一条SQL语句的性能？
几年来，我发现一个定律：所有SQL问题都是在凌晨三点爆发！ 今天抽丝剥茧，教你用架构师的思维给慢SQL开刀手术。 希望对你会有所帮助。 使用EXPLAIN查看SQL语句的执行计划，相当于给SQL拍了张X光。 下面是一个典型的SQL问题，它是某电商平台历史订单查询的SQL ...
GitHub28 天
SQL project analyzing pizza sales data using joins, aggregation, and window functions.
Total revenue and quantity sold Most ordered pizza types and categories Revenue trends over time (daily, monthly) Cumulative revenue using window functions Ranking top 3 pizza types in each category ...
From dot-com to dot-AI: How we can learn from the last tech transformation (and avoid ...
The AI winners won’t be the ones slapping “AI” on a landing page — they’ll be creating products enterprises can't live without.
Waco Tribune-Herald4 天
App Orchid Platform and Easy Answers(TM) Update Makes Your Data AI-Ready Faster
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瓜子二手车二面通过了，但没去。。。
这次我们来看看今年一位 Java 校招同学的瓜子二手车一二面的面经，两面都没有问算法，每一面的时长大概是 30 分钟，拷打的技术问题也不算多，不到 10 个。 可重入锁：Redisson ...
Cabana Catalogs14 天
You’re Using ChatGPT COMPLETELY Wrong! Here’s How to Beat 99% of Users
Master ChatGPT with these research-proven prompt engineering techniques photo by mikhail nilov The Hidden Power of Prompt ...