汇聚 V2EX、Hacker News、掘金等 IT 社区的热门讨论与精华内容。
r/technologyReddit科技这条外部内容围绕算法可视化、计算机科学教育、经典算法概念展示和交互式学习体验展开，适合关注相关实现、产品取舍和社区反馈的读者；外部来源：theatlantic.com。 外部正文摘录：A few years ago, Ken Schumacher was working for a technology company. Part of his job involved assessing potential hires: hopping on a Zoom call, giving an applicant an engineering test (kind of like a crossword puzzle with code instead of words), and going on “mute for an hour” as the applicant struggled through it. E…
r/technologyReddit科技这条外部内容围绕Spring Boot 数据库访问性能优化、SQL/索引/连接池/ORM 查询效率和系统瓶颈排查展开，适合关注相关实现、产品取舍和社区反馈的读者；外部来源：nbcnews.com。 外部正文摘录：to inform you that your employment with CBS is terminated for cause effective immediately,” Bilton added.
r/programmingReddit编程文章围绕 Spring Boot 场景下的数据库访问性能优化展开，重点关注 SQL 执行效率、索引设计、连接池配置、ORM 查询和并发增长后的系统瓶颈排查；外部来源：rushter.com。 外部正文摘录：Using them in ClickHouse can lead to unexpected and often unnoticeable performance degradation. When using null values in PostgreSQL, you rarely notice any difference. Internally, each row in PostgreSQL has a bitmap that indicates which columns are NULL.PostgreSQL is a row-oriented database, so when you read a row, you…
r/programmingReddit编程文章讨论 AI 平台 Credits 与 Tokens 的换算和成本理解，适合关注模型调用计费、额度管理和推理成本控制的读者；外部来源：blog.ammaraskar.com。 外部正文摘录：Just by clicking a link, it’s possible for an attacker to steal a GitHub token that can read and write to your repos, including private ones .com POSTing over an OAuth token to github. The token is not scoped to the particular repo you interacted with , meaning it has full access to every other repo that you have acces…
V2EX精华V2EX成都原文摘录：去年就看到宣传了几天，前几天突然就开始公示了，也没见过投票什么的。公示的文件漏洞百出，一看就是冲着维修基金去的。 业主群里全是反对意见。昨天晚上有热心业主搞了个反对意见收集，业委会的狗杂种上去就把签了字的单子给撕了，吵架吵俩小时，报警之后这些杂种连小区多少户人都不清楚。 求助如何让这玩意不能成立，12345 打过了，街道办可能是跟业委会穿一条裤子的，昨天来吵架的老头说了，自己儿子是街道办的。社区那边我昨天打电话一直推诿，说负责这事的人一会开会，一会跟领导汇报
V2EX精华V2EX程序员原文摘录：早上点击了更新，提示需要退出登录 refresh toekn 再次点击登录后，通过 MFA j 校验后 还是弹出了绑定手机号界面 还好 giffgaff 保命🙃 没有稳定手机号接码的，建议最好不要升级。 赶紧马不停蹄的去搞一张卡，最近 OpenAI 动作比较大。 以上，悉知。
Hacker NewsHacker News技术讨论文章围绕 Spring Boot 场景下的数据库访问性能优化展开，重点关注 SQL 执行效率、索引设计、连接池配置、ORM 查询和并发增长后的系统瓶颈排查；外部来源：law.stanford.edu。 外部正文摘录：A groundbreaking study led by Stanford Law School Professor Julian Nyarko reveals that law professors overwhelmingly prefer AI-generated answers to student questions over responses written by their fellow instructors—a finding that could reshape how legal education is delivered. The study, titled “Law Professors Prefer…
r/technologyReddit科技这条外部内容围绕Spring Boot 数据库访问性能优化、SQL/索引/连接池/ORM 查询效率和系统瓶颈排查展开，适合关注相关实现、产品取舍和社区反馈的读者；外部来源：wkrn.com。 外部正文摘录：(WKRN) — A new law signed by Gov. Bill Lee signed new legislation aims to protect utility ratepayers’ pockets when new data centers come to town. The law , sponsored by Sen. Brent Taylor (R-Memphis) and Rep.
Hacker News精华Hacker News技术讨论这条外部内容围绕Spring Boot 数据库访问性能优化、SQL/索引/连接池/ORM 查询效率和系统瓶颈排查展开，适合关注相关实现、产品取舍和社区反馈的读者；外部来源：microsoft.ai。 外部正文摘录：It outperforms Claude Haiku 4.5 with better price to performance across coding benchmarks. Coding models are most useful when they perform well in the same environment developers use every day.
Hacker News精华Hacker News技术讨论文章讨论 AI 平台 Credits 与 Tokens 的换算和成本理解，适合关注模型调用计费、额度管理和推理成本控制的读者；外部来源：blog.ammaraskar.com。 外部正文摘录：Just by clicking a link, it’s possible for an attacker to steal a GitHub token that can read and write to your repos, including private ones .com POSTing over an OAuth token to github. The token is not scoped to the particular repo you interacted with , meaning it has full access to every other repo that you have acces…
掘金精华掘金开发者原文摘录：想减脂，大方向无非是控制饮食、增加运动、保证睡眠；想增肌，也绕不开力量训练、蛋白质摄入和渐进超负荷。道理看起来都懂，但真正落到每天的生活里，很快就会变成另一回事。周末想补一次运动，又不知道该练什么。
掘金掘金开发者原文摘录：最近帮几个刚入行的朋友做技术指导，发现一个普遍现象：很多人从大学学完MySQL之后，就再也没碰过别的数据库了。2026年DB-Engines排名显示，PostgreSQL稳坐全球第四大数据库的宝座，仅次于Oracle、MySQL和SQL Server。有些小伙伴在工作中可能会说：“我用MySQL用了好几年了，感觉也挺好的啊，为什么要学PostgreSQL？” 我举个简单的例子：假如你的电商系统需要查询“2024年每个季度销售额排名前3的商品”，用MySQL写这个SQL起码20行起步，各种嵌套子查询、窗口函数疯狂套娃。
r/programmingReddit编程这条外部内容围绕企业 AI 许可、用量控制、推理成本和预算治理展开，适合关注相关实现、产品取舍和社区反馈的读者；外部来源：pizzalegacy.nl。 外部正文摘录：The new release of Pizza Legacy v0.0 introduces the ability to win the game, just like the original. How to win the game is a question I hadn't really considered when playing Pizza Tycoon (1994) in my childhood. I had fun just opening restaurants and designing pizzas, aided by a healthy dose of arms dealing to fund the…
r/technologyReddit科技这条外部内容围绕Spring Boot 数据库访问性能优化、SQL/索引/连接池/ORM 查询效率和系统瓶颈排查展开，适合关注相关实现、产品取舍和社区反馈的读者；外部来源：theintercept.com。 外部正文摘录：It acknowledges “a lack of specific information on plans to target AI data centers in the Philadelphia area,” but warns law enforcement that three planned data center facilities in the region could become targets of future protests.
r/programmingReddit编程这条外部内容围绕「外部技术热帖：Programming as Theory Building, Naur (1985). PDF-link」展开，后续外部正文摘录保留了原文关键段落，便于直接判断讨论价值；外部来源：pages.cs.wisc.edu。 外部正文摘录：Number of Pages: 14
r/technologyReddit科技这条外部内容围绕数字安全、隐私治理、基础设施采购和公共政策风险展开，适合关注相关实现、产品取舍和社区反馈的读者；外部来源：techradar.com。 外部正文摘录：Co-founder of Oracle, Larry Ellison, who serves as the cloud giant's CTO, has been part of the tech industry's furniture for decades now. Looking ahead, he projects the rise of technologies such as AI, drones, and additional monitoring systems. Ellison's warning came during an hour-long Q&A at an Oracle financial analy…
V2EX精华V2EX程序员原文摘录：今天发生一件事还挺让我感慨的，有个外国朋友发了个 issue 告诉我，他基于我的项目做了二次开发。 这件事感慨的地方在于前一段时间我司的项目里也用到了别的项目，当我向上级提议要不要在项目里添加别人的外链时，得到的回复是——“没啥必要”。我原本的意思是我们基于别人的项目做了二开（而且我们也是开源项目），至少要提到原始仓库，但他好像完全没这个意识。 出于礼貌，我最终还是在项目里提到对方的名字 叠甲：这里只是个例，不上升群体行为。
Hacker NewsHacker News技术讨论这条外部内容围绕企业 AI 许可、用量控制、推理成本和预算治理展开，适合关注相关实现、产品取舍和社区反馈的读者；外部来源：economist.com。 外部正文摘录：Subscribe * * * The Economist Pro * * * Log in * * * Menu Subscribe * * * The Economist Pro * * * Log in * * * Menu * * * * * * The world in brief Catch up on global daily news 1843 Compelling long reads The World Ahead 2026 Future-gazing analysis, predictions and speculation Podcasts Tune into captivating conversation…
r/technologyReddit科技文章围绕 Spring Boot 场景下的数据库访问性能优化展开，重点关注 SQL 执行效率、索引设计、连接池配置、ORM 查询和并发增长后的系统瓶颈排查；外部来源：techspot.com。 外部正文摘录：com Performing security verification This website uses a security service to protect against malicious bots.
Hacker NewsHacker News技术讨论这条外部内容围绕AI 平台额度、token 计费换算和推理成本理解展开，适合关注相关实现、产品取舍和社区反馈的读者；外部来源：github.com。 外部正文摘录：" Student: "My BPE tokenizer is slow. My runtime is currently O(n^2) where n is the number of tokens.
