https://answer.freetools.me/tags/%E4%BA%8B%E5%8A%A1%E9%9A%94%E7%A6%BB/ Recent content in 事务隔离 on Answer Hugo -- 0.152.2 zh-cn Sat, 07 Mar 2026 01:56:28 +0800 https://answer.freetools.me/%E6%95%B0%E6%8D%AE%E5%BA%93%E6%AD%BB%E9%94%81%E4%B8%BA%E4%BD%95%E5%A6%82%E6%AD%A4%E9%9A%BE%E4%BB%A5%E6%A0%B9%E9%99%A4%E4%BB%8E%E6%A3%80%E6%B5%8B%E7%AE%97%E6%B3%95%E5%88%B0%E9%A2%84%E9%98%B2%E7%AD%96%E7%95%A5%E7%9A%84%E4%BA%94%E5%8D%81%E5%B9%B4%E5%8D%9A%E5%BC%88/ Sat, 07 Mar 2026 01:56:28 +0800 https://answer.freetools.me/%E6%95%B0%E6%8D%AE%E5%BA%93%E6%AD%BB%E9%94%81%E4%B8%BA%E4%BD%95%E5%A6%82%E6%AD%A4%E9%9A%BE%E4%BB%A5%E6%A0%B9%E9%99%A4%E4%BB%8E%E6%A3%80%E6%B5%8B%E7%AE%97%E6%B3%95%E5%88%B0%E9%A2%84%E9%98%B2%E7%AD%96%E7%95%A5%E7%9A%84%E4%BA%94%E5%8D%81%E5%B9%B4%E5%8D%9A%E5%BC%88/ 深入剖析数据库死锁检测与预防的五十年技术演进：从Coffman四个必要条件到Wait-for Graph检测算法，从Wait-Die/Wound-Wait预防策略到MySQL、PostgreSQL、SQL Server的实现差异。基于IEEE/ACM论文、官方文档和真实生产案例，系统梳理死锁检测的开销与权衡，以及应用层如何设计才能从根本上避免死锁。 https://answer.freetools.me/%E4%BA%8B%E5%8A%A1%E9%9A%94%E7%A6%BB%E7%BA%A7%E5%88%AB%E4%B8%BA%E4%BD%95%E6%88%90%E4%B8%BA%E6%95%B0%E6%8D%AE%E5%BA%93%E6%9C%80%E8%A2%AB%E8%AF%AF%E8%A7%A3%E7%9A%84%E6%A6%82%E5%BF%B5/ Fri, 06 Mar 2026 03:43:32 +0800 https://answer.freetools.me/%E4%BA%8B%E5%8A%A1%E9%9A%94%E7%A6%BB%E7%BA%A7%E5%88%AB%E4%B8%BA%E4%BD%95%E6%88%90%E4%B8%BA%E6%95%B0%E6%8D%AE%E5%BA%93%E6%9C%80%E8%A2%AB%E8%AF%AF%E8%A7%A3%E7%9A%84%E6%A6%82%E5%BF%B5/ 深入剖析 ANSI SQL 事务隔离级别的定义缺陷、MVCC 实现差异、快照隔离与写倾斜异常，揭示为什么"可重复读"下仍可能出现数据不一致问题。 https://answer.freetools.me/%E5%86%99%E5%80%BE%E6%96%9C%E5%BC%82%E5%B8%B8%E4%B8%BA%E4%BB%80%E4%B9%88%E5%8F%AF%E9%87%8D%E5%A4%8D%E8%AF%BB%E9%9A%94%E7%A6%BB%E7%BA%A7%E5%88%AB%E8%BF%98%E6%98%AF%E4%BC%9A%E5%87%BA%E7%8E%B0%E4%B8%80%E8%87%B4%E6%80%A7%E9%97%AE%E9%A2%98/ Wed, 04 Mar 2026 19:02:56 +0800 https://answer.freetools.me/%E5%86%99%E5%80%BE%E6%96%9C%E5%BC%82%E5%B8%B8%E4%B8%BA%E4%BB%80%E4%B9%88%E5%8F%AF%E9%87%8D%E5%A4%8D%E8%AF%BB%E9%9A%94%E7%A6%BB%E7%BA%A7%E5%88%AB%E8%BF%98%E6%98%AF%E4%BC%9A%E5%87%BA%E7%8E%B0%E4%B8%80%E8%87%B4%E6%80%A7%E9%97%AE%E9%A2%98/ 深入解析数据库事务中的写倾斜异常：从 ANSI SQL 隔离级别的定义缺陷，到 MVCC 快照隔离为何无法防止写倾斜的技术根源。对比 MySQL next-key lock 与 PostgreSQL SSI 的不同处理方式，提供显式锁定、乐观锁、触发器等多种工程解决方案，以及性能与正确性的权衡指南。