<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>数据库 on Song Kai's Blog</title><link>https://myblog-43r.pages.dev/tags/%E6%95%B0%E6%8D%AE%E5%BA%93/</link><description>Recent content in 数据库 on Song Kai's Blog</description><generator>Hugo</generator><language>zh-cn</language><lastBuildDate>Wed, 30 Sep 2026 09:00:00 +0800</lastBuildDate><atom:link href="https://myblog-43r.pages.dev/tags/%E6%95%B0%E6%8D%AE%E5%BA%93/index.xml" rel="self" type="application/rss+xml"/><item><title>分布式事务：从原理、开源实现到性能取舍</title><link>https://myblog-43r.pages.dev/posts/distributed-transactions/</link><pubDate>Wed, 30 Sep 2026 09:00:00 +0800</pubDate><guid>https://myblog-43r.pages.dev/posts/distributed-transactions/</guid><description>用下单、库存与支付讲清 2PC、TCC、Saga 和 Outbox，结合 Seata、DTM、Debezium 示例与论文实测，理解分布式事务的正确性、恢复和性能成本。</description></item><item><title>B+ 树与 LSM 树：读写方式与性能取舍</title><link>https://myblog-43r.pages.dev/posts/lsm-vs-btree/</link><pubDate>Thu, 24 Sep 2026 21:46:49 +0800</pubDate><guid>https://myblog-43r.pages.dev/posts/lsm-vs-btree/</guid><description>从一次记录更新理解 B+ 树与 LSM 树的读写路径、归并成本，以及它们在并发和空间上的取舍。</description></item><item><title>MySQL max_prepared_stmt_count：一个容易被忽略的实例级上限</title><link>https://myblog-43r.pages.dev/posts/mysql-max-prepared-stmt-count/</link><pubDate>Mon, 14 Sep 2026 00:00:00 +0800</pubDate><guid>https://myblog-43r.pages.dev/posts/mysql-max-prepared-stmt-count/</guid><description>理解 max_prepared_stmt_count 的作用、连接池带来的数量放大，以及 Error 1461 的排查和容量规划。</description></item></channel></rss>