/tags/mysql/ Recent content in Mysql on sincebyte Hugo en &copy; 2026 sincebyte Fri, 02 Sep 2022 17:17:09 +0800 /posts/mysql-%E4%BB%8E%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%88%B0%E6%89%A7%E8%A1%8C%E8%AE%A1%E5%88%92/ Fri, 02 Sep 2022 17:17:09 +0800 /posts/mysql-%E4%BB%8E%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%88%B0%E6%89%A7%E8%A1%8C%E8%AE%A1%E5%88%92/ <p>索引是 MySQL 查询性能的核心杠杆。理解索引在磁盘上如何存储、聚簇索引与二级索引的区别、多列索引的最左前缀规则，再结合 <strong>EXPLAIN</strong> 读懂执行计划，才能在开发中写出高效 SQL，也能在慢查询排查时快速定位问题。</p>