数据库性能优化sql 的相关内容

文章 2021-12-31 来自：开发者社区

MySQL数据库性能优化由浅入深（表设计、慢查询、SQL索引优化、Explain分析、Show Profile分析、配置优化）

文章目录0 SQL性能分析1 表的设计合理化1.1 为什么需要范式1.2 三范式原理1.3 什么样的表才满足三范式2 慢查询2.1 慢查询介绍2.2 慢查询步骤3 添加适当索引3.1 索引是什么3.2 索引优劣势3.3 索引分类和建索引命令语句3.4 创建索引情况分析4 Explain分析（重点）4.1 Explain介绍4.2 id（表的读取顺序&#x...

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更新时间 2024-07-11 10:27:03

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