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【mysql学习笔记20】mysql体系结构
2022-06-25 09:32:00 【yqs_281876918】
| 名称 | 职责 |
|---|---|
| 连接层 | 负责与客户端进行通信，包括连接处理、授权认证、安全处理 |
| 服务层 | 负责完成大多数的核心服务功能，如sql接口，并完成缓存的查询，sql语句的分析和优化，部分内置函数的执行。所有跨存储引擎的功能也在这一层实现，比如过程、函数等 |
| 引擎层 | 负责mysql中数据的存储和提取，服务层通过API与引擎层进行通信 |
| 存储层 | 将数据存储在文件系统里 |
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