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## NoSQL入门
### NoSQL概述
### 主流NoSQL数据库
### Redis概述
### MongoDB概述

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## 关系型数据入门
### 关系型数据概述
1. 数据持久化。
2. 数据库发展史。
3. 关系型数据库特点。
4. E-R图。
5. 关系型数据库产品。
### MySQL简介
1. 安装和配置。
2. 常用命令。
### SQL详解
1. DDL
2. DML
3. DQL
### Python数据库编程
1. MySQLdb
2. PyMySQL
### ORM概述