2.2 建库建表：一份能直接跑的 MySQL 脚本 数据库选 MySQL 8.0，字符集用 utf8mb4，排序规则 utf8mb4_general_ci。很多同学在 Windows 上装完 MySQL 忘了改字符集，插入中文菜品名变成问号，这是血泪经验里排第一的坑。下面这份脚本可以直接在 Navicat 或命令行里执行，建库、建表、插初始数据一次到位。

This adapter saves state history into SQL DB. Supports PostgreSQL, mysql, Microsoft SQL Server and sqlite. You can leave port 0 if the default port is desired. This ...

Data analysis is a process of inspecting, cleansing, transforming, and modeling data with the goal of discovering useful information, informing conclusions, and supporting decision-making.