1、MySQL官方社区版本下载：
MySQL 8.0 下载：
https://dev.mysql.com/downloads/mysql/
MySQL 5.0，5.1，5.5，5.6，5.7，8.0下载：
https://downloads.mysql.com/archives/community/
2、MySQL Percona版本下载：
Percona Server for MySQL 5.6 下载：
https://www.percona.com/downloads/Percona-Server-5.6/LATEST/
Percona Server for MySQL 5.7 下载：
https://www.percona.com/downloads/Percona-Server-5.7/LATEST/
Percona Server for MySQL 8.0 下载：
https://www.percona.com/downloads/Percona-Server-LATEST/
3、MariaDB下载
https://downloads.mariadb.org/
