1.从官网下载如下命令

mysql-5.7.21-1-macos10.13-x86_64.dmg

2.安装后从系统菜单(左上角苹果)->系统偏好设置

打开上图的mysql标识来启动/关闭mysql

3.这mysql版本已经没有my.cnf或default-my.cnf了

自己新建一个/etc/my.cnf,重启mysql服务后自动生效

4.mysql.cnf的配置(编码、非group字段返回等特性)。如下：

[mysqld]

character-set-server=utf8

init_connect='SET NAMES utf8

port = 3306

socket = /tmp/mysql.sock

skip-external-locking

key_buffer_size = 16M

max_allowed_packet = 1M

table_open_cache = 64

sort_buffer_size = 512K

net_buffer_length = 8K

read_buffer_size = 256K

read_rnd_buffer_size = 512K

myisam_sort_buffer_size = 8M

character-set-server=utf8

init_connect='SET NAMES utf8'

sql_mode=STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

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