Linux安装MySQL的教程

/usr/local

mv mysql-5.7.37-linux-glibc2.12-x86_64 mysql57

groupadd mysql
useradd -r -g mysql mysql

sudo chown -R mysql:mysql /usr/local/mysql/data/
#赋予权限

vim /etc/my.cnf

[mysqld]
bind-address=0.0.0.0
port=3306
user=mysql
basedir=/usr/local/mysql/mysql
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
log-error=/usr/local/mysql/data/mysql.err
pid-file=/usr/local/mysql/data/mysql.pid
#character config
character_set_server=utf8mb4
symbolic-links=0
explicit_defaults_for_timestamp=true

cd bin/

./mysqld --defaults-file=/etc/my.cnf --basedir=/usr/local/mysql57/mysql/ --datadir=/usr/local/mysql57/data/ --user=mysql --initialize

sudo chmod 644 /etc/my.cnf

cat /usr/local/mysql57/data/mysql.err

cp /usr/local/mysql57/mysql/support-files/mysql.server /etc/init.d/mysql

service mysql start

./mysql -u root -p #bin目录下

SET PASSWORD = PASSWORD('123456'); 						#设置密码 
ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER; 	#修改密码 
FLUSH PRIVILEGES; 										#刷新mysql 

use mysql;
select user,host from user where user='root';

ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '密码';
flush privileges;

use mysql #访问mysql库
update user set host = '%' where user = 'root'; #使root能再任何host访问
FLUSH PRIVILEGES; #刷新