CentOS7安装mysql

1. 卸载默认安装的mariadb

yum search mysql
yum remove mariadb.x86_64

2. MySQL Community Downloads

Linux7 即 CentOS7

3. 安装：wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm

注：推荐在/tmp目录下进行

4. 本地安装yum源：yum localinstall mysql
5. 检测是否已经安装：yum search mysql
6. 找到对应的软件包，复制名称
7. 使用yum安装：yum install mysql-community-server.x86_64
8. 查看是否安装成功：ps -ef | grep mysql
9. 启动mysql

service mysqld start
service mysqld restart
service mysqld stop

10. 查找默认登录密码：cat /var/log/mysqld.log | grep password
11. 登录：mysql -uroot -p密码

注：推荐使用 mysql -uroot-p 回车之后再输入密码。因为使用history命令会看到你明文的密码

12. 修改密码：SET PASSWORD = PASSWORD(’ xxxx ');
13. 开通远程连接权限

use mysql;
show tables;
select * from user \G  # \G会格式化显示
select host, user from user \G
update user set host="%" where Host='localhost' and user = "root";
# 更新权限
flush privileges;
# 或者重启服务：service mysqld restart