1、卸載命令：# rpm -qa |grep -i mysql

# yum remove mysql-community mysql-community-server mysql-community-libs mysql-community-common

2、安裝：#?wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm

#?yum localinstall mysql57-community-release-el7-8.noarch.rpm

#?yum install mysql-community-server

3、啟動 ：#?systemctl start mysqld

重啟：#?systemctl restart mysqld

關閉：#?systemctl stop mysqld

設置開機自啟 # systemctl enable mysqld

# systemctl daemon-reload

4、查看默認密碼：#?grep ‘temporary password‘ /var/log/mysqld.log

注：可修改密碼策略(不然密碼需要包括大小寫、數字、特殊符號)

# vim??/etc/my.cnf

添加：validate_password = off

#?systemctl restart mysqld

5、登錄：#??mysql -uroot -p

修改密碼：mysql> set password for ‘root‘@‘localhost‘=password(‘123123‘);

添加遠程賬號：mysql> GRANT ALL PRIVILEGES ON *.* TO ‘home‘@‘%‘ IDENTIFIED BY ‘123123‘ WITH GRANT OPTION;

7、配置默認編碼utf-8：# vim?/etc/my.cnf

添加：? ?character_set_server=utf8

init_connect=‘SET NAMES utf8‘

8、默認配置文件路徑：

配置文件：/etc/my.cnf

日志文件：/var/log//var/log/mysqld.log

服務啟動腳本：/usr/lib/systemd/system/mysqld.service

socket文件：/var/run/mysqld/mysqld.pid

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總結

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