Centos如何安裝mysql5.7

#進入local目錄 cd /usr/local/ #下載mysql wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz

tar -zxvf mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz mv mysql-5.7.17-linux-glibc2.5-x86_64 mysql mkdir data

groupadd mysql useradd -r -s /sbin/nologin -g mysql mysql -d /usr/local/mysql chown -R mysql.mysql /usr/local/mysql/

yum -y install libaio-devel ./bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/ cp -a ./support-files/my-default.cnf /etc/my.cnf cp -a ./support-files/mysql.server /etc/init.d/mysqld

#打開配置目錄 vi /etc/my.cnf #增加目錄配置 basedir=/usr/local/mysql/ datadir=/usr/local/mysql/data

#修改環境變量配置文件 vi /etc/profile #增加mysql全局變量，使service mysqld start可以在任意位置使用 export PATH=$PATH:/usr/local/mysql/bin #即時生效 source /etc/profile #啟動mysql service mysqld start

#mysql剛安裝完畢沒有密碼進入mysql命令行 mysql -uroot -p #查詢mysql用戶 select User, Host, Password FROM mysql.user; #修改root密碼 update mysql.user set password=password('root') where User="root"; #為root添加遠程權限 grant all privileges on *.* to 'root'@'%'identified by 'root' with grant option; #刷新權限 flush privileges;