yum install mysql 5.7

Posted 2020-09-25 x.radish

 

wget http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm

yum localinstall -y mysql57-community-release-el7-7.noarch.rpm

yum install -y mysql-community-server

systemctl start mysqld.service

grep \'temporary password\' /var/log/mysqld.log
用上面的密码登录mysql

SET PASSWORD = PASSWORD(\'your new password\');
ALTER USER \'root\'@\'localhost\' PASSWORD EXPIRE NEVER;

或者 update mysql.user set authentication_string=password(\'123qwe\') where user=\'root\' and Host = \'localhost\';

*特别提醒注意的一点是，新版的mysql下的user表中已经没有Password字段了而是将加密后的用户密码存储于authentication_string字段

 

mysql> flush privileges;

mysql> quit;

创建用户

//create user \'173\'@\'%\' identified by \'mima\' password expire never;
CREATE USER \'username\'@\'host\' IDENTIFIED BY \'password\'

查看用户
SELECT DISTINCT CONCAT(\'User: \'\'\',user,\'\'\'@\'\'\',host,\'\'\';\') AS query FROM mysql.user;

修改用户密码
set password for \'17sf\'@\'%\'=password(\'mima\');

//grant all privileges on dbname.* to \'173\'@\'%\';

GRANT ALL PRIVILEGES ON *.* TO \'root\'@\'%\' IDENTIFIED BY \'your password\' WITH GRANT OPTION;

 

 

 

 

 

yum remove mysql mysql-server mysql-libs compat-mysql51
rm -rf /var/lib/mysql
rm /etc/my.cnf
查看是否还有mysql软件：
rpm -qa|grep mysql
有的话继续删除