Linux中安装MySql5.7.21的步骤详解

#如果提示必须要修改密码才可以进行操作的话则执行下面操作

set password=password('新密码');

flush privileges;

UPDATE `mysql`.`user` SET `Host` = '%', `User` = 'root' WHERE (`Host` = 'localhost') AND (`User` = 'root');

#然后执行如下操作开启mysql服务，以及设置相关权限

cd /var/run/

mkdir mysqld

chmod 777 mysqld

cd mysqld

vim mysqld.pid

chmod 777 mysqld.pid

chown mysql:mysql mysqld.pid

/usr/local/mysql/support-files/mysql.server start

/usr/local/mysql/bin/mysql -uroot -p 你在上面看到的初始密码

# 以下是进入数据库之后的sql语句

 use mysql;

 UPDATE `mysql`.`user` SET `Host`='%', `User`='root', `Select_priv`='Y', `Insert_priv`='Y', `Update_priv`='Y', `Delete_priv`='Y', `Create_priv`='Y', `Drop_priv`='Y', `Reload_priv`='Y', `Shutdown_priv`='Y', `Process_priv`='Y', `File_priv`='Y', `Grant_priv`='Y', `References_priv`='Y', `Index_priv`='Y', `Alter_priv`='Y', `Show_db_priv`='Y', `Super_priv`='Y', `Create_tmp_table_priv`='Y', `Lock_tables_priv`='Y', `Execute_priv`='Y', `Repl_slave_priv`='Y', `Repl_client_priv`='Y', `Create_view_priv`='Y', `Show_view_priv`='Y', `Create_routine_priv`='Y', `Alter_routine_priv`='Y', `Create_user_priv`='Y', `Event_priv`='Y', `Trigger_priv`='Y', `Create_tablespace_priv`='Y', `ssl_type`='', `ssl_cipher`='', `x509_issuer`='', `x509_subject`='', `max_questions`='0', `max_updates`='0', `max_connections`='0', `max_user_connections`='0', `plugin`='mysql_native_password', `authentication_string`='*6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9', `password_expired`='N', `password_last_changed`='2017-11-20 12:41:07', `password_lifetime`=NULL, `account_locked`='N' WHERE (`User`='root');

 flush privileges;

cd /usr/local/mysql/support-files

cp mysql.server /etc/init.d/mysqld

chkconfig --add mysqld

su - mysql

service mysqld start/stop/restart

远程用户建立

grant all privileges on *.* to '新用户名'@'%' identified by '新密码';

flush privileges;

添加系统路径

vim /etc/profile

export PATH=/usr/local/mysql/bin:$PATH

source /etc/profile