####### yum repository install #######
mysql yum repo http://repo.mysql.com/
wget http://repo.mysql.com/mysql57-community-release-el7-11.noarch.rpm
yum localinstall mysql57-community-release-el7-11.noarch.rpm
yum repolist all | grep mysql
####### mysql install #######
yum install mysql-community-server
systemctl start mysqld
systemctl enable mysqld
####### find password and login #######
grep 'temporary password' /var/log/mysqld.log
mysql -uroot -p
####### password update #######
alter user 'root'@'localhost' identified by '+P4ssword+';
or
set password for 'root'@'localhost'=password('+P4ssword+');
####### add user and grant privileges #######
create user 'myroot'@'%' identified by '+P4ssword+';
grant all privileges on *.* to 'myroot'@'%';
flush privileges;
or
grant select on *.* to 'myreader'@'%' identified by '+P4ssword+';
flush privileges;
####### my.cnf #######
[mysqld]
innodb_buffer_pool_size=512M
collation-server=utf8mb4_general_ci
init-connect='SET NAMES utf8mb4'
character-set-server=utf8mb4
skip-character-set-client-handshake
sql_mode="STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
bind-address=0.0.0.0
max_connections=500
[client]
default-character-set=utf8mb4
[mysql]
default-character-set=utf8mb4
systemctl restart mysqld
test_db-master（https://codeload.github.com/datacharmer/test_db/zip/master）
mysql -uroot -p -t < employees.sql