题目
yum install msyql mysql-server -yvim /etc/my.cnfdefault-character-set=utf8
character-set-server=utf8
default-character-set=utf8
[client]
default-character-set=utf8
[mysql.server]
default-character-set=utf8
[mysql]
default-character-set=utf8
service mysqld restart
mysql_secure_installation
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!
In order to log into MariaDB to secure it, we'll need the current
password for the root user. If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.
Enter current password for root (enter for none): 输入管理员原始密码，默认为空值，直接回车即可
OK, successfully used password, moving on...
Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.
Set root password? [Y/n] y（设置管理员密码）
New password: 输入新的密码
Re-enter new password: 再次输入密码
Password updated successfully!
Reloading privilege tables..
... Success!
By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.
Remove anonymous users? [Y/n] y（删除匿名账户）
... Success!
Normally, root should only be allowed to connect from 'localhost'. This
ensures that someone cannot guess at the root password from the network.
Disallow root login remotely? [Y/n] y（禁止管理员从远程登录）
... Success!
By default, MariaDB comes with a database named 'test' that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.
Remove test database and access to it? [Y/n] y（删除测试数据库及其访问权限）
- Dropping test database...
... Success!
- Removing privileges on test database...
... Success!
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now? [Y/n] y（刷新授权表，让初始化后的设定立即生效）
... Success!
Cleaning up...
All done! If you've completed all of the above steps, your MariaDB
installation should now be secure.
Thanks for using MariaDB!
mysql -uroot -p1 (1是我重新创建的密码)
create database myDB;
use myDB;
create table baseinfo (studetID int primary key,name varchar(10),sex char(1) default 'M',birthday date,school char(20));
describe baseinfo;
insert into baseinfo(stundentID,name,sex,birthday,school) values('1','一','M','2000-1-1','武汉');
select * form baseinfo;
quit;
Bye
mkdir /www/a.txt
mysql -uroot -p1
use myDB;
load data local infile '/www/a.txt' into table baseinfo;
select * from baseinfo;
quit;
Bye
mysqldump -uroot -p1 myDB > /root/mysql.sql