安装MySQL
添加mysql源
[root@localhost ~]# rpm -ivh http://repo.mysql.com//mysql57-community-release-el7-7.noarch.rpm
安装mysql
[root@localhost ~]# yum -y install mysql-community-server
启动mysql、检查状态、设置为开机自启
[root@localhost ~]# systemctl start mysqld
[root@localhost ~]# systemctl status mysqld
[root@localhost ~]# systemctl enable mysqld
第一次启动mysql,会在日志文件中生成root用户的一个随机密码,使用下面命令查看该密码
[root@localhost ~]# grep 'temporary password' /var/log/mysqld.log
修改root用户密码
[root@localhost ~]# mysql -u root -p
Enter password:
mysql> alter user 'root'@'localhost' identified by 'p@$$w0rd';
创建数据库(数据库名为:test)
mysql> create database test;
使用test数据库
mysql> use crashcourse;
执行sql脚本(使用source命令)
mysql> source /root/MySQLCrashCourse/create.sql;
mysql> source /root/MySQLCrashCourse/populate.sql;
查看可用数据库的列表
mysql> show databases;
查看当前数据库内可用表的列表
mysql> show tables;
显示表列(表名:customers)
mysql> show columns from customers;
显示服务器错误或警告消息
mysql> show errors;
mysql> show warnings;
安全管理
不应该在日常的MySQL操作中使用root
获得所有账号列表
mysql> use mysql;
mysql> select user from user;
创建用户账号
mysql> create user test1 identified by 'p@$$w0rd';
重命名用户账号
mysql> rename user test1 to test2;
删除用户账号
mysql> drop user test;
查看用户账号权限
mysql> show grants for test;
给用户账号授予权限
mysql> grant select on crashcourse.* to test;
撤销用户权限
mysql> revoke select on crashcourse.* from test;
更改用户口令
set password for test = password('n3w p@$$w0rd');
设置自己的口令
set password = password('n3w p@$$w0rd');
汉语支持:
vi /etc/my.cnf
···
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
symbolic-links=0
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
character-set-server = utf8
collation-server = utf8_general_ci
[client]
default-character-set = utf8