1.增加用户组和用户
groupadd mysql
useradd -g mysql mysql

2.设置用户权限
chown -R mysql:mysql /var/lib/mysql

3.连接数据库
mysql -h 主机地址 -u 用户名 -p 用户密码

3.退出
exit

4.设置密码
mysqladmin -u 用户名 -p 旧密码 password 新密码

5.增加用户
grant 权限 on 数据库.* to 用户名@登录主机 identified by "密码"
例如:
grant select,insert,update,delete on *.* to xql@localhost Identified by "123456";
grant all privileges on *.* to xql@localhost Identified by "123456";

清除密码:
grant select,insert,update,delete on mydb.* to xql@localhost identified by "";

6.在mysql里面设密码
set password for ‘xql’@‘localhost’ = password(’123456′);

7.删除账户
drop user xql

8.从文本导入
load data infile "/home/xql/tmp/xxx.txt" into table T_xxx;

9.数据库的备份
mysqldump -uroot -p12345 name > name.sql

10.数据库的恢复
mysql -uroot -pffffff ultrax < 2.sql
                                                        

mysql常用操作