导出：

mysqldump -u UserName -p DatabaseName > DatabaseName.sql

导入：

mysql -u UserName -p DatabaseName < DatabaseName.sql

连接：mysql -u UserName -p
创建数据库：create database DatabaseName;
删除数据库：drop database DatabaseName;
查看数据库列表：show databases;
选择数据库：use DatabaseName;
显示表：show tables;
表结构：describe TabelName;
表数目：select count(*) from information_schema.tables where table_schema='DatabaseName';
查看权限：select * from mysql.user where user='UserName'\G
查看权限：show grants for UserName@host;
查询用户：select user,host from mysql.user;
授权所有权限：grant all privileges on DatabaseName.* to UserName@host identified by 'password';