mysql create user with permissions and export

1：创建用户，付权限

C:\soft\mysql\MySQL Server 5.5\bin>mysql -u root -p
Enter password: ********
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.5.49 MySQL Community Server (GPL)

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> create user 'iot_user'@'%' identified by 'iot20131008';
Query OK, 0 rows affected (0.00 sec)

mysql>grant all on *.* to iot_user@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

2：导出sql

C:\Program Files\MySQL\MySQL Server 5.5\bin>mysqldump -u iot_user -p qeemdb>qeemdb.sql
Enter password: ***********

C:\Program Files\MySQL\MySQL Server 5.5\bin>