说明:在MariaDB中删除了用户molewan后,业务又有需求重新建立一个名为molewan的用户
 
  1、查看数据库,发现已经没有molewan用户了
 
  MariaDB [mysql]> select user,host from mysql.user;
  +----------+------------+
  | user     | host       |
  +----------+------------+
  | molewan1 | 10.10.10.% |
  | admin    | localhost  |
  +----------+------------+
  2 rows in set (0.00 sec)
  2、 重建molewan的用户
 
  MariaDB [mysql]> create user molewan@'10.10.10.%' identified by 'molewan';
  Query OK, 0 rows affected (0.01 sec)
  MariaDB [mysql]> select user,host from mysql.user;
  +---------+------------+
  | user    | host       |
  +---------+------------+
  | molewan | 10.10.10.% |
  | admin   | localhost  |
  +---------+------------+
  2 rows in set (0.00 sec)
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