授权一个管理员用户
mysql> grant all on *.* to adm_wy@'10.0.0.5%' identified by '123456' with grant option;
授权一个业务用户wp_user用户可以通过10.0.0.% 操作wordpress库下所有表
mysql> grant select ,insert ,update, delete on wordpress.* to wp_user@'10.0.0.%' identified by '123456';