mysql的骚操作：自增长的字段同时插入到另一个字段

如题

 insert into users(username,password) values((select auto_increment from information_schema.tables where table_schema ='mytest' and table_name='users'),'' );

 select * from information_schema.tables where table_schema ='mytest' and table_name='users';

 INSERT menu (id,name,url,parent_id,`order`) VALUES((select AUTO_INCREMENT from information_schema.tables where  table_name='menu'),'','','',`id`);

需要AUTO_INCREMENT表的权限，其他的地方还要考虑并发问题？

SQL来源：https://blog.csdn.net/boom_man/article/details/78126972