text: create table user
  (
  	user_id int auto_increment
  		primary key,
  	name varchar(20) null,
  	age int null,
  	email varchar(20) null,
  	gender char null,
  	avatar varchar(50) null,
  	detail text null,
  	level tinyint default 0 null,
  	adminCode tinyint(1) default 0 not null,
  	tel varchar(20) null,
  	birth datetime null
  );
  
  