text: DROP TABLE IF EXISTS customer;
  
  CREATE TABLE customer(
  	id bigint(20) NOT NULL auto_increment PRIMARY KEY,
  	name varchar(255) NOT NULL,
  	gender char(2) DEFAULT 'M',
      age int(10),
  	birthday date,
  	salary decimal(36,2),
  	is_active boolean,
  	description text,
  	created_at timestamp,
  	updated_at timestamp NOT NULL
  ) ENGINE=InnoDB DEFAULT CHARSET=utf8;