 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;
 
 CREATE TABLE orders (
-  id INT NOT NULL AUTO_INCREMENT,
+  id INT NOT NULL AUTO_INCREMENT UNIQUE,
 
   userid INT NOT NULL,
   campaign_id INT NOT NULL,

) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=0;

CREATE TABLE batch_mails (
  id INT NOT NULL AUTO_INCREMENT,

  recipientCount INT NOT NULL,
  committeeOnly TINYINT NOT NULL,

) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=0;

CREATE TABLE clothing_sizes (
  id INT NOT NULL AUTO_INCREMENT UNIQUE,

  name VARCHAR(255) NOT NULL,
  description VARCHAR(255) NOT NULL,
