-- electronic postcard create sequence postcard_seq; create sequence postcard_image_seq; create table postcard_images ( card_image_id integer primary key, image oid not null, mime_type varchar(100), title varchar(1000), description varchar(4000) ); create table postcards ( card_id integer primary key, card_picture references postcard_images, recipient varchar(1000), sender varchar(1000), message varchar(4000), pickup_code varchar(1000), picked_up date );