insert into t_address (address_id, street, postal_code, city, country) values (-4, 'rue Montoyer, 15', '1000', 'Bruxelles', 'Belgium');
insert into t_building (building_id, name, address_id) values ((select seq_building.nextval from dual), 'Montoyer 15 "Black Pearl"', -4);

insert into t_address (address_id, street, postal_code, city, country) values (-3, 'rue de la Loi, 200', '1040', 'Bruxelles', 'Belgium');
insert into t_building (building_id, name, address_id) values ((select seq_building.nextval from dual), 'Berlaymont', -3);

insert into t_address (address_id, street, postal_code, city, country) values (-2, 'rue Breydel, 4', '1040', 'Bruxelles', 'Belgium');
insert into t_building (building_id, name, address_id) values ((select seq_building.nextval from dual), 'Belliard 232', -2);

insert into t_address (address_id, street, postal_code, city, country) values (-1, 'Place Rogier, 16', '1210', 'Saint-Josse', 'Belgium');
insert into t_building (building_id, name, address_id) values ((select seq_building.nextval from dual), 'Covent Garden 2', -1);