create table dish_order(
d_id int(3) not null references dish(d_id),
o_id int(3) not null references order_(o_id),
count_ int(3) not null
);
describe dish_order; insert into dish_order(d_id,o_id,count_) values (1,1,2);
insert into dish_order(d_id,o_id,count_) values (1,2,2);
insert into dish_order(d_id,o_id,count_) values (1,4,2);
insert into dish_order(d_id,o_id,count_) values (2,1,1);
insert into dish_order(d_id,o_id,count_) values (2,2,1);
insert into dish_order(d_id,o_id,count_) values (2,4,1);
insert into dish_order(d_id,o_id,count_) values (4,2,1);
insert into dish_order(d_id,o_id,count_) values (4,5,1);
insert into dish_order(d_id,o_id,count_) values (4,4,4);
insert into dish_order(d_id,o_id,count_) values (5,3,2);
insert into dish_order(d_id,o_id,count_) values (5,6,1);
select * from dish_order;