insert into dostawa values(1,10,100,1,'1996-11-26',30);
insert into dostawa values(2,10,110,2,'1996-11-26',20);
insert into dostawa values(3,12,100,1,'1996-11-27',100);
insert into dostawa values(4,11,150,3,'1996-11-27',200);
insert into dostawa values(5,10,100,1,'1996-11-27',5);