create table bursa(tip text, pmin int, pmax int, suma int);
insert into bursa values("FARA BURSA", 0, 399, NULL);
insert into bursa values("BURSA SOCIALA", 400, 899, 100);
insert into bursa values("BURSA DE STUDIU", 900, 1799, 150);
insert into bursa values("BURSA DE MERIT", 1800, 2499, 200);
insert into bursa values("BURSA DE EXCEPTIE", 2500, 9999, 300);
select
row_number() over(),
bursa.*
from bursa;