How i select the sum of each row by quantity and group by cod?
id cod quantity
1 pinco 4
2 panco 3
3 panco 9
i want from that query:
pinco sum is 4
panco sum is 13
id cod quantity
1 pinco 4
2 panco 3
3 panco 9
i want from that query:
pinco sum is 4
panco sum is 13