query simple sum

[Roy]

how can i generate the 3 column

code quantity quantity Ac
1111 100 100
1112 200 300
1113 50 350

i need the sintax as well please

i try with a dsum, just can't get the arguments rigth

 

[JohnFol]

in a table, a query, on a form, in a text field. . . . . ????
Bit more info required..