Query to sum over two fields

Dear all,

I'm not sure how to create query to sum over two fields.  If the dist_no and i_datatime is the same sum the fields total_dollar_loss, total_ha and appliance_count.

i.e. instead of

02  2002/01/02  0  2  3
02  2002/01/02  1  0  5

the output should produce:

02  2002/01/02  1  2  8

 
SELECT s.dist_no, Format(s.i_datetime,"yyyy/mm/dd") AS Period, Sum(s.total_dollar_loss) AS TotDollarLoss, Sum(s.total_ha) AS TotHectare, Sum(s.appliance_count) AS TotAppCount INTO DailyTotalTable
FROM DataResults AS s
GROUP BY s.dist_no, Format(s.i_datetime,"yyyy/mm/dd");

Thanks