Access DSUM Issue

问题

I am trying to use Dsum function in a query field to create subtotals of volume per each channel

Exp1: DSUM("[vol_tot]","[TBLNAME]","[CH]")

I have the following results:

CH Exp1
10 200,000
20 200,000
30 200,000

I was expecting:

CH Exp2
10 100,000
20 40,000
30 60,000

I'm trying to attain the same functionality as a SUMIF function in Excel...

回答1:

The filter criteria argument is incomplete. Try:

DSUM("[vol_tot]","[TBLNAME]","[CH]=" & [CH])

Domain argument functions can perform slowly in query and textbox. Consider building a report using its Grouping and Sorting feature and =Sum() in textbox.

来源：https://stackoverflow.com/questions/44009990/access-dsum-issue