To to get the sum of conditional aggregates in an Access form -


i have table tblbudget, contains
id   expensetype   year   month   amount
11     hardware      2017    sep    5000
11     software       2017    oct     2000
11     hardware      2016   jan     1000
12     software       2017   feb     1500

i need display expenses id, expensetype, year, month. hence created group query

select id,expensetype,year,month,sum (amount) sumofamount  tblbudget group id,expensetype,year,month

this query works fine, need sum total total amount @ bottom of screen.

on access form tried setting control source "=sum([amount])" gives me #error.
i guess due fact have sums of amount in datasheet. there way grand total in footer of form


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