Question : DSUM works from form but not query

I have a dsum field on my form like this...

=NZ(DSum("total","qrytimebydateOrders"),0)

which works fine, but i would like this used in the underlying query instead of directly from the form's field.

Here are some considerations...

- The query "qrytimebydateOrders", has criteria in the DATE field:
              Between [forms]![orders]![orderdate] And [forms]![orders]![shipdate]

- It also has: Like [forms]![orders]![project] in the PROJECT field

So, this query's information between 2 dates and whatever the project is in my form.


But, when i copy and paste: =NZ(DSum("total","qrytimebydateOrders"),0) into my query it doesnt show #error or #name, but it show's a value of 0 when it shouldnt be.

Answer : DSUM works from form but not query

The minute you place a calculated field in a query...  The recordset is not updateable

see the MSDN article at the following link
http://support.microsoft.com/default.aspx?scid=kb;en-us;328828

an exerpt from the above article
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When the query is calculating a sum, an average, a count, or other type of total on the values in a field, you cannot update data in the query. Also, you cannot update a query that references a field in the Update To row from a crosstab, a query, a select query, or a subquery that contains totals or aggregate functions.
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Take the calculation out of the query and place it on the form.