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From: Santi on 9 Apr 2010 14:49
What's the correct format to use DCount function in Access? I'm trying to add
sequential numbers to the results on a query that's based on several tables.
Does anyone know how to do that? In my query under design view I have a table
named “item” which from there I want the field named “No” to be the source to
determine how many records get counted.

Any help is greatly appreciated

From: John W. Vinson on 9 Apr 2010 15:41
On Fri, 9 Apr 2010 11:49:02 -0700, Santi <Santi(a)discussions.microsoft.com>
wrote:

>What�s the correct format to use DCount function in Access? I�m trying to add
>sequential numbers to the results on a query that�s based on several tables.
>Does anyone know how to do that? In my query under design view I have a table
>named �item� which from there I want the field named �No� to be the source to
>determine how many records get counted.
>
>Any help is greatly appreciated

I have no clue what the Item table is like or how it determines the count, nor
even what you're counting; but the syntax is pretty straightforward. DCount()
takes three arguments. The first can be just a text string "*" if you want to
count all records, or it can be a fieldname (in which case it will count all
non-NULL values of that field). The second argument is a string containing the
name of a table or query. The third, optional, argument is a text string
containing a valid SQL WHERE clause without the word WHERE, defining which
records in the table should be counted.

For example,

DCount("*", "PeopleTable", "[DOB] < #1/1/1950#")

will count the number of records in PeopleTable for which the DOB field is
prior to that date;

DCount("Zap", "qryAllZaps")

will count the number of records in qryAllZaps for which the field Zap is not
null.

--

John W. Vinson [MVP]
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