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MS Access

DCount

Using the DCOUNT Function

In this tutorial you will learn how to use the DCOUNT Function.

Take an example Table of Customers.

CustomerT
CustomerIDFirstNameLastNamePhoneCustomerSinceCreditLimitDaysGraceIsActive
1RichardRost716555777701/01/201210011True
2JoeSmith716555343401/03/19905005True
3SuzanJones562436514602/01/199815002False
4AlanWatson419389121217/05/2012503True
5AnnaPicore71323647905/05/200510204True
6RonaldSimms780746546804/04/1992502True
7DonaldBarker416441555501/03/19982505True
8BennySperduti716726726206/04/199916007False
9PeteSmith564559777704/04/20005003False
10BarbraPeters829282728831/12/2005501True
11JoeJones549546546601/06/20045003True
14PezzDispo26/09/201204True
16BobSmith04/10/201209True

In this example we want to find out how many Customers have a Credit Limit equal to 50 so we set the Field to * to choose any/all Fields in the Table, the Domain is CustomerT as this is the Table we are searching and the Criteria of "CreditLimit=50" as this is the Field name we are searching on.

The DCOUNT function returns an integer from a specified set of records (or domain) containing the number of records in that search.

=DCOUNT(Field, Domain, Criteria)

DCOUNT - Function Engine

Query

The results using a Query would be

	SELECT * FROM CustomerT WHERE CreditLimit = 50
	
tblNames
CustomerIDFirstNameLastNamePhoneCustomerSinceCreditLimitDaysGraceIsActive
4AlanWatson419389121217/05/2012503True
6RonaldSimms780746546804/04/1992502True
10BarbraPeters829282728831/12/2005501True

FORM

In a Form you could set the Default Value of a Textbox to

	=DCount("*", "CustomerT", "CreditLimit=50")
	
VBA

In a Form add a TEXTBOX control and rename it "txtDCount", then you could add the following in the Load Event.

	Private Sub Form_Load()
		txtDCount = DCount("*", "CustomerT", "CreditLimit=50")
	End Sub
	

Tips

See this FREE Tip on DCOUNT.

Search

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Alex Hedley (Avatar) By: Alex Hedley


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