DMax Function in Access
DMin Aggregate Function
Microsoft Access Min Max Domain Aggregate Functions
Finding the minimum and maximum values for a record set
is best done using the min and max function of a 'totaled' query. However, for completeness we include the examples of these functions here.
Note that the average aggregate function (Davg) has the same
format & syntax as the Dmin function and Dmax function examples below.
In our Employees table, query or view setup we have a list of employees and each of their current salaries along with their
Blue Claw Database Design is your premier source of Microsoft Access programming and database support. Both small business and department-level databases. Desktop installation as well as cloud/internet based solutions.
With our new partnership with Jay McCormick we have extensive programming support in SQL/Server database, MS Access software, Power BI applications, .Net web development, PHP, Excel & Outlook customization.
An unbound form or report field would have the following
Record Source to calculate the minimum value in the recordset:
To restrict the minimum to a specific department we add
the restriction clause:
If records are grouped by department on the form or
report you can use the recordset field name to restrict the scope of the
DMin and DMax functions:
=DMin("Salary","Employees","Department='" & Department &
Note that the field name department is bounded by single
quote marks ( ' ) and those quote marks have double quote marks delineating
them which makes figuring out the above example a little difficult.
Here's the same command that may be a little easier to read:
=DMin("Salary","Employees","Department=" & Chr(34) &
Department & Chr(34))
Rapping a chr(34) around the department recordset field
simply enclosed it in double quote marks.
The DMax functions are the same... just substitute DMin with