HelpDCount Function

You can use the DCount function to determine the number of records that are in a specified set of records (a domain). Use the DCount function in Visual Basic, a macro, a query expression, or a calculated control.

For example, you could use the DCount function in a module to return the number of records in an Orders table that correspond to orders placed on a particular date.

Syntax

DCount(expr, domain[, criteria])

The DCount function has the following arguments.

Argument Description
expr An expression that identifies the field for which you want to count records. It can be a string expression identifying a field in a table or query, or it can be an expression that performs a calculation on data in that field. In expr, you can include the name of a field in a table, a control on a form, a constant, or a function. If expr includes a function, it can be either built-in or user-defined, but not another domain aggregate or SQL aggregate function.
domain A string expression identifying the set of records that constitutes the domain. It can be a table name or a query name.
criteria An optional string expression used to restrict the range of data on which the DCount function is performed. For example, criteria is often equivalent to the WHERE clause in an SQL expression, without the word WHERE. If criteria is omitted, the DCount function evaluates expr against the entire domain. Any field that is included in criteria must also be a field in domain; otherwise the DCount function returns a Null.