totn Access Functions

MS Access: DLast Function

This MSAccess tutorial explains how to use the Access DLast function with syntax and examples.

Description

The Microsoft Access DLast function returns the last value from an Access table (or domain).

Syntax

The syntax for the DLast function in MS Access is:

DLast ( expression, domain, [criteria]

Parameters or Arguments

expression
The field from which you want the last value.
domain
The set of records. This can be a table or a query name.
criteria
Optional. It is the WHERE clause to apply to the domain.

Returns

The DLast function returns any datatype such as a string, numeric, date, etc.

Applies To

The DLast function can be used in the following versions of Microsoft Access:

  • Access 2019, Access 2016, Access 2013, Access 2010, Access 2007, Access 2003, Access XP, Access 2000

Example

Let's look at how to use the DLast function in MS Access:

DLast("UnitPrice", "Order Details", "OrderID = 10248")

In this example, you would retrieve the last UnitPrice value in the Order Details table where the OrderID is 10248.

Example in VBA Code

The DLast function can be used in VBA code in Microsoft Access.

For example:

Dim LTotal As Currency

LTotal = DLast("UnitPrice", "Order Details", "OrderID = 10248")

In this example, the variable called LTotal would now contain the last UnitPrice from the Order Details table where the OrderID is 10248.

Example in SQL/Queries

You can also use the DLast function in a query in Microsoft Access.

For example:

Microsoft Access

In this query, we have used the DLast function as follows:

Expr1: DLast("UnitPrice","Order Details","OrderID = 10248")

This query will return the OrderID value from the Orders table. It will also return the last UnitPrice value from the Order Details table where the OrderID is equal to 10248. (NOTE: The Order Details table contains one record for each item ordered, so there can be more than one record for each OrderID). The results of the DLast function will be displayed in a column called Expr1. You can replace Expr1 with a column name that is more meaningful.

For example:

LastValue: DLast("UnitPrice","Order Details","OrderID = 10248")

The results would now be displayed in a column called LastValue. This example is just used for demonstration purposes to show how to use the DLast function and what it would return.

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