In this tutorial, I will teach you how to use the aggregate function DSUM in Microsoft Access to add up all of the sales from the last 30 days and put that total in a text box on your Main Menu form for quick reference. DSUM is very similar to the DLOOKUP function that I've covered previously. To learn more about DSUM, visit
http://599CD.com/XSXI30
Use the DSUM Function to show Sales Totals in your Microsoft Access Databases access denied
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