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7.8

Group By Question

Asked by Lexun in Microsoft Access Database

Tags: sum

I have a table called InvoiceDetails that has the following fields:

InvoiceID
ProductID
Qty (quantity bought)
Price (product price)

I have a second table called CustPayments with the following fields:

InvoiceID
Date
Payment

What I'm trying to do in one query is to obtain the balance due for each InvoiceID.  So far I have the following:

SELECT InvoiceDetails.InvoiceID, Sum([Price]*[Qty]) AS [Total Due], CustPayments.Payment
FROM InvoiceDetails INNER JOIN CustPayments ON InvoiceDetails.InvoiceID = CustPayments.InvoiceID
GROUP BY InvoiceDetails.InvoiceID, CustPayments.Payment;

How do I subtract the payments made from the total due to get the balance due in this Group By query?

This is what is I want to happen, step-by-step:

1.  Sum the (Price * Qty) for each InvoiceDetails.InvoiceID
2.  Sum the Payment for each CustPayments.InvoiceID
3.  Subtract step 2 from step 1 for each InvoiceID to get the balance due
[+][-]02/17/04 01:28 PM, ID: 10386465Accepted Solution

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About this solution

Zone: Microsoft Access Database
Tags: sum
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Solution Provided By: Mike77
Participating Experts: 1
Solution Grade: A
 
[+][-]02/17/04 06:36 AM, ID: 10382471Expert Comment

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[+][-]02/17/04 10:53 AM, ID: 10385017Author Comment

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[+][-]02/17/04 11:41 AM, ID: 10385443Expert Comment

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[+][-]02/17/04 01:10 PM, ID: 10386285Author Comment

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[+][-]02/17/04 02:36 PM, ID: 10387103Author Comment

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