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Multiply two SQL fields and SUM ?

Is it possible to multiple 2 SQL fields and then summarize them?

What I'm trying to do is calculate our top 100 spending customers. The fields I need to multiple are called qty * item_price.
Then I'm wanting to take those values and add up all the items by ID (which is the invoice ID ) and SUM them so that basically I can get a total value that each invoice has spent.

Is this  possible to write with SQL?
1 Solution
Aneesh RetnakaranDatabase AdministratorCommented:
Hi twentythree,
Yes you can do it

SELECT InvoiceID, SUM (Qty*Item_price) as tot
FROM urTable

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