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Editorial Team
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Asked: 2026-06-15T06:08:38+00:00

Okay, say that I have two columns, Person and Donation. With, for example, these

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Okay, say that I have two columns, Person and Donation. With, for example, these as rows:

+++++++++++++++
Fred | $1000 
Fred |  $500 
Bob  | $1000
Bob  | $7000
Sally|  $500
Joe  |  $100  
+++++++++++++++

How could I get it to display the following?

+++++++++++++++
Fred | $1500
Bob  | $8000
Sally|  $500
Joe  |  $100  
+++++++++++++++

In other words, how could I group together all the donations under a certain person, and sum them up? What would be an example query that would accomplish this? (If at all possible, in a general way, that does not involve individually naming the people in the select/sum clause)

Thanks!

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1 Answer

  1. Editorial Team

    When you use a GROUP BY clause with an aggregate function (like SUM) the aggregate is calculated for each group.

    SELECT Name, SUM(Donation) FROM Donations GROUP BY Name

    If you want to get more specific results, like those people with total donations more than $500, introduce a HAVING clause. This is sort of like a WHERE for aggregate results:

    SELECT Name, SUM(Donation) FROM Donations GROUP BY Name 
    HAVING SUM(Donation) > 500

    SQL Fiddle: http://sqlfiddle.com/#!2/2de84/1/0

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