Question

I have two tables: fund and items. Items has a field called fundID that is related to the ID of the fund table. Items also has a price field.

Here’s a simplified example of the two tables:

FUND
ID    fundName
1     maintenance
2     books
3     development
4     media


ITEMS
ID    price    fundID
1     $10        2
2     $20        4
3     $5         4
4     $8         1
5     $10        3
6     $12        4

I want to create a query that will give me the name of each fund and the sum of all prices for items that are connected to that fund through the fundID field. I have tried several methods such as having a correlated subquery within the SUM() and also within the WHERE, and I am getting errors.

If someone could point me in the right direction, I’d appreciate it.

Answer 1

Try this :

SELECT f.fundname,
       SUM(i.price)
FROM   fund f
       JOIN items i
         ON i.fundid = f.id
GROUP  BY f.fundname