Question

I have a table with some data similar to this:

col1 | col2
-----------
val1    1
val1    5
val1    7
val2    3
val2    1
val2    4
val3    8

What I would like is a query to produce something like this:

col1 | sum
----------
val1   13
val2   8
val3   8

I’ve tried doing this with complicated subqueries, but nothing is quite panning out. I think I may be overthinking it.

Answer 1

This should be all you need. This uses the aggregate SUM with a GROUP BY.

SELECT col1, SUM(col2)
FROM unicorns
GROUP BY col1