I have a union of two separate tables that are summed using a group by. I want a consolidated sum recognizing the...
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Table A x 2 x 1 y 1
Table B x 2 y 3 y 2
Here is the result that i desire --
x 5 y 6
My sql does not work
select colA, sum(colB) from A group by colA union select colA, sum(colB) from B group by colA
Instead of my desired results, I am getting duplicate x and y rows.
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