34

I am stuck here. I have row in Postgres like this:

id      amount
a       5000
a       1500
a       500
b       2000
b       1000
c       4000

How is the sql syntax to get result like this?

id      amount
a       7000
b       3000
c       4000
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1 Answer 1

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59 
SELECT id, SUM(amount) AS amount
FROM yourtable
GROUP BY id
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