I have two different product_id with multiple keywords per each. Following statement is not working:
SELECT distinct product_id, COUNT(distinct keyword) as keyword_sum FROM data;
Currently result looks like this:
product_id keyword_sum
2 47
Desired result would look like this:
product_id keyword_sum
2 26
3 21
Any help much appreciated!
Group by the column you want to be unique and then you can use aggregate functions like count
on each element of the group.
SELECT product_id, COUNT(distinct keyword) as keyword_sum
FROM data
GROUP BY product_id
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