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Artem2020-05-10 18:49:41
MySQL
Artem, 2020-05-10 18:49:41

How to calculate the sum of certain values ​​from a column?

Guys, how to calculate the sum of values ​​from the 'val' column that have the same "id" in the 'stars_id' column and display it in the form?
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Rsa97, 2020-05-10
@shylov

GROUP BY, SUM()

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