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

A

Artem2020-05-10 18:49:41

MySQL

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

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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1 answer(s)

R

Rsa97, 2020-05-10
@shylov

GROUP BY, SUM()

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