Convert UPDATE with INNER JOIN from SQL for use in MySQL

Question

I\'d like to convert this for us in MySQL:

UPDATE product 
SET price = 12.95 
FROM product 
    INNER JOIN product_to_category ON product.product_id = produc         


        

Answer 1

UPDATE product 
SET price = 12.95 
WHERE product_id in
(SELECT product_id 
FROM product_to_category 
INNER JOIN category 
ON product_to_category.category_id = category.category_id 
WHERE category.parent_id = 39)