1
You can do as follows using the Internet:
SELECT P.SKU, P.NAME, SUM(OP.UNIT_VALUE) FROM ORDER_PRODUCT OP
INNER JOIN ORDER O ON O.ID = OP.ORDER_ID
INNER JOIN PRODUCTS P ON P.ID = OP.PRODUCT_ID
GROUP BY P.SKU, P.NAME
Note: I didn’t use any field of the Order table, but I think you can understand how to do it.