Question 1) 6 columns : date, customerid, product_quantity, sales, region, transaction_id. Which customer id bought maximum products? Tablename is questions.

(hint : get sales by multiplying product_quantity and price_per_item fields)

C date AN 3 B D E F customerid product_quantity price_per_item region transaction_id 10/9/2021 CC1 3 33 E 1 10/9/2021 CC1 4 22 A 2 12/26/2020 CC1 2 111 F 12/27/2020 CC2 1 22 G 4 12/28/2020 CC2 4 11000 G 5 12/29/2020 CC3 2 33 S 6 12/30/2020 CC3 1 22 S 7 10/9/2021 CC4 3 11000 E 8 10/10/2021 CC4 4 33 R 9 1 2 3 4 5 6 7 8 9 10 11 12 12 st o