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[1 mark] Write a query to retrieve product information including: product_id, product_name,
product_price. Sort the results in descending order by price.
product_id
product_name
product_price
3
Laptop
50
2
Keyboard
1
Mouse
20
4
CPU
322
30
10
Picture 2.1
Question 3:
[1 mark] Write a query to retrieve the unique product_name of products that have been
purchased (appear in the Lineltem table).
Question 4:
+ 100%
product_name
Mouse
Picture 3.1
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