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- -- Exercise 1
- SELECT product_code, product_name, list_price, discount_percent
- FROM products
- ORDER BY list_price DESC;
-
- -- Exercise 2
- SELECT CONCAT(last_name, ', ', first_name) AS full_name
- FROM customers
- WHERE last_name >= 'M%'
- ORDER BY last_name ASC;
-
- -- Exercise 3
- SELECT product_name, list_price, date_added
- FROM products
- WHERE list_price > 500 AND list_price < 2000
- ORDER BY date_added DESC;
-
- -- Exercise 4
- SELECT product_name, list_price, discount_percent,
- ROUND((discount_percent/100) * list_price, 2) AS discount_amount,
- ROUND(list_price - (discount_percent/100) * list_price, 2) AS discount_price
- FROM products
- ORDER BY discount_price DESC
- LIMIT 5;
-
- -- Exercise 5
- SELECT item_id, item_price, discount_amount, quantity, item_price * quantity AS price_total,
- discount_amount * quantity AS discount_total, (item_price - discount_amount) * quantity AS item_total
- FROM order_items
- WHERE ((item_price - discount_amount) * quantity) > 500
- ORDER BY item_total DESC;
-
- -- Exercise 6
- SELECT order_id, order_date, ship_date
- FROM orders
- WHERE ship_date IS NULL;
-
- -- Exercise 7
- SELECT NOW() AS today_unformatted, date_format(NOW(), '%d-%b-%Y') AS today_formatted;
-
- -- Exercise 8
- SELECT 100 AS price, 0.07 AS tax_rate, 100 * 0.07 AS tax_amount, 100 + (100 * 0.07) AS total;
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