Ex1-8

How-to-retrieve-data-from-a-single-table.sql

@@ -1,22 +1,76 @@
+USE my_guitar_shop;
 
+-- 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;
 
 
+-- Exercise 3 --
 
+SELECT
+	product_name,
+	list_price,
+	date_added
+FROM products
+WHERE list_price BETWEEN '500' AND  '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 AS 'The Item Id',
+	item_price AS 'The Item price',
+	discount_amount AS 'The discount amount',
+	quantity AS 'The quantity',
+	(item_price * quantity) AS 'The price_total',
+	(discount_amount * quantity) AS 'The discount_total',
+	((item_price - discount_amount) * quantity) AS 'The item_total'
+FROM order_items
+WHERE ((item_price - discount_amount) * quantity) > 500
+ORDER BY ((item_price - discount_amount) * quantity) DESC;
 
+-- Exercise 6 -- 
+SELECT
+	order_id AS 'The order_id',
+    order_date AS 'The order_date',
+    ship_date AS 'The ship_date'
+FROM orders
+WHERE ship_date IS NULL;
 
+-- Exercie 7 --
 
+SELECT
+NOW() AS 'today_unformatted',
+date_format(NOW(), '%d-%b-%Y') AS 'today_formatted';
 
+-- Exercise 8--
+
+SELECT
+'100 dollars' AS Price,
+'.07 (7percent)' AS Tax_Rate,
+100 * 0.07 AS Tax_Amount,
+100 + (100 * 0.07) AS total;