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queries #41

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72 changes: 71 additions & 1 deletion E-Commerce/readme.md
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Expand Up @@ -46,12 +46,82 @@ erDiagram
Write SQL queries to complete the following tasks:

- [ ] List all the products whose name contains the word "socks"
- [ ] List all the products which cost more than 100 showing product id, name, unit price, and supplier id

SELECT * FROM products where product_name LIKE '%socks%';
SELECT *
FROM products
WHERE product_name
LIKE '%socks%';

- [ ] List all the products which cost more than 100 showing product id, name, unit price, and supplier id
SELECT id,
product_name,
unit_price,
supp_id
FROM products
JOIN product_availability
ON products.id=product_availability.prod_id
WHERE unit_price > 100;


- [ ] List the 5 most expensive products
SELECT id,
product_name,
unit_price
FROM products
JOIN product_availability ON products.id=product_availability.prod_id
ORDER BY unit_price DESC
LIMIT 5;

- [ ] List all the products sold by suppliers based in the United Kingdom. The result should only contain the columns product_name and supplier_name

SELECT product_name,
supplier_name
FROM customers
JOIN suppliers ON customers.id = suppliers.id
JOIN products ON products.id = suppliers.id
WHERE suppliers.country = 'United Kingdom';

- [ ] List all orders, including order items, from customer named Hope Crosby
SELECT c.name AS customer_name,
p.product_name,
o.order_date,
o.order_reference,
oi.order_id,
oi.quantity
FROM customers c
JOIN orders o ON c.id = o.customer_id
JOIN order_items oi ON o.id = oi.order_id
JOIN products p ON oi.product_id = p.id
WHERE c.name = 'Hope Crosby';


- [ ] List all the products in the order ORD006. The result should only contain the columns product_name, unit_price, and quantity

SELECT p.product_name,
pa.unit_price,
oi.quantity
FROM orders o
JOIN order_items oi ON o.id = oi.order_id
JOIN product_availability pa ON oi.product_id = pa.prod_id
JOIN products p ON pa.prod_id = p.id
WHERE o.order_reference = '0RD006';


- [ ] List all the products with their supplier for all orders of all customers. The result should only contain the columns name (from customer), order_reference, order_date, product_name, supplier_name, and quantity
SELECT customers.name
order_reference,
orders.order_date,
products.product_name,
suppliers.supplier_name,
order_items.quantity
FROM customers
JOIN orders ON orders.customer_id = customers.id
JOIN order_items ON order_items.order_id = orders.id
JOIN products ON products.id = order_items.product_id
JOIN suppliers ON suppliers.id = order_items.supplier_id;



## Acceptance Criteria

Expand Down