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NW6 | Fikret Ellek | Module-Database | E-Commerce | Week 3 #171

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NW6 | Fikret Ellek | Module-Database | E-Commerce | Week 3 #171

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36 changes: 36 additions & 0 deletions E-Commerce/readme.md
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Expand Up @@ -46,12 +46,48 @@ erDiagram
Write SQL queries to complete the following tasks:

- [ ] List all the products whose name contains the word "socks"
<!-- SELECT product_name
FROM products
WHERE product_name ILIKE '%socks%'; -->
- [ ] List all the products which cost more than 100 showing product id, name, unit price, and supplier id
<!-- SELECT p.id AS product_id, p.product_name, pa.unit_price, pa.supp_id AS supplier_id
FROM products p
JOIN product_availability pa ON p.id = pa.prod_id
WHERE pa.unit_price > 100; -->
- [ ] List the 5 most expensive products
<!-- SELECT p.id AS product_id, p.product_name, pa.unit_price
FROM products p
JOIN product_availability pa ON p.id = pa.prod_id
ORDER BY pa.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 p.product_name, s.supplier_name
FROM products p
JOIN product_availability pa ON p.id = pa.prod_id
JOIN suppliers s ON pa.supp_id = s.id
WHERE s.country = 'United Kingdom'; -->
- [ ] List all orders, including order items, from customer named Hope Crosby
<!-- SELECT o.id AS order_id, o.order_date, o.order_reference, oi.product_id, oi.supplier_id, oi.quantity
FROM orders o
JOIN order_items oi ON o.id = oi.order_id
JOIN customers c ON o.customer_id = c.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 products p ON oi.product_id = p.id
JOIN product_availability pa ON oi.product_id = pa.prod_id AND oi.supplier_id = pa.supp_id
WHERE o.order_reference = 'ORD006'; -->
- [ ] 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
<!-- product_name, supplier_name, and quantity
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Seems like you have missed an extra line here as this is not part of the query. The query itself seems to be ok.

SELECT c.name AS customer_name, o.order_reference, o.order_date, p.product_name, s.supplier_name, 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
JOIN suppliers s ON oi.supplier_id = s.id
ORDER BY c.name, o.order_reference; -->

## Acceptance Criteria

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