From de9e098d0c136ac2b3df3bfbe8bfb168160fe6c5 Mon Sep 17 00:00:00 2001
From: fikretellek <fikretellek@icloud.com>
Date: Tue, 28 May 2024 00:16:59 +0100
Subject: [PATCH] week3 done

---
 E-Commerce/readme.md | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/E-Commerce/readme.md b/E-Commerce/readme.md
index 37580cce..ba3e2835 100644
--- a/E-Commerce/readme.md
+++ b/E-Commerce/readme.md
@@ -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
+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