NW6 | Rabia Avci | Databases Module | [TECH ED] E-Commerce | Week 3

E-Commerce/readme.md

@@ -45,14 +45,75 @@ erDiagram
 
 Write SQL queries to complete the following tasks:
 
-- [ ] List all the products whose name contains the word "socks"
+- [x] List all the products whose name contains the word "socks"
+
+SELECT \* 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.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,
+       o.order_date,
+       o.order_reference,
+       p.product_name,
+       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 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
 
+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;
+
 ## Acceptance Criteria
 
 - [ ] The `cyf_ecommerce` database is imported and set up correctly