London9-Mohammad Sefidgar-E-Commerce Database

E-Commerce/readme.md

@@ -15,7 +15,7 @@ In this project, you will work with an e-commerce database. The database has pro
 To prepare your environment, open a terminal and create a new database called `cyf_ecommerce`:
 
 ```sql
-createdb cyf_ecommerce
+createdb cyf_ecommerce;
 ```
 
 Import the file [`cyf_ecommerce.sql`](./cyf_ecommerce.sql) in your newly created database:
@@ -46,12 +46,52 @@ erDiagram
 Write SQL queries to complete the following tasks:
 
 - [ ] List all the products whose name contains the word "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 products.id,products.product_name,product_availability.unit_price,product_availability.supp_id
+      FROM products
+      INNER JOIN order_items ON order_items.product_id = products.id
+      INNER JOIN product_availability ON product_availability.prod_id = products.id
+      WHERE product_availability.unit_price > 100;
+
 - [ ] List the 5 most expensive products
+      SELECT \* FROM product_availability
+      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 p.product_name, s.supplier_name
+FROM products p
+JOIN order_items ON p.id = order_items.product_id
+JOIN suppliers s ON s.id = order_items.supplier_id
+WHERE s.country = 'United Kingdom';
+
 - [ ] List all orders, including order items, from customer named Hope Crosby
+      SELECT \*
+      FROM orders o
+      JOIN order_items ON o.id = order_items.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 as o
+      INNER JOIN order_items oi ON o.id = oi.order_id
+      INNER JOIN products as p ON oi.product_id = p.id
+      INNER JOIN product_availability as pa ON p.id = pa.prod_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