NW6 | Hadika Malik | Module-Database | E-Commerce | Week 3

E-Commerce/readme.md

@@ -46,16 +46,51 @@ 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 ilike '%socks%';
 - [ ] List all the products which cost more than 100 showing product id, name, unit price, and supplier id
+        select p.id, p.product_name, pa.unit_price, s.supplier_name
+        from products p
+        join product_availability pa on p.id = pa.prod_id
+        join suppliers s on s.id = pa.supp_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 s.id = pa.supp_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, o.order_reference, o.order_date, p.product_name, s.supplier_name, oi.quantity
+        from orders o
+        join customers c on o.customer_id = c.id
+        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
+        join suppliers s on oi.supplier_id = s.id
+        order by c.name, o.order_reference, p.product_name;
 
 ## Acceptance Criteria
 
-- [ ] The `cyf_ecommerce` database is imported and set up correctly
-- [ ] The database schema is drawn correctly to visualize relationships between tables
-- [ ] The SQL queries retrieve the correct data according to the tasks listed above
-- [ ] The pull request with the answers to the tasks is opened on the `main` branch of the `E-Commerce` repository
+- [x] The `cyf_ecommerce` database is imported and set up correctly
+- [x] The database schema is drawn correctly to visualize relationships between tables
+- [x] The SQL queries retrieve the correct data according to the tasks listed above
+- [x] The pull request with the answers to the tasks is opened on the `main` branch of the `E-Commerce` repository