Update task1.sql

sql/task1.sql

@@ -1,14 +1,53 @@
 -- Problem 1: Retrieve all products in the Sports category
 -- Write an SQL query to retrieve all products in a specific category.
 
+-- Select all columns from the 'Products' table for products in the 'Sports' category
+SELECT *
+FROM Products
+-- Specify the condition to filter products in the 'Sports' category (replace 'X' with the actual category_id)
+WHERE category_id = 'X';
+
+
 -- Problem 2: Retrieve the total number of orders for each user
 -- Write an SQL query to retrieve the total number of orders for each user.
 -- The result should include the user ID, username, and the total number of orders.
+-- Selecting the category ID, category name, and the total sales amount for the top 3 categories
+
+-- Select the user ID, username, and the count of orders for each user
+SELECT u.user_id, u.username, COUNT(o.order_id) AS total_orders
+FROM Users u
+-- Join the 'Orders' table to get order details
+JOIN Orders o ON u.user_id = o.user_id
+-- Group the results by user_id to count the total number of orders per user
+GROUP BY u.user_id, u.username;
+
 
 -- Problem 3: Retrieve the average rating for each product
 -- Write an SQL query to retrieve the average rating for each product.
 -- The result should include the product ID, product name, and the average rating.
 
+-- Select the product ID, product name, and the average rating of reviews for each product
+SELECT p.product_id, p.product_name, AVG(r.rating) AS average_rating
+FROM Products p
+-- Join the 'Reviews' table to get review details
+JOIN Reviews r ON p.product_id = r.product_id
+-- Group the results by product_id to calculate the average rating per product
+GROUP BY p.product_id, p.product_name;
+
+
 -- Problem 4: Retrieve the top 5 users with the highest total amount spent on orders
 -- Write an SQL query to retrieve the top 5 users with the highest total amount spent on orders.
 -- The result should include the user ID, username, and the total amount spent.
+
+-- Select the user ID, username, and the sum of total_amount from the 'Orders' table for each user
+SELECT u.user_id, u.username, SUM(o.total_amount) AS total_spent
+FROM Users u
+-- Join the 'Orders' table to get order details
+JOIN Orders o ON u.user_id = o.user_id
+-- Group the results by user_id to get the total spent per user
+GROUP BY u.user_id, u.username
+-- Order the results by total_spent in descending order to get the highest total amount spent at the top
+ORDER BY total_spent DESC
+-- Limit the results to the top 5 users
+LIMIT 5;
+