Superstore Database

/*Project: writing my own SQL code to query a Superstore Database*/

CREATE TABLE superstore (
    item_id INTEGER PRIMARY KEY,
    item_name TEXT,
    category TEXT,
    price DECIMAL(10, 2),
    stock_quantity INTEGER,
    average_rating DECIMAL(3, 2)
);

INSERT INTO superstore (item_id, item_name, category, price, stock_quantity, average_rating)
VALUES
    (1, 'Stainless Steel Cookware Set', 'Kitchen Supplies', 89.99, 50, 4.6),
    (2, 'Memory Foam Mattress', 'Furnishings', 499.99, 30, 4.8),
    (3, 'Smart LED TV', 'Electronics', 549.00, 20, 4.5),
    (4, 'Robot Vacuum Cleaner', 'Appliances', 199.50, 40, 4.3),
    (5, 'Wireless Bluetooth Speaker', 'Electronics', 39.99, 60, 4.2),
    (6, 'Non-Stick Baking Set', 'Kitchen Supplies', 29.95, 80, 4.4),
    (7, 'Cotton Bedding Set', 'Furnishings', 89.00, 25, 4.7),
    (8, 'Smart Home Security Camera', 'Electronics', 79.95, 15, 4.1),
    (9, 'Air Purifier', 'Appliances', 129.50, 35, 4.6),
    (10, 'Premium Coffee Maker', 'Kitchen Supplies', 79.99, 50, 4.9),
    (11, 'Ergonomic Office Chair', 'Furnishings', 189.00, 20, 4.5),
    (12, 'Wireless Earbuds', 'Electronics', 49.99, 75, 4.3),
    (13, 'Slow Cooker', 'Appliances', 49.95, 30, 4.7),
    (14, 'Cutlery Set', 'Kitchen Supplies', 34.50, 40, 4.4),
    (15, 'Cozy Throw Blanket', 'Furnishings', 24.99, 100, 4.2);


/*Use SELECT statement to order the items by prices.*/
SELECT item_name, price
FROM superstore
ORDER BY price desc;

/*Show statistic about item prices.*/
SELECT AVG(price)
FROM superstore;

/*Show statistic about the price for items in the category of "Kitchen Supplies".*/
SELECT MAX(price)
FROM superstore
WHERE category = "Kitchen Supplies"

/*Which category has the highest average rating?*/
SELECT category, MAX(average_rating)
FROM superstore;