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January 22, 2024 10:14
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-- 1. Показать товары, средняя цена продажи которых | |
-- была больше 50 гривен | |
SELECT | |
Product.name AS 'product', | |
AVG(Sale.price) AS 'avg_sell_price' | |
FROM Product | |
JOIN Sale ON Product.id = Sale.id_product | |
GROUP BY Product.name | |
HAVING AVG(Sale.price) > 50 | |
-- 2. Вывести количество товаров каждой категории, | |
-- средняя цена поставки которых больше 100 гривен | |
SELECT | |
Category.name AS 'category', | |
COUNT(Product.name) AS 'quantity' | |
FROM Product | |
JOIN Category ON Category.id = Product.id_category | |
JOIN Delivery ON Product.id = Delivery.id_product | |
GROUP BY Category.name | |
HAVING AVG(Delivery.price) > 100 | |
-- 3. Показать информацию о наименьшей стоимости поставки товаров | |
-- за последний месяц для каждого поставщика. | |
-- Отсортировать стоимость по возрастанию | |
SELECT | |
Supplier.name AS 'supplier', | |
MIN(Delivery.price) AS 'min_delivery_price' | |
FROM Product | |
JOIN Delivery ON Product.id = Delivery.id_product | |
JOIN Supplier ON Supplier.id = Delivery.id_supplier | |
WHERE | |
Delivery.date_of_delivery BETWEEN | |
DATEADD(MONTH, -1, GETDATE()) AND GETDATE() | |
GROUP BY Supplier.name | |
ORDER BY MIN(Delivery.price) | |
-- 4. Показать информацию о производителе, | |
-- его полном адресе, и количестве товаров, которые он выпускает. | |
-- Общая стоимость продаж товаров каждого производителя | |
-- при этом должна быть от 500 до 20000 гривен | |
SELECT | |
Producer.name AS 'producer', | |
(Country.name + ', ' + Region.name + ', ' | |
+ City.name + ', ' + Address.street) AS 'full address', | |
COUNT(Product.name) AS 'product_quantity', | |
SUM(Sale.price) AS 'total_sale_price' | |
FROM Product | |
JOIN Producer ON Producer.id = Product.id_producer | |
JOIN Address ON Address.id = Producer.id_address | |
JOIN City ON City.id = Address.id_city | |
JOIN Region ON Region.id = City.id_region | |
JOIN Country ON Country.id = Region.id_country | |
JOIN Sale ON Product.id = Sale.id_product | |
GROUP BY | |
Producer.name, | |
(Country.name + ', ' + Region.name + ', ' | |
+ City.name + ', ' + Address.street) | |
HAVING SUM(Sale.price) BETWEEN 500 AND 20000 | |
-- 5. Показать количество товаров каждой категории, | |
-- при этом учитывая только те товары, | |
-- стоимость поставки которых превышала 400 гривен. | |
-- Условие: выведенная информация касается только трёх определённых поставщиков | |
SELECT | |
Category.name AS 'category', | |
COUNT(Product.name) AS 'quantity', | |
Supplier.name AS 'supplier', | |
Delivery.price AS 'delivery_price' | |
FROM Product | |
JOIN Category ON Category.id = Product.id_category | |
JOIN Delivery ON Product.id = Delivery.id_product | |
JOIN Supplier ON Supplier.id = Delivery.id_supplier | |
WHERE Supplier.name IN ('OOO Panky', 'eBay', 'OOO Kakie Ludi') | |
GROUP BY Category.name, Supplier.name, Delivery.price | |
HAVING SUM(Delivery.price) > 400 |
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