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approfir
Public
Edited
Jun 7, 2023
Fork of SQL Course: Session 4
10
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pizzeriaDB
SELECT row_number() over (partition by Category order by Launch) as "Row Number"
, *
FROM products
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pizzeriaDB
SELECT products.name
, products.size
, products.category
, count(distinct orders.id) as "numOrders"
, rank() over (partition by products.category order by count(distinct orders.id) DESC) as "orderRank"
FROM products
JOIN order_items
ON products.SKU = order_items.SKU
JOIN orders
ON order_items.orderId = orders.id
GROUP BY 1, 2, 3
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pizzeriaDB
Type SQL, then Shift-Enter. Ctrl-space for more options.

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pizzeriaDB
Type SQL, then Shift-Enter. Ctrl-space for more options.

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pizzeriaDB
Type SQL, then Shift-Enter. Ctrl-space for more options.

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pizzeriaDB
WITH newData AS (
SELECT orders.id
, products.*
FROM orders
LEFT
JOIN order_items
ON orders.id = order_items.orderId
LEFT
JOIN products
ON order_items.SKU = products.SKU
)

SELECT DISTINCT name
, Size
, count(distinct id)
FROM newData
WHERE Category = 'Vegetarian'
GROUP BY 1, 2
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pizzeriaDB
Type SQL, then Shift-Enter. Ctrl-space for more options.

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groceries
SELECT avg(amount) as avg_amount
FROM groceries
WHERE category = 'Fruits'
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