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Completed Mock_SQL #62

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Completed Mock_SQL #62

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8 changes: 8 additions & 0 deletions Apples and Oranges.sql
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Original file line number Diff line number Diff line change
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WITH CTE AS(
SELECT sale_date, sold_num FROM Sales WHERE fruit = "apples" ORDER BY sale_date
),
ACTE AS(
SELECT sale_date, sold_num FROM Sales WHERE fruit = "oranges" ORDER BY sale_date
)

SELECT t.sale_date, t.sold_num - (SELECT t1.sold_num FROM ACTE t1 WHERE t.sale_date = t1.sale_date) AS 'diff' FROM CTE t
4 changes: 4 additions & 0 deletions Top Travellers.sql
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Original file line number Diff line number Diff line change
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WITH CTE AS(
SELECT u.name AS 'name', r.user_id AS 'user', r.distance AS 'dist' FROM Users u LEFT JOIN Rides r ON u.id = r.user_id
)
SELECT name, IFNULL(SUM(dist), 0) as 'travelled_distance' FROM CTE GROUP BY user ORDER BY travelled_distance DESC, name