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Added solutions for mock 1 #52

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Added solutions for mock 1 #52

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4 changes: 4 additions & 0 deletions ApplesAndOranges.sql
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Original file line number Diff line number Diff line change
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Select a.sale_date, a.sold_num - b.sold_num as diff
from Sales a, Sales b
where a.fruit IN ('apples') and b.fruit IN ('oranges') and a.sale_date = b.sale_date

3 changes: 3 additions & 0 deletions TopTravellers.sql
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SELECT u.name AS name, IFNULL(SUM(r.distance), 0) AS travelled_distance
FROM Users u LEFT JOIN Rides r ON u.id = r.user_id
GROUP BY u.id, u.name ORDER BY travelled_distance DESC, name ASC;