Users With Paid Orders
Marketing is building a list of users who have at least one order with status = 'paid'. Rewrite the report without the nested list check and return unique user id values sorted by id.
Original query
SELECT u.id FROM users u WHERE u.id IN (SELECT user_id FROM orders WHERE status = 'paid') ORDER BY u.id
Uzorak očekivanog izlaza
Ovako izgleda ispravan odgovor — broj redaka je njegov vlastiti, ne mora se podudarati s tablicama sheme.
| id |
|---|
| 1 |
| 2 |
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