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HardPrep Room Coding #5121

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SQLAlgorithms & data structuresSenior~14 min

Return each customer's two largest paid orders. Give `customer_id`, `id` and `total_cents`, ordered by customer then amount descending.

What a strong answer looks like

Say what the query is meant to return before you write it, and name the shape of the answer: how many rows, grouped by what. Then watch the NULLs and the duplicates, because that is where most of these are lost.

Run onlyA query runs as one statement, so there is nothing to step through. Run it and read the rows.

0:00 of about 14 min

Expected, in this order

customer_ididtotal_cents
1112000
177800
2389000
2622000

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