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Ranking athletes by medals earned

In chapter 1, you used ROW_NUMBER to rank athletes by awarded medals. However, ROW_NUMBER assigns different numbers to athletes with the same count of awarded medals, so it's not a useful ranking function; if two athletes earned the same number of medals, they should have the same rank.

说明

100 XP

Rank each athlete by the number of medals they've earned -- the higher the count, the higher the rank -- with identical numbers in case of identical values.

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说明

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