Three ranking function in the window function

Others 2019-07-18 11:05:58 views: null

Ranking functions:
1. ROW_NUMBER:

　　Not parallel, the same rank order of row
2. rank:

　　There are side by side, the same ranking have vacancies
3. dense_rank:

　　There are side by side, the same ranking no vacancies

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Origin www.cnblogs.com/yjmxx1314/p/11204614.html

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