| --- |
| { |
| "title": "WINDOW_FUNCTION_RANK", |
| "language": "en" |
| } |
| --- |
| |
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| |
| http://www.apache.org/licenses/LICENSE-2.0 |
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| |
| ## WINDOW FUNCTION RANK |
| ### description |
| |
| The RANK() function is used to represent rankings. Unlike DENSE_RANK(), RANK() will have vacancies. For example, if there are two 1s in a row, the third number in RANK() is 3, not 2. |
| |
| ```sql |
| RANK() OVER(partition_by_clause order_by_clause) |
| ``` |
| |
| ### example |
| |
| rank by x |
| |
| ```sql |
| select x, y, rank() over(partition by x order by y) as rank from int_t; |
| |
| | x | y | rank | |
| |----|------|----------| |
| | 1 | 1 | 1 | |
| | 1 | 2 | 2 | |
| | 1 | 2 | 2 | |
| | 2 | 1 | 1 | |
| | 2 | 2 | 2 | |
| | 2 | 3 | 3 | |
| | 3 | 1 | 1 | |
| | 3 | 1 | 1 | |
| | 3 | 2 | 3 | |
| ``` |
| |
| ### keywords |
| |
| WINDOW,FUNCTION,RANK |