Dense rank(密集排名(Dense rank))¶
Supported in: Batch, Faster
Returns the rank of rows within a window partition, without any gaps. In case of ties the rows get same rank. The difference between rank and dense_rank is that dense_rank leaves no gaps in ranking sequence when there are ties.
Expression categories: Aggregate
Declared arguments¶
This function does not take any arguments.
Output type: Integer
中文翻译¶
密集排名(Dense rank)¶
支持环境:批处理(Batch)、快速处理(Faster)
返回窗口分区内各行的排名,且排名之间无间隔。当出现并列情况时,并列行获得相同排名。排名(rank)与密集排名(dense_rank)的区别在于:密集排名在出现并列时,排名序列中不会产生间隔。
表达式类别: 聚合(Aggregate)
声明参数¶
此函数无需任何参数。
输出类型: 整数(Integer)