row_number
ranking window function
Applies to: Databricks SQL Databricks Runtime
Assigns a unique, sequential number to each row, starting with one, according to the ordering of rows in the window partition.
Returns
An INTEGER
.
The OVER
clause of the window function must include an ORDER BY clause.
Unlike rank
and dense_rank
, row_number
breaks ties.
If the order is not unique, the result is non-deterministic.