In practical data analysis, such as system operations and marketing initiatives, there are many cases where simple rankings are insufficient to accurately grasp the reality when evaluating accumulated ...
Calculates the relative rank of a row within a group of rows in [!INCLUDE [ssnoversion](../../includes/ssnoversion-md.md)]. Use `PERCENT_RANK` to evaluate the ...
-- we use Rank() when we want to know the relative oder of particular rows relative to other rows. (such as 1, 2, 3, etc.) -- the ranking 1, 2, 3 will restart when it reaches to another unique group.