Returns the Kth largest item indicated by k_numeric_exp in the population of numeric_exp.
For any K supplied, there will be at most K-1 items that are larger. If you ask for K=1, then zero elements are larger; therefore you must have the largest item. If you ask for K=20, then up to 19 elements can be larger.
For the numeric column L with values:
1,2,3,2,5,6,7,8,9,4,2,22
KTHLARGEST(L, 1) /* Ask for the 1st largest element from column L */
returns 22
KTHLARGEST(L, 2) /* Ask for the 2nd largest element from column L */
returns 9
The result is the same as sorting the list (descending, ascending for KTHSMALLEST) and then picking the Kth element from the list. But it is much faster than sorting.
Parameters:
numeric_exp must be a number, or a numeric expression.
k_numeric_exp must be a number, or a numeric expression.