I need a query which can be used in (or as) a function and retrieves all permutations of n values. And I need all permutations of length k where k = 1..n.
Extended sample input and result so input has 3 values instead of 2 – however, number of input values may vary from 1 to n.
Example:
Input: table with values in one column in multiple rows
Value (nvarchar(500))
——
Ann
John
Mark
Output#1: table with values concatenated in one column
Ann
John
Mark
Ann,John
Ann,Mark
John,Mark
Ann,John,Mark
