👉 In programming, "coalesce" is a function in most common programming languages that takes any number of arguments and returns an element from them. It's similar to the "join" method in SQL where you join multiple tables based on specific conditions. For example: ```python >>> data = [1, 2, 3, 'a', 'b'] >>> coalesce(data) [1, 'a', 'b'] ``` In this case, `coalesce` returns the