The aggregate function known as MAX() will return the value that is greater than all of the other values in a set. For instance, if we have a database full of movies, we can apply MAX(rating) to the rating attribute, and it will choose the rows in which we have the movies that have the highest ratings. This works the same way if we apply MAX(rating) to any other property. A CHAR column may, in fact, make use of the MAX function.