I'm looking for a function to scramble or randomize a column in my existing database. What I mean by this is that I have a few thousand records of patients. I want to randomize their last names so that the last names do not match the rest of the record so they can't be directly identified. I'll do a similar process with other columns (first name, date of birth, etc.) but what I need is a way to swap out the names so the last name is written to a random record.