Hi guys,   I want to create a Unique Identifier using hash for multiple columns. (I am not sure if I am using the correct terminology)   Taking the baseball data set as an example: I want to hash the personal identifiable information ('Name' column), and still show other columns ('nAtBat', 'nHits') when one queries.    I just started the task and have the following code:   I want to know how to hash the 'name' column.    Could you guys please tell me any method I can use or any resources I can look into?   Thanks in advance! ... View more