Actually this Idea that somehow you have to water down or neuter your own traditions in order not to exclude or offend is a peculiarly Anglo-Saxon one -...

Given the behavior of nulls elsewhere, I surely expected this function to also return null. I'm guessing that maybe that would invalidate the practicality of the checksum function, so an...

one of the things I was interested in are the wrong answers, it would be cool to be able to see explanations on those. I accidently got this question right...