Someone took "Santa Claus is Coming to Town" and turned it into a database admin's Christmas carol. The lyrics perfectly map SQL operations to the original song: making a database (making a list), sorting twice (checking it twice), and the WHERE clause filtering for good behavior.
The real genius here is "SQL Clause" instead of "Santa Claus" – it's the kind of dad joke that makes you groan and chuckle simultaneously. Props to whoever printed this on what appears to be toilet paper, because that's exactly where most of our SQL queries deserve to end up after the third JOIN goes wrong.
Fun fact: The ORDER BY clause actually has to process the entire result set before returning anything, which is why sorting twice would genuinely make Santa's database performance absolutely terrible. Maybe that's why some kids don't get presents – query timeout.
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