SQL SERVER – Puzzle – Write a Shortest Code to Produce Zero

Originally Posted by: Pinal Dave @ SQLAuthority
https://blog.sqlauthority.com/2017/08/24/sql-server-puzzle-write-shortest-code-produce-zero/

Image Source: https://fr.fotolia.com/tag/quiz

Pinal Dave is someone whose blogs I've followed for years, probably almost a decade. He has posted a puzzle on his website. If you know the answer, head over to the site, link above and respond!

Puzzle: Write a Shortest Code to Produce Zero
Conditions
1. Do not use numbers and arithmetic calculation
2. Do not use the function 'LEN()'
3. Do not use 0 in the code
4. Length of the entire code should be less than 19 characters

Good Luck!