Puzzle: Write a Shortest Code to Produce Zero.

It has been a long time since we have puzzle on this blog. So I have decided to post this puzzle. You have to write a shortest code which produces digit 0 (zero).
If you think this puzzle is easy, it is not true. I have two very simple but interesting condition for you.
Condition 1: Do not use numbers and arithmetic calculation
Condition 2: Do not use 0 in the code
Condition 3: Do not use function len()
Well, that’s it. So if you were thinking to write code like SELECT 1-1 or PRINT 0 or SELECT LEN(”). You can’t do that. You are not allowed to use numbers, arithmetic calculation or the digit 0 in the code.
Let me show you one valid solution.
SELECT ISDATE('a')Now, here is the challenge for you. The above code produces the result 0 (zero) and the length of the code is 18.
Here is the final condition for you,
Condition 4: Your Solution should have length lesser than 18 characters.
Now think of the interesting solution and post the result in the comment.
I will be happy to see what you can come up with. If you are also subscribed to my newsletter at https://blog.sqlauthority.com/contact-me/sign-up/ please expect a surprise gift for you if you get the correct answer.
Reference: Pinal Dave (https://blog.sqlauthority.com)




726 Comments. Leave new
select char(48)
Hi Pinal,
Here are my code for producing 0 with your conditions.
select @@ERROR
— Length : 14, output : 0
select @@LANGID
— Length : 15 Output : 0
select @@NESTLEVEL
— Length : 18 Output : 0
Please review these
Regards
select @@error
SELECT ISDATE(”)
SELECT ISDATE(”)
PRINT SQRT(”) OR SELECT SQRT(”)
PRINT @@ERROR
print log(1)
SELECT @@ERROR
print isnull(null,0)
Answer1 : SELECT ISDATE(”) //Length : 17
Answer2 : Print ISDATE(”) //Length : 16
select @@error
Yet shorter…
print @@error
SELECT CHAR(48)
Actually,
SELECT PI()-PI()
select abs(”)
If boolean logic doesn’t count as math, I’ve got 10: SELECT ~-1
14 chars
SELECT TAN(”)
SELECT @@ERROR
select isdate(”)
PRINT @@ERROR