Sql weirdness

Can use space with zero width and other gimmicks for unreadable code

DECLARE​@​int=5;
WITH​a​AS(SELECT​x​FROM(VALUES(1),(1),(1),(1),(1))x(x))
SELECT​TOP(@+1)IIF(r-@=1,SPACE(@)+'*',SPACE(@-r+1)+REPLICATE('*',r*2-1))
FROM(SELECT​r=ROW_NUMBER()OVER(ORDER​BY​1/0)FROM​a,a​b,a​c,a​d)b

• Variable named @ (temp tables can be named # too)
• ORDERBY has 0-width space [https://en.wikipedia.org/wiki/Zero-width_space]
• Other stuff is weirdly working even if SSMS indicates warnings.

Zalgo script is also allowed

[https://en.wikipedia.org/wiki/Zalgo_text]

Also see this link for postgres weirdness which might largely be replicateable in sql: Select wat from sql