For questions related with the *mod operation*, that can arise in Cryptography, Number Theory, Hashing, etc.
When I calculate int i = -1 % 2 I get -1 in Java. In Python, I get 1 as the result of -1 % 2. …
java math modI understand how DISTINCT works, but I don't understand DISTINCT ON (expression). Take the first example from this screenshot: How …
sql database postgresql mod distinct-on