Are <> and != Both same in SQL?

Question

When I was reading SQL through w3school, I learnt that if I want to use 'a.xd' not equal to 12 then I can write as WHERE a.xd<>12.
But from here in SoloLearn I learn that != is used are both same or depending on whether I am using mySQL or other SQL tools it varies??

Answer 1

It makes no sense to have <> kind of operator. If u want both u shud give them separately

Answer 2

https://www.w3schools.com/sql/sql_where.asp

see here they are using <>

Answer 3

Yes both works the same way. Not equal sign I believe