What the mean of this signin mysql <>
"not equal to". It's the same as other languages "!=".
<> is the same with != ( not equal). As a example: select name from table where name <> 'Vishal' This will return all the names tha are not 'Vishal'
This symbol(<>) is used in numbers
Same ideea :) select students from table where age <> 18 It selects all students with the age NOT EQUAL TO 18
these are relational operators ... > greater than and < smaller than.... for ex: select * from employee where salary > 10,000;