!= (bangeq sign) operator
Applies to: 
Databricks SQL Databricks Runtime
Returns true if expr1 does not equal expr2, or false otherwise. This function is a synonym for <> (lt gt sign) operator.
Syntax
expr1 != expr2
Arguments
expr1: An expression of any comparable type.expr2: An expression that shares a least common type withexpr1.
Returns
A BOOLEAN.
Examples
SQL
> SELECT 2 != 2;
false
> SELECT 3 != 2;
true
> SELECT 1 != '1';
false
> SELECT true != NULL;
NULL
> SELECT NULL != NULL;
NULL