!= (Not Equal To) (Transact-SQL)
Tests whether one expression is not equal to another expression (a comparison operator). If either or both operands are NULL, see SET ANSI_NULLS (Transact-SQL). Functions the same as the <> (Not Equal To) comparison operator.
See Also
Reference
Expressions (Transact-SQL)
Operators (Transact-SQL)
Other Resources
Comparison Operators (Database Engine)