variant_sub Subtracts the value of the right variant from the left variant value &reftitle.description; mixedvariant_sub mixedleft mixedright Subtracts right from left. &reftitle.parameters; left The left operand. right The right operand. &com.variant-arith; &reftitle.returnvalues; If Then Both expressions are of the string type Subtraction One expression is a string type and the other a character Subtraction One expression is numeric and the other is a string Subtraction. Both expressions are numeric Subtraction Either expression is NULL NULL is returned Both expressions are empty Empty string is returned &reftitle.seealso; variant_add