The constant can be a character string or a hexadecimal string. See Character string format and Hexadecimal string format for details.

If m1 is greater than the length of the constant, the field value will be searched for the constant and the condition will be true if a match is found when the EQ comparison operator is specified or if a match is not found when the NE comparison operator is specified.

If m1 is smaller than the length of the constant, the constant will be searched for the field value and the condition will be true if a match is found when the EQ comparison operator is specified or if a match is not found when the NE comparison operator is specified.