Belonging to number; denoting number; consisting in numbers; expressed by numbers, and not letters; as, numerical characters; a numerical equation; a numerical statement
NCL: Any data type that represents a numerical value The numeric data types are: double, float, long, integer, short, and byte
A sequence of unrestricted characters that conform to encoding rules which permit its interpretation as a number [641 0-B-1] A special case of unquoted string which conforms to formation rules for numeric values [641 0-G-1]