A number is a special
data type. There are fixed point and floating point numbers:A fixed point number is described by the number of significant digits and the scale. The maximum number of significant digits is 38.
Examples:
A floating point number consists of a mantissa and an exponent. The mantissa may have up to 38 significant digits. The valid range of values for floating point numbers consists of the intervals from -9. 9999999999999999999999999999999999999E +62 to -1E-64 and from +1E-64 to +9. 9999999999999999999999999999999999999E +62 and the value 0.0.
Example: FLOAT
All numbers can be compared to one another.