The REAL data type provides 4 bytes of storage for numbers using IEEE floating-point notation.
java.lang.Float
REAL
REAL value ranges:
These limits are different from the
An exception is thrown when any double value is calculated or entered that is outside of these value ranges. Arithmetic operations do not round their resulting values to zero. If the values are too small, you will receive an exception. The arithmetic operations take place with double arithmetic in order to detect under flows.
Numeric floating point constants
are limited to a length of 30 characters.
When
mixed with other data types in expressions, the resulting data type follows
the rules shown in
See
also
Constants always map to DOUBLE PRECISION; use a CAST to convert a constant to a REAL.