INCREMENT BY Option
Use the INCREMENT BY option to specify the interval between successive
numbers in the sequence. The BY keyword is optional. The interval,
or step value, can be a positive whole number (for an ascending sequence)
or a negative whole number (for a descending sequence) in the
INT8 range. If you do not specify any step value, the default
interval between successive generated values is 1
,
and the sequence is an ascending sequence.