Power is the ability to raise a value to a given exponent.
Syntax: power (value, exponent)
Ex:
SQL> select power(2,5), power(0,0), power(1,1), power(null,null),
power(2,-5)
from dual;
POWER(2,5)
POWER(0,0) POWER(1,1) POWER(NULL,NULL) POWER(2,-5)
-------------- -------------- ----- --------- ----------------------- ---------------
32 1 1 .03125