Oracle POWER() function
Description
The Oracle POWER function is used to return the value of a number raised to the power of another number. Suppose base M and the exponent is N. The base M and the exponent N can be any numbers, but if M is negative, then N must be an integer.
The function takes any numeric or nonnumeric data type (can be implicitly converted to a numeric data type) as an argument.
If the argument is BINARY_FLOAT, then the function returns BINARY_DOUBLE. Otherwise, the function returns the same numeric data type as the argument
Syntax:
POWER(M,N)
Parameters:
Name | Description |
---|---|
M | A number which is the base of the exponentiation. |
N | A number which is the exponent of the exponentiation. |
Pictorial Presentation of POWER() function
Example:
The statement below returns the value of 32, i.e. 9.
SELECT POWER(3, 2) FROM dual;
Here is the result.
POWER(3,2) ---------- 9
Example: POWER() function with negative value
The statement below returns the value of 4-2, i.e. 0.0625.
SELECT POWER(4,-2) from dual;
Here is the result.
POWER(4,-2) ----------- .0625
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