POWER

The POWER function returns Base raised to the Exponent power. The Base and Exponent can be any numbers, but if the Base is negative, the Exponent must be an integer.

SQL syntax

POWER (Base, Exponent)

Parameters

POWER has the parameters:

Parameter	Description
Base	Operand or column can be any numeric type. POWER returns this value raised to Exponent power.
Exponent	Operand or column can be any numeric type. If Base is negative, Exponent must be an integer.

Description

If either Base or Exponent is of type BINARY_FLOAT or BINARY_DOUBLE, the data type returned is BINARY_DOUBLE. If the Base is of type NUMBER and the Exponent is not of type BINARY_FLOAT or BINARY_DOUBLE, the date type returned is NUMBER with maximum precision and scale. If Base is one of the TT* numeric types (TT_BIGINT, TT_INTEGER, TT_SMALLINT, or TT_TINYINT), the data type returned is BINARY_DOUBLE.

Example

Use the POWER function to return the commission_pct squared for the employee with employee_id equal to 145.

Command> SELECT employee_id, commission_pct FROM employees 
         WHERE employee_id = 145;

< 145, .4 >
1 row found.

Command> SELECT POWER (commission_pct,2) FROM employees 
         WHERE employee_id = 145;
< .16 >
1 row found.