POWER (SSIS Expression)

Returns the result of raising a numeric expression to a power. The power parameter must evaluate to an integer.

Syntax


POWER(numeric_expression,power)  

Arguments

numeric_expression
Is a valid numeric expression.

power
Is a valid numeric expression.

Result Types

DT_R8

Remarks

The numeric_expression and power arguments are cast to the DT_R8 data type before the power is computed. For more information, see Integration Services Data Types.

If numeric_expression evaluates to zero and power is negative, the expression evaluator returns an error and sets the return result to null.

If numeric_expression or power evaluate to indeterminate results, the return result is null.

The power argument can be a fraction. For example, you can use the value 0.5 as the power.

Expression Examples

This example uses a numeric literal. The function raises 4 to the power of 3 and returns 64.

POWER(4,3)  

This example uses the Length column and the DimensionCount variable. If Length is 8, and DimensionCount is 2, the return result is 64.

POWER(Length, @DimensionCount)   

See Also

Functions (SSIS Expression)