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POWER (SSIS Expression)

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

POWER(numeric_expression,power)

numeric_expression

Is a valid numeric expression.

power

Is a valid numeric expression.

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.

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) 

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