SQRT (SSIS Expressions)
Returns the square root of a numeric expression.
This example returns the square root of a numeric literal. The return result is 12.
This example returns the square root of an expression, the result of subtracting values in the Value1 and Value2 columns.
SQRT(Value1 - Value2)
This example returns the length of the third side of a right triangle by applying the SQUARE function to two variables and then calculating the square root of their sum. If Side1 contains 3 and Side2 contains 4, the SQRT function returns 5.
SQRT(SQUARE(@Side1) + SQUARE(@Side2))
In expressions, variable names always include the @ prefix.