portableSql
StdDev Portable SQL Function
Syntax
StdDev as N (Expression as N)
Arguments
- ExpressionNumeric
A field or expression.
Returns
- resultNumeric
Returns the standard deviation of the expression over all rows that satisfy the expression.
Description
Compute the standard deviation of the expression over all rows that satisfy the expression.
Discussion
The StdDev function is used to calculate statistical information for a specified numeric field in a query.
StdDev() function executed on the Northwind Access database
SELECT StdDev(Order_Details.Discount) AS StdDevDiscount FROM [Order Details] Order_Details =0.083450262651757