Name
STDDEV — Returns the standard deviation.
Synopsis
numeric
STDDEV
(
|
in expr1 any , |
in
expr2
any
); |
Description
STDDEV returns standard deviation. It returns STDDEV_SAMP if the number of pairs is more than one, or NULL.
Parameters
expr1
Number expression.
expr2
Number expression.
Return Types
The function returns a value of type NUMERIC. If the function is applied to an empty set, then it returns null.