STDDEV_SAMP

You are viewing an old version of this article. View the current version here.

Syntax

STDDEV_SAMP(expr)

Description

Returns the sample standard deviation of expr (the square root of VAR_SAMP()).

It is an aggregate function, and so can be used with the GROUP BY clause.

STDDEV_SAMP() can be used as a window function.

STDDEV_SAMP() returns NULL if there were no matching rows.

Comments

Comments loading...
Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.