16.20 - Definition - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Release Date
March 2019
Content Type
Programming Reference
Publication ID
B035-1145-162K
Language
English (United States)

The standard deviation is the second moment of a population. For a population, it is a measure of dispersion from the mean of that population.

Do not use STDDEV_POP unless the data points you are processing are the complete population.