16.20 - Java Aggregate Function: Standard Deviation - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL External Routine Programming

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Release Date
April 2020
Content Type
Programming Reference
Publication ID
B035-1147-162K
Language
English (United States)

This example shows the Java code for a simple aggregate UDF that calculates the standard deviation, as follows:


Simple aggregate UDF calculating standard deviation

The Java class defines two methods that calculate the standard deviation. One method shows how to represent intermediate aggregate results as a byte array and the other method shows how to represent intermediate aggregate results as an object.