16.20 - Computing the Moving Difference When No Preceding Row Exists - 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)

When the number of preceding rows to use in a moving difference computation is fewer than the specified width, the result is null.