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
Published
March 2019
Language
English (United States)
Last Update
2020-03-25
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When the number of preceding rows to use in a moving difference computation is fewer than the specified width, the result is null.