16.20 - Computing the Moving Difference When No Preceding Row Exists - Teradata Vantage NewSQL Engine

Teradata Vantageā„¢ SQL Functions, Expressions, and Predicates

prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
category
Programming Reference
featnum
B035-1145-162K

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