16.20 - Example - 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)

This example finds cumulative sales for all periods of increasing sales for each region.

   SUM(sales) OVER (
        PARTITION BY region
        ORDER BY day_of_calendar
        RESET WHEN sales < /* preceding row */ SUM(sales) OVER (
             PARTITION BY region
             ORDER BY day_of_calendar
             ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
        ROWS UNBOUNDED PRECEDING
   )