例 - Advanced SQL Engine - Teradata Database

次の例は、各地域の売上げ上昇の全期間の累積売上げを検索します。

   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
   )