例: TD_SEQUENCED_AVGの使用 - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQLの日付/時刻関数と式

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Published
2021年7月
Language
日本語
Last Update
2021-09-23
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ja-JP/dzx1591742169550.ditamap
dita:ditavalPath
ja-JP/wrg1590696035526.ditaval
dita:id
B035-1211
Product Category
Software
Teradata Vantage
WITH subtbl(flight_id, charges, duration) AS
     (SELECT flight_id, charges, duration FROM FlightExp)
SELECT * FROM TABLE (
     TD_SYSFNLIB.TD_SEQUENCED_AVG(NEW VARIANT_TYPE(subtbl.flight_id),
          NEW VARIANT_TYPE(subtbl.charges),
                           subtbl.duration)
RETURNS (flight_id INT, charges FLOAT,
     duration PERIOD(TIMESTAMP(6) WITH TIME ZONE))
HASH BY flight_id /* input data is redistributed on column, flight_id */
LOCAL ORDER BY flight_id, duration) /* input data is sorted on these columns */
AS DT(flight_id, charges, duration) ORDER BY 1,3;