Sample Query for FILL Clause Examples - Advanced SQL Engine - Teradata Database

Time Series Tables and Operations

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
17.00
Published
June 2020
Language
English (United States)
Last Update
2021-01-22
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B035-1208
lifecycle
previous
Product Category
Teradata Vantageā„¢

The following examples illustrate each of the fill schemes. All the examples use the same initial query (see Table and Data Definition for Time Series Aggregates Examples), which is missing values for timebuckets 1, 3, 6, 7, 8. The missing timebuckets are shown in the table, although by default (without a FILL clause), they are omitted.

SELECT $TD_TIMECODE_RANGE, $TD_GROUP_BY_TIME, BUOYID, AVG(TEMPERATURE)
FROM OCEAN_BUOYS
WHERE TD_TIMECODE BETWEEN TIMESTAMP '2014-01-06 09:45:00' AND TIMESTAMP '2014-01-06 11:45:00'
AND BUOYID=44
GROUP BY TIME (MINUTES(15) AND BUOYID)
ORDER BY 2,3;
TIMECODE_RANGE GROUP BY TIME(MINUTES(15)) BUOYID AVG(TEMPERATURE)
('2014-01-06 09:45:00.000000+00:00', '2014-01-06 10:00:00.000000+00:00') 1 44 MISSING!
('2014-01-06 10:00:00.000000+00:00', '2014-01-06 10:15:00.000000+00:00') 2 44 49
('2014-01-06 10:15:00.000000+00:00', '2014-01-06 10:30:00.000000+00:00') 3 44 MISSING!
('2014-01-06 10:30:00.000000+00:00', '2014-01-06 10:45:00.000000+00:00') 4 44 43
('2014-01-06 10:45:00.000000+00:00', '2014-01-06 11:00:00.000000+00:00') 5 44 43
('2014-01-06 11:00:00.000000+00:00', '2014-01-06 11:15:00.000000+00:00') 6 44 MISSING!
('2014-01-06 11:15:00.000000+00:00', '2014-01-06 11:30:00.000000+00:00') 7 44 MISSING!
('2014-01-06 11:30:00.000000+00:00', '2014-01-06 11:45:00.000000+00:00') 8 44 MISSING!