例 - Teradata Database - Teradata Vantage NewSQL Engine

例: 同順位なしでのBOTTOMの使用

/*PTI Table*/
SELECT $TD_TIMECODE_RANGE, $TD_GROUP_BY_TIME, BUOYID, BOTTOM(2, TEMPERATURE)
FROM OCEAN_BUOYS
WHERE TD_TIMECODE BETWEEN TIMESTAMP '2014-01-06 10:00:00' AND TIMESTAMP '2014-01-06 10:06:00' AND BUOYID=44
GROUP BY TIME (MINUTES(2) AND BUOYID) FILL(NULLS)
ORDER BY 1, 4, 3;

/*Non-PTI Table*/
SELECT $TD_TIMECODE_RANGE, $TD_GROUP_BY_TIME, BUOYID, BOTTOM(2, TEMPERATURE)
FROM OCEAN_BUOYS_NONPTI
WHERE TIMECODE BETWEEN TIMESTAMP '2014-01-06 10:00:00' AND TIMESTAMP '2014-01-06 10:06:00' AND BUOYID=44
GROUP BY TIME (MINUTES(2) AND BUOYID)
USING TIMECODE(TIMECODE)
FILL(NULLS)
ORDER BY 1, 4, 3;

結果は、両方のテーブルで同じです。

例: 同順位ありでのBOTTOMの使用

/*PTI Table*/
SELECT $TD_TIMECODE_RANGE, $TD_GROUP_BY_TIME, BUOYID, BOTTOM WITH TIES(2, TEMPERATURE)
FROM OCEAN_BUOYS
WHERE TD_TIMECODE BETWEEN TIMESTAMP '2014-01-06 10:00:00' AND TIMESTAMP '2014-01-06 10:06:00' AND BUOYID=44
GROUP BY TIME (MINUTES(2) AND BUOYID) FILL(NULLS)
ORDER BY 1, 4, 3;


/*Non-PTI Table*/
SELECT $TD_TIMECODE_RANGE, $TD_GROUP_BY_TIME, BUOYID, BOTTOM WITH TIES(2, TEMPERATURE)
FROM OCEAN_BUOYS_NONPTI
WHERE TIMECODE BETWEEN TIMESTAMP '2014-01-06 10:00:00' AND TIMESTAMP '2014-01-06 10:06:00' AND BUOYID=44
GROUP BY TIME (MINUTES(2) AND BUOYID)
USING TIMECODE(TIMECODE)
FILL(NULLS)

結果は、両方のテーブルで同じです。