例 - Teradata Database - Teradata Vantage NewSQL Engine

使用例:

SELECT HOUR(CURRENT_TIMESTAMP(6));

SELECT MINUTE(CURTIME());

SELECT SECOND('12:34:25');

sel dayofmonth(current_timestamp);
sel dayofmonth(date '2017-08-21');
sel dayofmonth(timestamp '2017-08-21 16:48:27.770000+00:00');
sel dayofmonth('2017-08-21 16:48:27.770000+00:00' (timestamp));
sel dayofmonth(date '1900-01-01');
sel dayofmonth(date '2018-02-22' - interval '300' year);
sel dayofmonth(date '2018-02-22' - interval '6' month);
sel dayofmonth(date '2018-02-22' - interval '15' day);

sel week(date);
sel week(current_date);
sel week(date '1900-01-01');
sel week(date '1700-05-31');
sel week(date - interval '300' year);
sel week(date - interval '6' month);
sel week(date - interval '150' day);

sel month(date);
sel month(current_date);
sel month(date '1900-01-01');
sel month(date '1899-12-31');
sel month(date '1700-05-31');
sel month(date - interval '300' year);
sel month(date - interval '6' month);
sel month(date - interval '150' day);

sel year(date);
sel year(current_date);
sel year(date '1900-01-01');
sel yearmonth(date '1899-12-31');
sel year(date - interval '300' year);
sel year(date - interval '6' month);