Vertica用于时间计算的SQL语句大全-tutorial mysql-php.cn

Vertica用于时间计算的SQL语句大全

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Lepaskan： 2016-06-07 15:56:53

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2149 orang telah melayarinya

三个字：强、大、全，强力推荐之 SQL语句查询结果 select (timestamp 2005-01-17 10:00 - timestamp 2005-01-01); 16 10:10 select (timestamp 2005-01-17 10:00 - timestamp 2005-01-01) / 7; 2 08:17:08.571429 select (timestamp 2005-01-17 10:00 - tim

三个字：强、大、全，强力推荐之

SQL语句	查询结果
select (timestamp '2005-01-17 10:00' - timestamp '2005-01-01'); Salin selepas log masuk	16 10:10 Salin selepas log masuk
select (timestamp '2005-01-17 10:00' - timestamp '2005-01-01') / 7; Salin selepas log masuk	2 08:17:08.571429 Salin selepas log masuk
select (timestamp '2005-01-17 10:00' - timestamp '2005-01-01') day; Salin selepas log masuk	16 Salin selepas log masuk
select cast((timestamp '2005-01-17 10:00' - timestamp '2005-01-01') day as integer) / 7; Salin selepas log masuk	2 Salin selepas log masuk Salin selepas log masuk Salin selepas log masuk
select floor((timestamp '2005-01-17 10:00' - timestamp '2005-01-01') / interval '7'); Salin selepas log masuk	2 Salin selepas log masuk Salin selepas log masuk Salin selepas log masuk
select timestamptz '2009-05-29 15:21:00.456789'; Salin selepas log masuk	2009-05-2915:21:00.456789-04 Salin selepas log masuk
select timestamptz '2009-05-28'; Salin selepas log masuk	2009-05-2800:00:00-04 Salin selepas log masuk
select timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28'; Salin selepas log masuk	1 15:21:00.456789 Salin selepas log masuk Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28'); Salin selepas log masuk	1 15:21:00.456789 Salin selepas log masuk Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28')(3); Salin selepas log masuk	1 15:21:00.457 Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28')second; Salin selepas log masuk	141660.456789 Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') year; Salin selepas log masuk	0 Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2007-01-01') month; Salin selepas log masuk	28 Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2007-01-01') year; Salin selepas log masuk	2 Salin selepas log masuk Salin selepas log masuk Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2007-01-01') year to month; Salin selepas log masuk	2-4 Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') second(3); Salin selepas log masuk	141660.457 Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute(3); Salin selepas log masuk	2361 Salin selepas log masuk Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute; Salin selepas log masuk	2361 Salin selepas log masuk Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute to second(3); Salin selepas log masuk	2361:00.457 Salin selepas log masuk
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute to second; Salin selepas log masuk	2361:00.456789 Salin selepas log masuk