本文主要是介绍Vertica用于时间计算的SQL语句大全，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
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| 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' - timestamp '2005-01-01') day; | 16 |
select cast((timestamp '2005-01-17 10:00' - timestamp '2005-01-01') day as integer) / 7; | 2 |
select floor((timestamp '2005-01-17 10:00' - timestamp '2005-01-01') / interval '7'); | 2 |
select timestamptz '2009-05-29 15:21:00.456789'; | 2009-05-2915:21:00.456789-04 |
select timestamptz '2009-05-28'; | 2009-05-2800:00:00-04 |
select timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28'; | 1 15:21:00.456789 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28'); | 1 15:21:00.456789 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28')(3); | 1 15:21:00.457 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28')second; | 141660.456789 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') year; | 0 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2007-01-01') month; | 28 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2007-01-01') year; | 2 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2007-01-01') year to month; | 2-4 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') second(3); | 141660.457 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute(3); | 2361 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute; | 2361 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute to second(3); | 2361:00.457 |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute to second; | 2361:00.456789 |
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