Vertica用于时间计算的SQL语句大全
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'); Copy after login |
16 10:10 Copy after login |
select (timestamp '2005-01-17 10:00' - timestamp '2005-01-01') / 7; Copy after login |
2 08:17:08.571429 Copy after login |
select (timestamp '2005-01-17 10:00' - timestamp '2005-01-01') day; Copy after login |
16 Copy after login |
select cast((timestamp '2005-01-17 10:00' - timestamp '2005-01-01') day as integer) / 7; Copy after login |
2 Copy after login Copy after login Copy after login |
select floor((timestamp '2005-01-17 10:00' - timestamp '2005-01-01') / interval '7'); Copy after login |
2 Copy after login Copy after login Copy after login |
select timestamptz '2009-05-29 15:21:00.456789'; Copy after login |
2009-05-2915:21:00.456789-04 Copy after login |
select timestamptz '2009-05-28'; Copy after login |
2009-05-2800:00:00-04 Copy after login |
select timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28'; Copy after login |
1 15:21:00.456789 Copy after login Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28'); Copy after login |
1 15:21:00.456789 Copy after login Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28')(3); Copy after login |
1 15:21:00.457 Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28')second; Copy after login |
141660.456789 Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') year; Copy after login |
0 Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2007-01-01') month; Copy after login |
28 Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2007-01-01') year; Copy after login |
2 Copy after login Copy after login Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2007-01-01') year to month; Copy after login |
2-4 Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') second(3); Copy after login |
141660.457 Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute(3); Copy after login |
2361 Copy after login Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute; Copy after login |
2361 Copy after login Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute to second(3); Copy after login |
2361:00.457 Copy after login |
select (timestamptz '2009-05-29 15:21:00.456789'-timestamptz '2009-05-28') minute to second; Copy after login |
2361:00.456789 Copy after login |
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