Examples with datetime types - Amazon Redshift

Examples with datetime types

Following, you can find examples for working with datetime types supported by Amazon Redshift.

Date examples

The following examples insert dates that have different formats and display the output.

create table datetable (start_date date, end_date date);
insert into datetable values ('2008-06-01','2008-12-31'); insert into datetable values ('Jun 1,2008','20081231');
select * from datetable order by 1; start_date | end_date ------------------------ 2008-06-01 | 2008-12-31 2008-06-01 | 2008-12-31

If you insert a timestamp value into a DATE column, the time portion is ignored and only the date is loaded.

Time stamp examples

If you insert a date into a TIMESTAMP or TIMESTAMPTZ column, the time defaults to midnight. For example, if you insert the literal 20081231, the stored value is 2008-12-31 00:00:00.

To change the time zone for the current session, use the SET command to set the timezone configuration parameter.

The following examples insert timestamps that have different formats and display the output.

create table tstamp(timeofday timestamp, timeofdaytz timestamptz); insert into tstamp values('Jun 1,2008 09:59:59', 'Jun 1,2008 09:59:59 EST' ); insert into tstamp values('Dec 31,2008 18:20','Dec 31,2008 18:20'); insert into tstamp values('Jun 1,2008 09:59:59 EST', 'Jun 1,2008 09:59:59'); timeofday --------------------- 2008-06-01 09:59:59 2008-12-31 18:20:00 (2 rows)