Datum & Tijd (MySQL)
Timestamps
Bv.:
select date_format(now(),"%Y%m%d_%H%i"); 20180724_1124
en
select date_format(now(),"%Y%m%d_%H%i%s"); 20200115_143829
Meer:
select now(); -- 2017-04-28 17:17:02 select date_format(now(),"%m"); -- 04 select date_format(now(),'%m'); -- 04 select date_format(now(),"%d"); -- 28 select date_format(now(),"%m/%d/%y"); -- 04/28/17 select date_format(now(),"%m/%d/%Y"); -- 04/28/2017 select date_format(now(),"%m-%d-%Y"); -- 04-28/2017 select date_format(now(),"%m/%d/%Y")+50; -- 54 → Dit werkt dus niet select date_format(now()+50,"%m/%d/%Y"); -- Null select now()+interval 50 day; -- 2017-06-17 17:18:53 select date_format(now()+interval 90 day,"%m/%d/%Y"); -- 07/27/2017
Unix Time - from_unixtime()
Met from_unixtime() kun je Unix tijdwaardes leesbaar formatteren. Bv.:
select from_unixtime(1453991397); # Output: 2016-01-28 15:29:57
Unix Time - unix_timestamp()
Met unix_timestamp() converteer je een datum of tijd in een leesbaar formaat terug naar Unix Time:
select unix_timestamp(now()); # Output: 2016-02-17 16:41:39
select unix_timestamp("Oct. 19, 2015"); # Output: 0
select unix_timestamp("2015-10-19"); # Output: 1445205600
select unix_timestamp("2011-07-11 07:50:51"); # Output: 1310363451
select unix_timestamp("2011-07-11"); # Output: 1310335200
select unix_timestamp("2011-07"); # Output: 0