MySQL之-日期時(shí)間Extract函數(shù)代碼示例詳細(xì)介紹

set @dt = '2008-09-10 07:15:30.123456'; 
select date(@dt); -- 2008-09-10 
select time(@dt); -- 07:15:30.123456 
select year(@dt); -- 2008 
select quarter(@dt); -- 3 
select month(@dt); -- 9 
select week(@dt); -- 36 
select day(@dt); -- 10 
select hour(@dt); -- 7 
select minute(@dt); -- 15 
select second(@dt); -- 30 
select microsecond(@dt); -- 123456

set @dt = '2008-09-10 07:15:30.123456'; 
select extract(year from @dt); -- 2008 
select extract(quarter from @dt); -- 3 
select extract(month from @dt); -- 9 
select extract(week from @dt); -- 36 
select extract(day from @dt); -- 10 
select extract(hour from @dt); -- 7 
select extract(minute from @dt); -- 15 
select extract(second from @dt); -- 30 
select extract(microsecond from @dt); -- 123456 
 
select extract(year_month from @dt); -- 200809 
select extract(day_hour from @dt); -- 1007 
select extract(day_minute from @dt); -- 100715 
select extract(day_second from @dt); -- 10071530 
select extract(day_microsecond from @dt); -- 10071530123456 
select extract(hour_minute from @dt); -- 715 
select extract(hour_second from @dt); -- 71530 
select extract(hour_microsecond from @dt); -- 71530123456 
select extract(minute_second from @dt); -- 1530 
select extract(minute_microsecond from @dt); -- 1530123456 
select extract(second_microsecond from @dt); -- 30123456