mariadb/mysql-test/r/func_time.result

drop table if exists t1,t2;
select from_days(to_days("960101")),to_days(960201)-to_days("19960101"),to_days(date_add(curdate(), interval 1 day))-to_days(curdate()),weekday("1997-11-29");
from_days(to_days("960101"))	to_days(960201)-to_days("19960101")	to_days(date_add(curdate(), interval 1 day))-to_days(curdate())	weekday("1997-11-29")
1996-01-01	31	1	5
select period_add("9602",-12),period_diff(199505,"9404") ;
period_add("9602",-12)	period_diff(199505,"9404")
199502	13
select now()-now(),weekday(curdate())-weekday(now()),unix_timestamp()-unix_timestamp(now());
now()-now()	weekday(curdate())-weekday(now())	unix_timestamp()-unix_timestamp(now())
0	0	0
select from_unixtime(unix_timestamp("1994-03-02 10:11:12")),from_unixtime(unix_timestamp("1994-03-02 10:11:12"),"%Y-%m-%d %h:%i:%s"),from_unixtime(unix_timestamp("1994-03-02 10:11:12"))+0;
from_unixtime(unix_timestamp("1994-03-02 10:11:12"))	from_unixtime(unix_timestamp("1994-03-02 10:11:12"),"%Y-%m-%d %h:%i:%s")	from_unixtime(unix_timestamp("1994-03-02 10:11:12"))+0
1994-03-02 10:11:12	1994-03-02 10:11:12	19940302101112
select sec_to_time(9001),sec_to_time(9001)+0,time_to_sec("15:12:22"),
sec_to_time(time_to_sec("0:30:47")/6.21);
sec_to_time(9001)	sec_to_time(9001)+0	time_to_sec("15:12:22")	sec_to_time(time_to_sec("0:30:47")/6.21)
02:30:01	23001	54742	00:04:57
select now()-curdate()*1000000-curtime();
now()-curdate()*1000000-curtime()
0
select strcmp(current_timestamp(),concat(current_date()," ",current_time()));
strcmp(current_timestamp(),concat(current_date()," ",current_time()))
0
select date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w");
date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w")
January Thursday 2nd 1997 97 01 02 03 04 05 4
select date_format("1997-01-02", concat("%M %W %D ","%Y %y %m %d %h %i %s %w"));
date_format("1997-01-02", concat("%M %W %D ","%Y %y %m %d %h %i %s %w"))
January Thursday 2nd 1997 97 01 02 12 00 00 4
select dayofmonth("1997-01-02"),dayofmonth(19970323);
dayofmonth("1997-01-02")	dayofmonth(19970323)
2	23
select month("1997-01-02"),year("98-02-03"),dayofyear("1997-12-31");
month("1997-01-02")	year("98-02-03")	dayofyear("1997-12-31")
1	1998	365
select month("2001-02-00"),year("2001-00-00");
month("2001-02-00")	year("2001-00-00")
2	2001
select DAYOFYEAR("1997-03-03"), WEEK("1998-03-03"), QUARTER(980303);
DAYOFYEAR("1997-03-03")	WEEK("1998-03-03")	QUARTER(980303)
62	9	1
select HOUR("1997-03-03 23:03:22"), MINUTE("23:03:22"), SECOND(230322);
HOUR("1997-03-03 23:03:22")	MINUTE("23:03:22")	SECOND(230322)
23	3	22
select week(19980101),week(19970101),week(19980101,1),week(19970101,1);
week(19980101)	week(19970101)	week(19980101,1)	week(19970101,1)
0	0	1	1
select week(19981231),week(19971231),week(19981231,1),week(19971231,1);
week(19981231)	week(19971231)	week(19981231,1)	week(19971231,1)
52	52	53	53
select week(19950101),week(19950101,1);
week(19950101)	week(19950101,1)
1	0
select yearweek('1981-12-31',1),yearweek('1982-01-01',1),yearweek('1982-12-31',1),yearweek('1983-01-01',1);
yearweek('1981-12-31',1)	yearweek('1982-01-01',1)	yearweek('1982-12-31',1)	yearweek('1983-01-01',1)
198153	198153	198252	198252
select yearweek('1987-01-01',1),yearweek('1987-01-01');
yearweek('1987-01-01',1)	yearweek('1987-01-01')
198701	198652
select week("2000-01-01",0) as '2000', week("2001-01-01",0) as '2001', week("2002-01-01",0) as '2002',week("2003-01-01",0) as '2003', week("2004-01-01",0) as '2004', week("2005-01-01",0) as '2005', week("2006-01-01",0) as '2006';
2000	2001	2002	2003	2004	2005	2006
0	0	0	0	0	0	1
select week("2000-01-06",0) as '2000', week("2001-01-06",0) as '2001', week("2002-01-06",0) as '2002',week("2003-01-06",0) as '2003', week("2004-01-06",0) as '2004', week("2005-01-06",0) as '2005', week("2006-01-06",0) as '2006';
2000	2001	2002	2003	2004	2005	2006
1	0	1	1	1	1	1
select week("2000-01-01",1) as '2000', week("2001-01-01",1) as '2001', week("2002-01-01",1) as '2002',week("2003-01-01",1) as '2003', week("2004-01-01",1) as '2004', week("2005-01-01",1) as '2005', week("2006-01-01",1) as '2006';
2000	2001	2002	2003	2004	2005	2006
0	1	1	1	1	0	0
select week("2000-01-06",1) as '2000', week("2001-01-06",1) as '2001', week("2002-01-06",1) as '2002',week("2003-01-06",1) as '2003', week("2004-01-06",1) as '2004', week("2005-01-06",1) as '2005', week("2006-01-06",1) as '2006';
2000	2001	2002	2003	2004	2005	2006
1	1	1	2	2	1	1
select yearweek("2000-01-01",0) as '2000', yearweek("2001-01-01",0) as '2001', yearweek("2002-01-01",0) as '2002',yearweek("2003-01-01",0) as '2003', yearweek("2004-01-01",0) as '2004', yearweek("2005-01-01",0) as '2005', yearweek("2006-01-01",0) as '2006';
2000	2001	2002	2003	2004	2005	2006
199952	200053	200152	200252	200352	200452	200601
select yearweek("2000-01-06",0) as '2000', yearweek("2001-01-06",0) as '2001', yearweek("2002-01-06",0) as '2002',yearweek("2003-01-06",0) as '2003', yearweek("2004-01-06",0) as '2004', yearweek("2005-01-06",0) as '2005', yearweek("2006-01-06",0) as '2006';
2000	2001	2002	2003	2004	2005	2006
200001	200053	200201	200301	200401	200501	200601
select yearweek("2000-01-01",1) as '2000', yearweek("2001-01-01",1) as '2001', yearweek("2002-01-01",1) as '2002',yearweek("2003-01-01",1) as '2003', yearweek("2004-01-01",1) as '2004', yearweek("2005-01-01",1) as '2005', yearweek("2006-01-01",1) as '2006';
2000	2001	2002	2003	2004	2005	2006
199952	200101	200201	200301	200401	200453	200552
select yearweek("2000-01-06",1) as '2000', yearweek("2001-01-06",1) as '2001', yearweek("2002-01-06",1) as '2002',yearweek("2003-01-06",1) as '2003', yearweek("2004-01-06",1) as '2004', yearweek("2005-01-06",1) as '2005', yearweek("2006-01-06",1) as '2006';
2000	2001	2002	2003	2004	2005	2006
200001	200101	200201	200302	200402	200501	200601
select date_format('1998-12-31','%x-%v'),date_format('1999-01-01','%x-%v');
date_format('1998-12-31','%x-%v')	date_format('1999-01-01','%x-%v')
1998-53	1998-53
select date_format('1999-12-31','%x-%v'),date_format('2000-01-01','%x-%v');
date_format('1999-12-31','%x-%v')	date_format('2000-01-01','%x-%v')
1999-52	1999-52
select dayname("1962-03-03"),dayname("1962-03-03")+0;
dayname("1962-03-03")	dayname("1962-03-03")+0
Saturday	5
select monthname("1972-03-04"),monthname("1972-03-04")+0;
monthname("1972-03-04")	monthname("1972-03-04")+0
March	3
select time_format(19980131000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
time_format(19980131000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
00|12|0|12|00|AM|12:00:00 AM|00|00:00:00
select time_format(19980131010203,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
time_format(19980131010203,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
01|01|1|1|02|AM|01:02:03 AM|03|01:02:03
select time_format(19980131131415,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
time_format(19980131131415,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
13|01|13|1|14|PM|01:14:15 PM|15|13:14:15
select time_format(19980131010015,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
time_format(19980131010015,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
01|01|1|1|00|AM|01:00:15 AM|15|01:00:15
select date_format(concat('19980131',131415),'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w');
date_format(concat('19980131',131415),'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w')
13|01|13|1|14|PM|01:14:15 PM|15|13:14:15| January|Saturday|31st|1998|98|Sat|Jan|031|01|31|01|15|6
select date_format(19980021000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w');
date_format(19980021000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w')
NULL
select date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND);
date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND)
1998-01-01 00:00:00
select date_add("1997-12-31 23:59:59",INTERVAL 1 MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL 1 MINUTE)
1998-01-01 00:00:59
select date_add("1997-12-31 23:59:59",INTERVAL 1 HOUR);
date_add("1997-12-31 23:59:59",INTERVAL 1 HOUR)
1998-01-01 00:59:59
select date_add("1997-12-31 23:59:59",INTERVAL 1 DAY);
date_add("1997-12-31 23:59:59",INTERVAL 1 DAY)
1998-01-01 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL 1 MONTH);
date_add("1997-12-31 23:59:59",INTERVAL 1 MONTH)
1998-01-31 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL 1 YEAR);
date_add("1997-12-31 23:59:59",INTERVAL 1 YEAR)
1998-12-31 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" MINUTE_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "1:1" MINUTE_SECOND)
1998-01-01 00:01:00
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" HOUR_MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL "1:1" HOUR_MINUTE)
1998-01-01 01:00:59
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" DAY_HOUR);
date_add("1997-12-31 23:59:59",INTERVAL "1:1" DAY_HOUR)
1998-01-02 00:59:59
select date_add("1997-12-31 23:59:59",INTERVAL "1 1" YEAR_MONTH);
date_add("1997-12-31 23:59:59",INTERVAL "1 1" YEAR_MONTH)
1999-01-31 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL "1:1:1" HOUR_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "1:1:1" HOUR_SECOND)
1998-01-01 01:01:00
select date_add("1997-12-31 23:59:59",INTERVAL "1 1:1" DAY_MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL "1 1:1" DAY_MINUTE)
1998-01-02 01:00:59
select date_add("1997-12-31 23:59:59",INTERVAL "1 1:1:1" DAY_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "1 1:1:1" DAY_SECOND)
1998-01-02 01:01:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 SECOND);
date_sub("1998-01-01 00:00:00",INTERVAL 1 SECOND)
1997-12-31 23:59:59
select date_sub("1998-01-01 00:00:00",INTERVAL 1 MINUTE);
date_sub("1998-01-01 00:00:00",INTERVAL 1 MINUTE)
1997-12-31 23:59:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 HOUR);
date_sub("1998-01-01 00:00:00",INTERVAL 1 HOUR)
1997-12-31 23:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 DAY);
date_sub("1998-01-01 00:00:00",INTERVAL 1 DAY)
1997-12-31 00:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 MONTH);
date_sub("1998-01-01 00:00:00",INTERVAL 1 MONTH)
1997-12-01 00:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 YEAR);
date_sub("1998-01-01 00:00:00",INTERVAL 1 YEAR)
1997-01-01 00:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" MINUTE_SECOND);
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" MINUTE_SECOND)
1997-12-31 23:58:59
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" HOUR_MINUTE);
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" HOUR_MINUTE)
1997-12-31 22:59:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" DAY_HOUR);
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" DAY_HOUR)
1997-12-30 23:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1" YEAR_MONTH);
date_sub("1998-01-01 00:00:00",INTERVAL "1 1" YEAR_MONTH)
1996-12-01 00:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1:1" HOUR_SECOND);
date_sub("1998-01-01 00:00:00",INTERVAL "1:1:1" HOUR_SECOND)
1997-12-31 22:58:59
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1" DAY_MINUTE);
date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1" DAY_MINUTE)
1997-12-30 22:59:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1:1" DAY_SECOND);
date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1:1" DAY_SECOND)
1997-12-30 22:58:59
select date_add("1997-12-31 23:59:59",INTERVAL 100000 SECOND);
date_add("1997-12-31 23:59:59",INTERVAL 100000 SECOND)
1998-01-02 03:46:39
select date_add("1997-12-31 23:59:59",INTERVAL -100000 MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL -100000 MINUTE)
1997-10-23 13:19:59
select date_add("1997-12-31 23:59:59",INTERVAL 100000 HOUR);
date_add("1997-12-31 23:59:59",INTERVAL 100000 HOUR)
2009-05-29 15:59:59
select date_add("1997-12-31 23:59:59",INTERVAL -100000 DAY);
date_add("1997-12-31 23:59:59",INTERVAL -100000 DAY)
1724-03-17 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL 100000 MONTH);
date_add("1997-12-31 23:59:59",INTERVAL 100000 MONTH)
NULL
select date_add("1997-12-31 23:59:59",INTERVAL -100000 YEAR);
date_add("1997-12-31 23:59:59",INTERVAL -100000 YEAR)
NULL
select date_add("1997-12-31 23:59:59",INTERVAL "10000:1" MINUTE_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "10000:1" MINUTE_SECOND)
1998-01-07 22:40:00
select date_add("1997-12-31 23:59:59",INTERVAL "-10000:1" HOUR_MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL "-10000:1" HOUR_MINUTE)
1996-11-10 07:58:59
select date_add("1997-12-31 23:59:59",INTERVAL "10000:1" DAY_HOUR);
date_add("1997-12-31 23:59:59",INTERVAL "10000:1" DAY_HOUR)
2025-05-19 00:59:59
select date_add("1997-12-31 23:59:59",INTERVAL "-100 1" YEAR_MONTH);
date_add("1997-12-31 23:59:59",INTERVAL "-100 1" YEAR_MONTH)
1897-11-30 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL "10000:99:99" HOUR_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "10000:99:99" HOUR_SECOND)
1999-02-21 17:40:38
select date_add("1997-12-31 23:59:59",INTERVAL " -10000 99:99" DAY_MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL " -10000 99:99" DAY_MINUTE)
1970-08-11 19:20:59
select date_add("1997-12-31 23:59:59",INTERVAL "10000 99:99:99" DAY_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "10000 99:99:99" DAY_SECOND)
2025-05-23 04:40:38
select "1997-12-31 23:59:59" + INTERVAL 1 SECOND;
"1997-12-31 23:59:59" + INTERVAL 1 SECOND
1998-01-01 00:00:00
select INTERVAL 1 DAY + "1997-12-31";
INTERVAL 1 DAY + "1997-12-31"
1998-01-01
select "1998-01-01 00:00:00" - INTERVAL 1 SECOND;
"1998-01-01 00:00:00" - INTERVAL 1 SECOND
1997-12-31 23:59:59
select date_sub("1998-01-02",INTERVAL 31 DAY);
date_sub("1998-01-02",INTERVAL 31 DAY)
1997-12-02
select date_add("1997-12-31",INTERVAL 1 SECOND);
date_add("1997-12-31",INTERVAL 1 SECOND)
1997-12-31 00:00:01
select date_add("1997-12-31",INTERVAL 1 DAY);
date_add("1997-12-31",INTERVAL 1 DAY)
1998-01-01
select date_add(NULL,INTERVAL 100000 SECOND);
date_add(NULL,INTERVAL 100000 SECOND)
NULL
select date_add("1997-12-31 23:59:59",INTERVAL NULL SECOND);
date_add("1997-12-31 23:59:59",INTERVAL NULL SECOND)
NULL
select date_add("1997-12-31 23:59:59",INTERVAL NULL MINUTE_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL NULL MINUTE_SECOND)
NULL
select date_add("9999-12-31 23:59:59",INTERVAL 1 SECOND);
date_add("9999-12-31 23:59:59",INTERVAL 1 SECOND)
NULL
select date_sub("0000-00-00 00:00:00",INTERVAL 1 SECOND);
date_sub("0000-00-00 00:00:00",INTERVAL 1 SECOND)
NULL
select date_add('1998-01-30',Interval 1 month);
date_add('1998-01-30',Interval 1 month)
1998-02-28
select date_add('1998-01-30',Interval '2:1' year_month);
date_add('1998-01-30',Interval '2:1' year_month)
2000-02-29
select date_add('1996-02-29',Interval '1' year);
date_add('1996-02-29',Interval '1' year)
1997-02-28
select extract(YEAR FROM "1999-01-02 10:11:12");
extract(YEAR FROM "1999-01-02 10:11:12")
1999
select extract(YEAR_MONTH FROM "1999-01-02");
extract(YEAR_MONTH FROM "1999-01-02")
199901
select extract(DAY FROM "1999-01-02");
extract(DAY FROM "1999-01-02")
2
select extract(DAY_HOUR FROM "1999-01-02 10:11:12");
extract(DAY_HOUR FROM "1999-01-02 10:11:12")
210
select extract(DAY_MINUTE FROM "02 10:11:12");
extract(DAY_MINUTE FROM "02 10:11:12")
21011
select extract(DAY_SECOND FROM "225 10:11:12");
extract(DAY_SECOND FROM "225 10:11:12")
225101112
select extract(HOUR FROM "1999-01-02 10:11:12");
extract(HOUR FROM "1999-01-02 10:11:12")
10
select extract(HOUR_MINUTE FROM "10:11:12");
extract(HOUR_MINUTE FROM "10:11:12")
1011
select extract(HOUR_SECOND FROM "10:11:12");
extract(HOUR_SECOND FROM "10:11:12")
101112
select extract(MINUTE FROM "10:11:12");
extract(MINUTE FROM "10:11:12")
11
select extract(MINUTE_SECOND FROM "10:11:12");
extract(MINUTE_SECOND FROM "10:11:12")
1112
select extract(SECOND FROM "1999-01-02 10:11:12");
extract(SECOND FROM "1999-01-02 10:11:12")
12
select extract(MONTH FROM "2001-02-00");
extract(MONTH FROM "2001-02-00")
2
create table t1 (ctime varchar(20));
insert into t1 values ('2001-01-12 12:23:40');
select ctime, hour(ctime) from t1;
ctime	hour(ctime)
2001-01-12 12:23:40	12
drop table t1;
create table t1 (id int);
create table t2 (id int, date date);
insert into t1 values (1);
insert into t2 values (1, "0000-00-00");
insert into t1 values (2);
insert into t2 values (2, "2000-01-01");
select monthname(date) from t1 inner join t2 on t1.id = t2.id;
monthname(date)
NULL
January
select monthname(date) from t1 inner join t2 on t1.id = t2.id order by t1.id;
monthname(date)
NULL
January
drop table t1,t2;
CREATE TABLE t1 (updated text) TYPE=MyISAM;
INSERT INTO t1 VALUES ('');
SELECT month(updated) from t1;
month(updated)
NULL
SELECT year(updated) from t1;
year(updated)
NULL
drop table t1;