2002-11-05 21:45:42 +01:00
drop table if exists t1,t2,t3;
2006-06-22 20:23:22 +02:00
set time_zone="+03:00";
2001-11-04 15:14:57 +01:00
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");
2000-12-28 02:56:38 +01:00
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
2001-11-04 15:14:57 +01:00
select period_add("9602",-12),period_diff(199505,"9404") ;
2000-12-28 02:56:38 +01:00
period_add("9602",-12) period_diff(199505,"9404")
199502 13
2001-11-04 15:14:57 +01:00
select now()-now(),weekday(curdate())-weekday(now()),unix_timestamp()-unix_timestamp(now());
2000-12-28 02:56:38 +01:00
now()-now() weekday(curdate())-weekday(now()) unix_timestamp()-unix_timestamp(now())
2006-05-02 15:00:44 +02:00
0.000000 0 0
2001-11-04 15:14:57 +01:00
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;
2000-12-28 02:56:38 +01:00
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
2006-05-02 15:00:44 +02:00
1994-03-02 10:11:12 1994-03-02 10:11:12 19940302101112.000000
2001-11-04 15:14:57 +01:00
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);
2001-08-16 20:01:35 +02:00
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)
2006-05-02 15:00:44 +02:00
02:30:01 23001.000000 54742 00:04:57
2001-11-05 00:04:08 +01:00
select sec_to_time(time_to_sec('-838:59:59'));
sec_to_time(time_to_sec('-838:59:59'))
-838:59:59
2001-11-04 15:14:57 +01:00
select now()-curdate()*1000000-curtime();
2000-12-28 02:56:38 +01:00
now()-curdate()*1000000-curtime()
2006-05-02 15:00:44 +02:00
0.000000
2001-11-04 15:14:57 +01:00
select strcmp(current_timestamp(),concat(current_date()," ",current_time()));
2000-12-28 02:56:38 +01:00
strcmp(current_timestamp(),concat(current_date()," ",current_time()))
0
2002-11-24 14:47:19 +01:00
select strcmp(localtime(),concat(current_date()," ",current_time()));
strcmp(localtime(),concat(current_date()," ",current_time()))
0
select strcmp(localtimestamp(),concat(current_date()," ",current_time()));
strcmp(localtimestamp(),concat(current_date()," ",current_time()))
0
2001-11-04 15:14:57 +01:00
select date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w");
2000-12-28 02:56:38 +01:00
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
2001-11-04 15:14:57 +01:00
select date_format("1997-01-02", concat("%M %W %D ","%Y %y %m %d %h %i %s %w"));
2000-12-28 02:56:38 +01:00
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
2001-11-04 15:14:57 +01:00
select dayofmonth("1997-01-02"),dayofmonth(19970323);
2000-12-28 02:56:38 +01:00
dayofmonth("1997-01-02") dayofmonth(19970323)
2 23
2001-11-04 15:14:57 +01:00
select month("1997-01-02"),year("98-02-03"),dayofyear("1997-12-31");
2000-12-28 02:56:38 +01:00
month("1997-01-02") year("98-02-03") dayofyear("1997-12-31")
1 1998 365
2001-11-04 15:14:57 +01:00
select month("2001-02-00"),year("2001-00-00");
2001-05-23 01:40:24 +02:00
month("2001-02-00") year("2001-00-00")
2 2001
2001-11-04 15:14:57 +01:00
select DAYOFYEAR("1997-03-03"), WEEK("1998-03-03"), QUARTER(980303);
2000-12-28 02:56:38 +01:00
DAYOFYEAR("1997-03-03") WEEK("1998-03-03") QUARTER(980303)
62 9 1
2001-11-04 15:14:57 +01:00
select HOUR("1997-03-03 23:03:22"), MINUTE("23:03:22"), SECOND(230322);
2000-12-28 02:56:38 +01:00
HOUR("1997-03-03 23:03:22") MINUTE("23:03:22") SECOND(230322)
23 3 22
2001-11-04 15:14:57 +01:00
select week(19980101),week(19970101),week(19980101,1),week(19970101,1);
2000-12-28 02:56:38 +01:00
week(19980101) week(19970101) week(19980101,1) week(19970101,1)
2001-11-04 15:14:57 +01:00
0 0 1 1
select week(19981231),week(19971231),week(19981231,1),week(19971231,1);
2000-12-28 02:56:38 +01:00
week(19981231) week(19971231) week(19981231,1) week(19971231,1)
2001-11-04 15:14:57 +01:00
52 52 53 53
select week(19950101),week(19950101,1);
2000-12-28 02:56:38 +01:00
week(19950101) week(19950101,1)
1 0
2001-11-04 15:14:57 +01:00
select yearweek('1981-12-31',1),yearweek('1982-01-01',1),yearweek('1982-12-31',1),yearweek('1983-01-01',1);
2000-12-28 02:56:38 +01:00
yearweek('1981-12-31',1) yearweek('1982-01-01',1) yearweek('1982-12-31',1) yearweek('1983-01-01',1)
198153 198153 198252 198252
2001-11-04 15:14:57 +01:00
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
2002-11-12 11:42:42 +01:00
select week(19981231,2), week(19981231,3), week(20000101,2), week(20000101,3);
week(19981231,2) week(19981231,3) week(20000101,2) week(20000101,3)
52 53 52 52
select week(20001231,2),week(20001231,3);
week(20001231,2) week(20001231,3)
2003-12-07 12:10:21 +01:00
53 52
select week(19981231,0) as '0', week(19981231,1) as '1', week(19981231,2) as '2', week(19981231,3) as '3', week(19981231,4) as '4', week(19981231,5) as '5', week(19981231,6) as '6', week(19981231,7) as '7';
0 1 2 3 4 5 6 7
52 53 52 53 52 52 52 52
select week(20000101,0) as '0', week(20000101,1) as '1', week(20000101,2) as '2', week(20000101,3) as '3', week(20000101,4) as '4', week(20000101,5) as '5', week(20000101,6) as '6', week(20000101,7) as '7';
0 1 2 3 4 5 6 7
0 0 52 52 0 0 52 52
select week(20000106,0) as '0', week(20000106,1) as '1', week(20000106,2) as '2', week(20000106,3) as '3', week(20000106,4) as '4', week(20000106,5) as '5', week(20000106,6) as '6', week(20000106,7) as '7';
0 1 2 3 4 5 6 7
1 1 1 1 1 1 1 1
select week(20001231,0) as '0', week(20001231,1) as '1', week(20001231,2) as '2', week(20001231,3) as '3', week(20001231,4) as '4', week(20001231,5) as '5', week(20001231,6) as '6', week(20001231,7) as '7';
0 1 2 3 4 5 6 7
53 52 53 52 53 52 1 52
select week(20010101,0) as '0', week(20010101,1) as '1', week(20010101,2) as '2', week(20010101,3) as '3', week(20010101,4) as '4', week(20010101,5) as '5', week(20010101,6) as '6', week(20010101,7) as '7';
0 1 2 3 4 5 6 7
0 1 53 1 1 1 1 1
select yearweek(20001231,0), yearweek(20001231,1), yearweek(20001231,2), yearweek(20001231,3), yearweek(20001231,4), yearweek(20001231,5), yearweek(20001231,6), yearweek(20001231,7);
yearweek(20001231,0) yearweek(20001231,1) yearweek(20001231,2) yearweek(20001231,3) yearweek(20001231,4) yearweek(20001231,5) yearweek(20001231,6) yearweek(20001231,7)
200053 200052 200053 200052 200101 200052 200101 200052
set default_week_format = 6;
select week(20001231), week(20001231,6);
week(20001231) week(20001231,6)
1 1
set default_week_format = 0;
2003-02-19 13:05:35 +01:00
set default_week_format = 2;
select week(20001231),week(20001231,2),week(20001231,0);
week(20001231) week(20001231,2) week(20001231,0)
2003-12-07 12:10:21 +01:00
53 53 53
2003-02-19 13:05:35 +01:00
set default_week_format = 0;
2001-11-04 15:14:57 +01:00
select date_format('1998-12-31','%x-%v'),date_format('1999-01-01','%x-%v');
2000-12-28 02:56:38 +01:00
date_format('1998-12-31','%x-%v') date_format('1999-01-01','%x-%v')
1998-53 1998-53
2001-11-04 15:14:57 +01:00
select date_format('1999-12-31','%x-%v'),date_format('2000-01-01','%x-%v');
2000-12-28 02:56:38 +01:00
date_format('1999-12-31','%x-%v') date_format('2000-01-01','%x-%v')
1999-52 1999-52
2001-11-04 15:14:57 +01:00
select dayname("1962-03-03"),dayname("1962-03-03")+0;
2000-12-28 02:56:38 +01:00
dayname("1962-03-03") dayname("1962-03-03")+0
Saturday 5
2001-11-04 15:14:57 +01:00
select monthname("1972-03-04"),monthname("1972-03-04")+0;
2000-12-28 02:56:38 +01:00
monthname("1972-03-04") monthname("1972-03-04")+0
March 3
2001-11-04 15:14:57 +01:00
select time_format(19980131000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
2000-12-28 02:56:38 +01:00
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
2001-11-04 15:14:57 +01:00
select time_format(19980131010203,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
2000-12-28 02:56:38 +01:00
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
2001-11-04 15:14:57 +01:00
select time_format(19980131131415,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
2000-12-28 02:56:38 +01:00
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
2001-11-04 15:14:57 +01:00
select time_format(19980131010015,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
2000-12-28 02:56:38 +01:00
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
2001-11-04 15:14:57 +01:00
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');
2000-12-28 02:56:38 +01:00
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
2001-11-04 15:14:57 +01:00
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');
2000-12-28 02:56:38 +01:00
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
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND)
1998-01-01 00:00:00
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL 1 MINUTE);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL 1 MINUTE)
1998-01-01 00:00:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL 1 HOUR);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL 1 HOUR)
1998-01-01 00:59:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL 1 DAY);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL 1 DAY)
1998-01-01 23:59:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL 1 MONTH);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL 1 MONTH)
1998-01-31 23:59:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL 1 YEAR);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL 1 YEAR)
1998-12-31 23:59:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" MINUTE_SECOND);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "1:1" MINUTE_SECOND)
1998-01-01 00:01:00
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" HOUR_MINUTE);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "1:1" HOUR_MINUTE)
1998-01-01 01:00:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" DAY_HOUR);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "1:1" DAY_HOUR)
1998-01-02 00:59:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "1 1" YEAR_MONTH);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "1 1" YEAR_MONTH)
1999-01-31 23:59:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "1:1:1" HOUR_SECOND);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "1:1:1" HOUR_SECOND)
1998-01-01 01:01:00
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "1 1:1" DAY_MINUTE);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "1 1:1" DAY_MINUTE)
1998-01-02 01:00:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "1 1:1:1" DAY_SECOND);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "1 1:1:1" DAY_SECOND)
1998-01-02 01:01:00
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 SECOND);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL 1 SECOND)
1997-12-31 23:59:59
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 MINUTE);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL 1 MINUTE)
1997-12-31 23:59:00
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 HOUR);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL 1 HOUR)
1997-12-31 23:00:00
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 DAY);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL 1 DAY)
1997-12-31 00:00:00
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 MONTH);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL 1 MONTH)
1997-12-01 00:00:00
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 YEAR);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL 1 YEAR)
1997-01-01 00:00:00
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" MINUTE_SECOND);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" MINUTE_SECOND)
1997-12-31 23:58:59
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" HOUR_MINUTE);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" HOUR_MINUTE)
1997-12-31 22:59:00
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" DAY_HOUR);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" DAY_HOUR)
1997-12-30 23:00:00
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1" YEAR_MONTH);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL "1 1" YEAR_MONTH)
1996-12-01 00:00:00
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1:1" HOUR_SECOND);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL "1:1:1" HOUR_SECOND)
1997-12-31 22:58:59
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1" DAY_MINUTE);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1" DAY_MINUTE)
1997-12-30 22:59:00
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1:1" DAY_SECOND);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1:1" DAY_SECOND)
1997-12-30 22:58:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL 100000 SECOND);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL 100000 SECOND)
1998-01-02 03:46:39
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL -100000 MINUTE);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL -100000 MINUTE)
1997-10-23 13:19:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL 100000 HOUR);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL 100000 HOUR)
2009-05-29 15:59:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL -100000 DAY);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL -100000 DAY)
1724-03-17 23:59:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL 100000 MONTH);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL 100000 MONTH)
NULL
2005-08-15 23:19:56 +02:00
Warnings:
Warning 1441 Datetime function: datetime field overflow
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL -100000 YEAR);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL -100000 YEAR)
NULL
2005-08-15 23:19:56 +02:00
Warnings:
Warning 1441 Datetime function: datetime field overflow
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "10000:1" MINUTE_SECOND);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "10000:1" MINUTE_SECOND)
1998-01-07 22:40:00
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "-10000:1" HOUR_MINUTE);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "-10000:1" HOUR_MINUTE)
1996-11-10 07:58:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "10000:1" DAY_HOUR);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "10000:1" DAY_HOUR)
2025-05-19 00:59:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "-100 1" YEAR_MONTH);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "-100 1" YEAR_MONTH)
1897-11-30 23:59:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "10000:99:99" HOUR_SECOND);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "10000:99:99" HOUR_SECOND)
1999-02-21 17:40:38
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL " -10000 99:99" DAY_MINUTE);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL " -10000 99:99" DAY_MINUTE)
1970-08-11 19:20:59
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL "10000 99:99:99" DAY_SECOND);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL "10000 99:99:99" DAY_SECOND)
2025-05-23 04:40:38
2001-11-04 15:14:57 +01:00
select "1997-12-31 23:59:59" + INTERVAL 1 SECOND;
2000-12-28 02:56:38 +01:00
"1997-12-31 23:59:59" + INTERVAL 1 SECOND
1998-01-01 00:00:00
2001-11-04 15:14:57 +01:00
select INTERVAL 1 DAY + "1997-12-31";
2000-12-28 02:56:38 +01:00
INTERVAL 1 DAY + "1997-12-31"
1998-01-01
2001-11-04 15:14:57 +01:00
select "1998-01-01 00:00:00" - INTERVAL 1 SECOND;
2000-12-28 02:56:38 +01:00
"1998-01-01 00:00:00" - INTERVAL 1 SECOND
1997-12-31 23:59:59
2001-11-04 15:14:57 +01:00
select date_sub("1998-01-02",INTERVAL 31 DAY);
2000-12-28 02:56:38 +01:00
date_sub("1998-01-02",INTERVAL 31 DAY)
1997-12-02
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31",INTERVAL 1 SECOND);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31",INTERVAL 1 SECOND)
1997-12-31 00:00:01
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31",INTERVAL 1 DAY);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31",INTERVAL 1 DAY)
1998-01-01
2001-11-04 15:14:57 +01:00
select date_add(NULL,INTERVAL 100000 SECOND);
2000-12-28 02:56:38 +01:00
date_add(NULL,INTERVAL 100000 SECOND)
NULL
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL NULL SECOND);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL NULL SECOND)
NULL
2001-11-04 15:14:57 +01:00
select date_add("1997-12-31 23:59:59",INTERVAL NULL MINUTE_SECOND);
2000-12-28 02:56:38 +01:00
date_add("1997-12-31 23:59:59",INTERVAL NULL MINUTE_SECOND)
NULL
2001-11-04 15:14:57 +01:00
select date_add("9999-12-31 23:59:59",INTERVAL 1 SECOND);
2000-12-28 02:56:38 +01:00
date_add("9999-12-31 23:59:59",INTERVAL 1 SECOND)
NULL
2005-08-15 23:19:56 +02:00
Warnings:
Warning 1441 Datetime function: datetime field overflow
2001-11-04 15:14:57 +01:00
select date_sub("0000-00-00 00:00:00",INTERVAL 1 SECOND);
2000-12-28 02:56:38 +01:00
date_sub("0000-00-00 00:00:00",INTERVAL 1 SECOND)
NULL
2005-04-04 15:43:25 +02:00
Warnings:
2005-12-02 12:01:44 +01:00
Warning 1292 Incorrect datetime value: '0000-00-00 00:00:00'
2001-11-04 15:14:57 +01:00
select date_add('1998-01-30',Interval 1 month);
2000-12-28 02:56:38 +01:00
date_add('1998-01-30',Interval 1 month)
1998-02-28
2001-11-04 15:14:57 +01:00
select date_add('1998-01-30',Interval '2:1' year_month);
2000-12-28 02:56:38 +01:00
date_add('1998-01-30',Interval '2:1' year_month)
2000-02-29
2001-11-04 15:14:57 +01:00
select date_add('1996-02-29',Interval '1' year);
2000-12-28 02:56:38 +01:00
date_add('1996-02-29',Interval '1' year)
1997-02-28
2001-11-04 15:14:57 +01:00
select extract(YEAR FROM "1999-01-02 10:11:12");
2000-12-28 02:56:38 +01:00
extract(YEAR FROM "1999-01-02 10:11:12")
1999
2001-11-04 15:14:57 +01:00
select extract(YEAR_MONTH FROM "1999-01-02");
2000-12-28 02:56:38 +01:00
extract(YEAR_MONTH FROM "1999-01-02")
199901
2001-11-04 15:14:57 +01:00
select extract(DAY FROM "1999-01-02");
2000-12-28 02:56:38 +01:00
extract(DAY FROM "1999-01-02")
2
2001-11-04 15:14:57 +01:00
select extract(DAY_HOUR FROM "1999-01-02 10:11:12");
2000-12-28 02:56:38 +01:00
extract(DAY_HOUR FROM "1999-01-02 10:11:12")
210
2001-11-04 15:14:57 +01:00
select extract(DAY_MINUTE FROM "02 10:11:12");
2000-12-28 02:56:38 +01:00
extract(DAY_MINUTE FROM "02 10:11:12")
21011
2001-11-04 15:14:57 +01:00
select extract(DAY_SECOND FROM "225 10:11:12");
2000-12-28 02:56:38 +01:00
extract(DAY_SECOND FROM "225 10:11:12")
2006-10-04 15:13:32 +02:00
8385959
Warnings:
Warning 1292 Truncated incorrect time value: '225 10:11:12'
2001-11-04 15:14:57 +01:00
select extract(HOUR FROM "1999-01-02 10:11:12");
2000-12-28 02:56:38 +01:00
extract(HOUR FROM "1999-01-02 10:11:12")
10
2001-11-04 15:14:57 +01:00
select extract(HOUR_MINUTE FROM "10:11:12");
2000-12-28 02:56:38 +01:00
extract(HOUR_MINUTE FROM "10:11:12")
1011
2001-11-04 15:14:57 +01:00
select extract(HOUR_SECOND FROM "10:11:12");
2000-12-28 02:56:38 +01:00
extract(HOUR_SECOND FROM "10:11:12")
101112
2001-11-04 15:14:57 +01:00
select extract(MINUTE FROM "10:11:12");
2000-12-28 02:56:38 +01:00
extract(MINUTE FROM "10:11:12")
11
2001-11-04 15:14:57 +01:00
select extract(MINUTE_SECOND FROM "10:11:12");
2000-12-28 02:56:38 +01:00
extract(MINUTE_SECOND FROM "10:11:12")
1112
2001-11-04 15:14:57 +01:00
select extract(SECOND FROM "1999-01-02 10:11:12");
2000-12-28 02:56:38 +01:00
extract(SECOND FROM "1999-01-02 10:11:12")
12
2001-11-04 15:14:57 +01:00
select extract(MONTH FROM "2001-02-00");
2001-05-23 01:40:24 +02:00
extract(MONTH FROM "2001-02-00")
2
2006-04-07 11:15:15 +02:00
SELECT EXTRACT(QUARTER FROM '2004-01-15') AS quarter;
quarter
1
SELECT EXTRACT(QUARTER FROM '2004-02-15') AS quarter;
quarter
1
SELECT EXTRACT(QUARTER FROM '2004-03-15') AS quarter;
quarter
1
SELECT EXTRACT(QUARTER FROM '2004-04-15') AS quarter;
quarter
2
SELECT EXTRACT(QUARTER FROM '2004-05-15') AS quarter;
quarter
2
SELECT EXTRACT(QUARTER FROM '2004-06-15') AS quarter;
quarter
2
SELECT EXTRACT(QUARTER FROM '2004-07-15') AS quarter;
quarter
3
SELECT EXTRACT(QUARTER FROM '2004-08-15') AS quarter;
quarter
3
SELECT EXTRACT(QUARTER FROM '2004-09-15') AS quarter;
quarter
3
SELECT EXTRACT(QUARTER FROM '2004-10-15') AS quarter;
quarter
4
SELECT EXTRACT(QUARTER FROM '2004-11-15') AS quarter;
quarter
4
SELECT EXTRACT(QUARTER FROM '2004-12-15') AS quarter;
quarter
4
2006-06-27 17:33:59 +02:00
SELECT DATE_SUB(str_to_date('9999-12-31 00:01:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE);
DATE_SUB(str_to_date('9999-12-31 00:01:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE)
9999-12-31 00:00:00
SELECT DATE_ADD(str_to_date('9999-12-30 23:59:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE);
DATE_ADD(str_to_date('9999-12-30 23:59:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE)
9999-12-31 00:00:00
2004-04-28 16:45:08 +02:00
SELECT "1900-01-01 00:00:00" + INTERVAL 2147483648 SECOND;
"1900-01-01 00:00:00" + INTERVAL 2147483648 SECOND
1968-01-20 03:14:08
SELECT "1900-01-01 00:00:00" + INTERVAL "1:2147483647" MINUTE_SECOND;
"1900-01-01 00:00:00" + INTERVAL "1:2147483647" MINUTE_SECOND
1968-01-20 03:15:07
SELECT "1900-01-01 00:00:00" + INTERVAL "100000000:214748364700" MINUTE_SECOND;
"1900-01-01 00:00:00" + INTERVAL "100000000:214748364700" MINUTE_SECOND
8895-03-27 22:11:40
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<37 SECOND;
"1900-01-01 00:00:00" + INTERVAL 1<<37 SECOND
6255-04-08 15:04:32
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<31 MINUTE;
"1900-01-01 00:00:00" + INTERVAL 1<<31 MINUTE
5983-01-24 02:08:00
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<20 HOUR;
"1900-01-01 00:00:00" + INTERVAL 1<<20 HOUR
2019-08-15 16:00:00
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<38 SECOND;
"1900-01-01 00:00:00" + INTERVAL 1<<38 SECOND
NULL
2005-08-15 23:19:56 +02:00
Warnings:
Warning 1441 Datetime function: datetime field overflow
2004-04-28 16:45:08 +02:00
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<33 MINUTE;
"1900-01-01 00:00:00" + INTERVAL 1<<33 MINUTE
NULL
2005-08-15 23:19:56 +02:00
Warnings:
Warning 1441 Datetime function: datetime field overflow
2004-04-28 16:45:08 +02:00
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<30 HOUR;
"1900-01-01 00:00:00" + INTERVAL 1<<30 HOUR
NULL
2005-08-15 23:19:56 +02:00
Warnings:
Warning 1441 Datetime function: datetime field overflow
2004-04-28 16:45:08 +02:00
SELECT "1900-01-01 00:00:00" + INTERVAL "1000000000:214748364700" MINUTE_SECOND;
"1900-01-01 00:00:00" + INTERVAL "1000000000:214748364700" MINUTE_SECOND
NULL
2005-08-15 23:19:56 +02:00
Warnings:
Warning 1441 Datetime function: datetime field overflow
2001-11-04 15:14:57 +01:00
create table t1 (ctime varchar(20));
insert into t1 values ('2001-01-12 12:23:40');
select ctime, hour(ctime) from t1;
2001-01-15 20:21:06 +01:00
ctime hour(ctime)
2001-01-12 12:23:40 12
2003-06-11 19:07:23 +02:00
select ctime from t1 where extract(MONTH FROM ctime) = 1 AND extract(YEAR FROM ctime) = 2001;
ctime
2001-01-12 12:23:40
2001-11-04 15:14:57 +01:00
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;
2001-01-31 03:47:25 +01:00
monthname(date)
NULL
January
2001-11-04 15:14:57 +01:00
select monthname(date) from t1 inner join t2 on t1.id = t2.id order by t1.id;
2001-01-31 03:47:25 +01:00
monthname(date)
NULL
January
2001-11-04 15:14:57 +01:00
drop table t1,t2;
2003-12-10 05:31:42 +01:00
CREATE TABLE t1 (updated text) ENGINE=MyISAM;
2001-11-04 15:14:57 +01:00
INSERT INTO t1 VALUES ('');
SELECT month(updated) from t1;
2001-04-09 20:08:56 +02:00
month(updated)
NULL
2004-06-18 08:11:31 +02:00
Warnings:
2005-12-02 12:01:44 +01:00
Warning 1292 Incorrect datetime value: ''
2001-11-04 15:14:57 +01:00
SELECT year(updated) from t1;
2001-04-09 20:08:56 +02:00
year(updated)
NULL
2004-06-18 08:11:31 +02:00
Warnings:
2005-12-02 12:01:44 +01:00
Warning 1292 Incorrect datetime value: ''
2001-11-04 15:14:57 +01:00
drop table t1;
2001-11-05 00:04:08 +01:00
create table t1 (d date, dt datetime, t timestamp, c char(10));
insert into t1 values ("0000-00-00", "0000-00-00", "0000-00-00", "0000-00-00");
select dayofyear("0000-00-00"),dayofyear(d),dayofyear(dt),dayofyear(t),dayofyear(c) from t1;
dayofyear("0000-00-00") dayofyear(d) dayofyear(dt) dayofyear(t) dayofyear(c)
NULL NULL NULL NULL NULL
2005-04-04 15:43:25 +02:00
Warnings:
2005-12-02 12:01:44 +01:00
Warning 1292 Incorrect datetime value: '0000-00-00'
Warning 1292 Incorrect datetime value: '0000-00-00'
2001-11-05 00:04:08 +01:00
select dayofmonth("0000-00-00"),dayofmonth(d),dayofmonth(dt),dayofmonth(t),dayofmonth(c) from t1;
dayofmonth("0000-00-00") dayofmonth(d) dayofmonth(dt) dayofmonth(t) dayofmonth(c)
0 0 0 0 0
select month("0000-00-00"),month(d),month(dt),month(t),month(c) from t1;
month("0000-00-00") month(d) month(dt) month(t) month(c)
0 0 0 0 0
select quarter("0000-00-00"),quarter(d),quarter(dt),quarter(t),quarter(c) from t1;
quarter("0000-00-00") quarter(d) quarter(dt) quarter(t) quarter(c)
0 0 0 0 0
select week("0000-00-00"),week(d),week(dt),week(t),week(c) from t1;
week("0000-00-00") week(d) week(dt) week(t) week(c)
NULL NULL NULL NULL NULL
2005-04-04 15:43:25 +02:00
Warnings:
2005-12-02 12:01:44 +01:00
Warning 1292 Incorrect datetime value: '0000-00-00'
Warning 1292 Incorrect datetime value: '0000-00-00'
2001-11-05 00:04:08 +01:00
select year("0000-00-00"),year(d),year(dt),year(t),year(c) from t1;
year("0000-00-00") year(d) year(dt) year(t) year(c)
0 0 0 0 0
select yearweek("0000-00-00"),yearweek(d),yearweek(dt),yearweek(t),yearweek(c) from t1;
yearweek("0000-00-00") yearweek(d) yearweek(dt) yearweek(t) yearweek(c)
NULL NULL NULL NULL NULL
2005-04-04 15:43:25 +02:00
Warnings:
2005-12-02 12:01:44 +01:00
Warning 1292 Incorrect datetime value: '0000-00-00'
Warning 1292 Incorrect datetime value: '0000-00-00'
2001-11-05 00:04:08 +01:00
select to_days("0000-00-00"),to_days(d),to_days(dt),to_days(t),to_days(c) from t1;
to_days("0000-00-00") to_days(d) to_days(dt) to_days(t) to_days(c)
NULL NULL NULL NULL NULL
2005-04-04 15:43:25 +02:00
Warnings:
2005-12-02 12:01:44 +01:00
Warning 1292 Incorrect datetime value: '0000-00-00'
Warning 1292 Incorrect datetime value: '0000-00-00'
2001-11-05 00:04:08 +01:00
select extract(MONTH FROM "0000-00-00"),extract(MONTH FROM d),extract(MONTH FROM dt),extract(MONTH FROM t),extract(MONTH FROM c) from t1;
extract(MONTH FROM "0000-00-00") extract(MONTH FROM d) extract(MONTH FROM dt) extract(MONTH FROM t) extract(MONTH FROM c)
0 0 0 0 0
drop table t1;
2002-11-05 21:45:42 +01:00
CREATE TABLE t1 ( start datetime default NULL);
INSERT INTO t1 VALUES ('2002-10-21 00:00:00'),('2002-10-28 00:00:00'),('2002-11-04 00:00:00');
2005-06-20 12:09:00 +02:00
CREATE TABLE t2 ( ctime1 timestamp NOT NULL, ctime2 timestamp NOT NULL);
2002-11-05 21:45:42 +01:00
INSERT INTO t2 VALUES (20021029165106,20021105164731);
CREATE TABLE t3 (ctime1 char(19) NOT NULL, ctime2 char(19) NOT NULL);
INSERT INTO t3 VALUES ("2002-10-29 16:51:06","2002-11-05 16:47:31");
select * from t1, t2 where t1.start between t2.ctime1 and t2.ctime2;
start ctime1 ctime2
2002-12-14 16:43:01 +01:00
2002-11-04 00:00:00 2002-10-29 16:51:06 2002-11-05 16:47:31
2002-11-05 21:45:42 +01:00
select * from t1, t2 where t1.start >= t2.ctime1 and t1.start <= t2.ctime2;
start ctime1 ctime2
2002-12-14 16:43:01 +01:00
2002-11-04 00:00:00 2002-10-29 16:51:06 2002-11-05 16:47:31
2002-11-05 21:45:42 +01:00
select * from t1, t3 where t1.start between t3.ctime1 and t3.ctime2;
start ctime1 ctime2
2002-11-04 00:00:00 2002-10-29 16:51:06 2002-11-05 16:47:31
drop table t1,t2,t3;
2003-12-19 15:25:50 +01:00
select @a:=FROM_UNIXTIME(1);
@a:=FROM_UNIXTIME(1)
1970-01-01 03:00:01
select unix_timestamp(@a);
unix_timestamp(@a)
1
select unix_timestamp('1969-12-01 19:00:01');
unix_timestamp('1969-12-01 19:00:01')
0
2004-12-30 19:18:10 +01:00
select from_unixtime(-1);
from_unixtime(-1)
2004-11-15 14:11:13 +01:00
NULL
2006-11-01 14:47:40 +01:00
select from_unixtime(2147483647);
from_unixtime(2147483647)
2038-01-19 06:14:07
select from_unixtime(2147483648);
from_unixtime(2147483648)
2004-11-15 14:11:13 +01:00
NULL
2004-12-30 19:18:10 +01:00
select from_unixtime(0);
from_unixtime(0)
1970-01-01 03:00:00
2006-11-01 14:47:40 +01:00
select unix_timestamp(from_unixtime(2147483647));
unix_timestamp(from_unixtime(2147483647))
2147483647
select unix_timestamp(from_unixtime(2147483648));
unix_timestamp(from_unixtime(2147483648))
NULL
select unix_timestamp('2039-01-20 01:00:00');
unix_timestamp('2039-01-20 01:00:00')
0
select unix_timestamp('1968-01-20 01:00:00');
unix_timestamp('1968-01-20 01:00:00')
0
select unix_timestamp('2038-02-10 01:00:00');
unix_timestamp('2038-02-10 01:00:00')
0
select unix_timestamp('1969-11-20 01:00:00');
unix_timestamp('1969-11-20 01:00:00')
0
select unix_timestamp('2038-01-20 01:00:00');
unix_timestamp('2038-01-20 01:00:00')
0
select unix_timestamp('1969-12-30 01:00:00');
unix_timestamp('1969-12-30 01:00:00')
0
select unix_timestamp('2038-01-17 12:00:00');
unix_timestamp('2038-01-17 12:00:00')
2147331600
select unix_timestamp('1970-01-01 03:00:01');
unix_timestamp('1970-01-01 03:00:01')
1
select unix_timestamp('2038-01-19 07:14:07');
unix_timestamp('2038-01-19 07:14:07')
0
2003-12-19 15:25:50 +01:00
CREATE TABLE t1 (datetime datetime, timestamp timestamp, date date, time time);
INSERT INTO t1 values ("2001-01-02 03:04:05", "2002-01-02 03:04:05", "2003-01-02", "06:07:08");
SELECT * from t1;
datetime timestamp date time
2001-01-02 03:04:05 2002-01-02 03:04:05 2003-01-02 06:07:08
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 1" YEAR_MONTH);
date_add("1997-12-31",INTERVAL "1 1" YEAR_MONTH)
1999-01-31
select date_add(datetime, INTERVAL 1 SECOND) from t1;
date_add(datetime, INTERVAL 1 SECOND)
2001-01-02 03:04:06
select date_add(datetime, INTERVAL 1 YEAR) from t1;
date_add(datetime, INTERVAL 1 YEAR)
2002-01-02 03:04:05
select date_add(date,INTERVAL 1 SECOND) from t1;
date_add(date,INTERVAL 1 SECOND)
2003-01-02 00:00:01
select date_add(date,INTERVAL 1 MINUTE) from t1;
date_add(date,INTERVAL 1 MINUTE)
2003-01-02 00:01:00
select date_add(date,INTERVAL 1 HOUR) from t1;
date_add(date,INTERVAL 1 HOUR)
2003-01-02 01:00:00
select date_add(date,INTERVAL 1 DAY) from t1;
date_add(date,INTERVAL 1 DAY)
2003-01-03
select date_add(date,INTERVAL 1 MONTH) from t1;
date_add(date,INTERVAL 1 MONTH)
2003-02-02
select date_add(date,INTERVAL 1 YEAR) from t1;
date_add(date,INTERVAL 1 YEAR)
2004-01-02
select date_add(date,INTERVAL "1:1" MINUTE_SECOND) from t1;
date_add(date,INTERVAL "1:1" MINUTE_SECOND)
2003-01-02 00:01:01
select date_add(date,INTERVAL "1:1" HOUR_MINUTE) from t1;
date_add(date,INTERVAL "1:1" HOUR_MINUTE)
2003-01-02 01:01:00
select date_add(date,INTERVAL "1:1" DAY_HOUR) from t1;
date_add(date,INTERVAL "1:1" DAY_HOUR)
2003-01-03 01:00:00
select date_add(date,INTERVAL "1 1" YEAR_MONTH) from t1;
date_add(date,INTERVAL "1 1" YEAR_MONTH)
2004-02-02
select date_add(date,INTERVAL "1:1:1" HOUR_SECOND) from t1;
date_add(date,INTERVAL "1:1:1" HOUR_SECOND)
2003-01-02 01:01:01
select date_add(date,INTERVAL "1 1:1" DAY_MINUTE) from t1;
date_add(date,INTERVAL "1 1:1" DAY_MINUTE)
2003-01-03 01:01:00
select date_add(date,INTERVAL "1 1:1:1" DAY_SECOND) from t1;
date_add(date,INTERVAL "1 1:1:1" DAY_SECOND)
2003-01-03 01:01:01
2003-12-19 19:47:22 +01:00
select date_add(date,INTERVAL "1" WEEK) from t1;
date_add(date,INTERVAL "1" WEEK)
2006-10-02 12:37:01 +02:00
2003-01-09
2003-12-19 19:47:22 +01:00
select date_add(date,INTERVAL "1" QUARTER) from t1;
date_add(date,INTERVAL "1" QUARTER)
2003-04-02
select timestampadd(MINUTE, 1, date) from t1;
timestampadd(MINUTE, 1, date)
2003-01-02 00:01:00
select timestampadd(WEEK, 1, date) from t1;
timestampadd(WEEK, 1, date)
2006-10-02 12:37:01 +02:00
2003-01-09
2003-12-19 19:47:22 +01:00
select timestampadd(SQL_TSI_SECOND, 1, date) from t1;
timestampadd(SQL_TSI_SECOND, 1, date)
2003-01-02 00:00:01
select timestampadd(SQL_TSI_FRAC_SECOND, 1, date) from t1;
timestampadd(SQL_TSI_FRAC_SECOND, 1, date)
2003-01-02 00:00:00.000001
select timestampdiff(MONTH, '2001-02-01', '2001-05-01') as a;
a
3
select timestampdiff(YEAR, '2002-05-01', '2001-01-01') as a;
a
-1
select timestampdiff(QUARTER, '2002-05-01', '2001-01-01') as a;
a
-5
select timestampdiff(MONTH, '2000-03-28', '2000-02-29') as a;
a
0
select timestampdiff(MONTH, '1991-03-28', '2000-02-29') as a;
a
107
select timestampdiff(SQL_TSI_WEEK, '2001-02-01', '2001-05-01') as a;
a
12
select timestampdiff(SQL_TSI_HOUR, '2001-02-01', '2001-05-01') as a;
a
2136
select timestampdiff(SQL_TSI_DAY, '2001-02-01', '2001-05-01') as a;
a
89
select timestampdiff(SQL_TSI_MINUTE, '2001-02-01 12:59:59', '2001-05-01 12:58:59') as a;
a
128159
select timestampdiff(SQL_TSI_SECOND, '2001-02-01 12:59:59', '2001-05-01 12:58:58') as a;
a
7689539
select timestampdiff(SQL_TSI_FRAC_SECOND, '2001-02-01 12:59:59.120000', '2001-05-01 12:58:58.119999') as a;
a
7689538999999
select timestampdiff(SQL_TSI_DAY, '1986-02-01', '1986-03-01') as a1,
timestampdiff(SQL_TSI_DAY, '1900-02-01', '1900-03-01') as a2,
timestampdiff(SQL_TSI_DAY, '1996-02-01', '1996-03-01') as a3,
timestampdiff(SQL_TSI_DAY, '2000-02-01', '2000-03-01') as a4;
a1 a2 a3 a4
28 28 29 29
2006-07-29 05:51:17 +02:00
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:27');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:27')
0
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:28');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:28')
1
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:29');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:29')
1
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:27');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:27')
1
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:28');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:28')
2
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:29');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:29')
2
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:27');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:27')
0
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:28');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:28')
1
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:29');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:29')
1
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:27');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:27')
1
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:28');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:28')
2
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:29');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:29')
2
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:27');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:27')
0
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:28');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:28')
1
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:29');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:29')
1
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:27');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:27')
1
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:28');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:28')
2
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:29');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:29')
2
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:27');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:27')
0
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:28');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:28')
1
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:29');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:29')
1
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:27');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:27')
1
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:28');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:28')
2
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:29');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:29')
2
2002-12-14 16:43:01 +01:00
select date_add(time,INTERVAL 1 SECOND) from t1;
date_add(time,INTERVAL 1 SECOND)
2004-06-21 09:21:20 +02:00
NULL
2004-06-21 10:27:40 +02:00
Warnings:
2005-12-02 12:01:44 +01:00
Warning 1264 Out of range value for column 'time' at row 1
2002-12-14 16:43:01 +01:00
drop table t1;
2003-11-17 15:02:08 +01:00
select last_day('2000-02-05') as f1, last_day('2002-12-31') as f2,
last_day('2003-03-32') as f3, last_day('2003-04-01') as f4,
last_day('2001-01-01 01:01:01') as f5, last_day(NULL),
last_day('2001-02-12');
f1 f2 f3 f4 f5 last_day(NULL) last_day('2001-02-12')
2000-02-29 2002-12-31 NULL 2003-04-30 2001-01-31 NULL 2001-02-28
2004-06-18 08:11:31 +02:00
Warnings:
2005-12-02 12:01:44 +01:00
Warning 1292 Incorrect datetime value: '2003-03-32'
2004-03-15 15:28:21 +01:00
create table t1 select last_day('2000-02-05') as a,
from_days(to_days("960101")) as b;
2003-11-17 15:02:08 +01:00
describe t1;
Field Type Null Key Default Extra
2004-12-10 10:07:11 +01:00
a date NO 0000-00-00
2004-03-15 15:28:21 +01:00
b date YES NULL
2003-11-17 15:02:08 +01:00
select * from t1;
2004-03-15 15:28:21 +01:00
a b
2000-02-29 1996-01-01
2003-11-17 15:02:08 +01:00
drop table t1;
2004-03-15 15:28:21 +01:00
select last_day('2000-02-05') as a,
from_days(to_days("960101")) as b;
a b
2000-02-29 1996-01-01
select date_add(last_day("1997-12-1"), INTERVAL 1 DAY);
date_add(last_day("1997-12-1"), INTERVAL 1 DAY)
1998-01-01
select length(last_day("1997-12-1"));
length(last_day("1997-12-1"))
10
select last_day("1997-12-1")+0;
last_day("1997-12-1")+0
19971231
select last_day("1997-12-1")+0.0;
last_day("1997-12-1")+0.0
19971231.0
2003-08-11 21:43:01 +02:00
select strcmp(date_sub(localtimestamp(), interval 3 hour), utc_timestamp())=0;
strcmp(date_sub(localtimestamp(), interval 3 hour), utc_timestamp())=0
1
select strcmp(date_format(date_sub(localtimestamp(), interval 3 hour),"%T"), utc_time())=0;
strcmp(date_format(date_sub(localtimestamp(), interval 3 hour),"%T"), utc_time())=0
1
select strcmp(date_format(date_sub(localtimestamp(), interval 3 hour),"%Y-%m-%d"), utc_date())=0;
strcmp(date_format(date_sub(localtimestamp(), interval 3 hour),"%Y-%m-%d"), utc_date())=0
1
select strcmp(date_format(utc_timestamp(),"%T"), utc_time())=0;
strcmp(date_format(utc_timestamp(),"%T"), utc_time())=0
1
select strcmp(date_format(utc_timestamp(),"%Y-%m-%d"), utc_date())=0;
strcmp(date_format(utc_timestamp(),"%Y-%m-%d"), utc_date())=0
1
select strcmp(concat(utc_date(),' ',utc_time()),utc_timestamp())=0;
strcmp(concat(utc_date(),' ',utc_time()),utc_timestamp())=0
1
2003-10-30 11:57:26 +01:00
explain extended select period_add("9602",-12),period_diff(199505,"9404"),from_days(to_days("960101")),dayofmonth("1997-01-02"), month("1997-01-02"), monthname("1972-03-04"),dayofyear("0000-00-00"),HOUR("1997-03-03 23:03:22"),MINUTE("23:03:22"),SECOND(230322),QUARTER(980303),WEEK("1998-03-03"),yearweek("2000-01-01",1),week(19950101,1),year("98-02-03"),weekday(curdate())-weekday(now()),dayname("1962-03-03"),unix_timestamp(),sec_to_time(time_to_sec("0:30:47")/6.21),curtime(),utc_time(),curdate(),utc_date(),utc_timestamp(),date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w"),from_unixtime(unix_timestamp("1994-03-02 10:11:12")),"1997-12-31 23:59:59" + INTERVAL 1 SECOND,"1998-01-01 00:00:00" - INTERVAL 1 SECOND,INTERVAL 1 DAY + "1997-12-31", extract(YEAR FROM "1999-01-02 10:11:12"),date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND);
2006-07-28 19:27:01 +02:00
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
2003-10-30 11:57:26 +01:00
Warnings:
2006-06-27 19:28:32 +02:00
Note 1003 select period_add(_latin1'9602',-(12)) AS `period_add("9602",-12)`,period_diff(199505,_latin1'9404') AS `period_diff(199505,"9404")`,from_days(to_days(_latin1'960101')) AS `from_days(to_days("960101"))`,dayofmonth(_latin1'1997-01-02') AS `dayofmonth("1997-01-02")`,month(_latin1'1997-01-02') AS `month("1997-01-02")`,monthname(_latin1'1972-03-04') AS `monthname("1972-03-04")`,dayofyear(_latin1'0000-00-00') AS `dayofyear("0000-00-00")`,hour(_latin1'1997-03-03 23:03:22') AS `HOUR("1997-03-03 23:03:22")`,minute(_latin1'23:03:22') AS `MINUTE("23:03:22")`,second(230322) AS `SECOND(230322)`,quarter(980303) AS `QUARTER(980303)`,week(_latin1'1998-03-03',0) AS `WEEK("1998-03-03")`,yearweek(_latin1'2000-01-01',1) AS `yearweek("2000-01-01",1)`,week(19950101,1) AS `week(19950101,1)`,year(_latin1'98-02-03') AS `year("98-02-03")`,(weekday(curdate()) - weekday(now())) AS `weekday(curdate())-weekday(now())`,dayname(_latin1'1962-03-03') AS `dayname("1962-03-03")`,unix_timestamp() AS `unix_timestamp()`,sec_to_time((time_to_sec(_latin1'0:30:47') / 6.21)) AS `sec_to_time(time_to_sec("0:30:47")/6.21)`,curtime() AS `curtime()`,utc_time() AS `utc_time()`,curdate() AS `curdate()`,utc_date() AS `utc_date()`,utc_timestamp() AS `utc_timestamp()`,date_format(_latin1'1997-01-02 03:04:05',_latin1'%M %W %D %Y %y %m %d %h %i %s %w') AS `date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w")`,from_unixtime(unix_timestamp(_latin1'1994-03-02 10:11:12')) AS `from_unixtime(unix_timestamp("1994-03-02 10:11:12"))`,(_latin1'1997-12-31 23:59:59' + interval 1 second) AS `"1997-12-31 23:59:59" + INTERVAL 1 SECOND`,(_latin1'1998-01-01 00:00:00' - interval 1 second) AS `"1998-01-01 00:00:00" - INTERVAL 1 SECOND`,(_latin1'1997-12-31' + interval 1 day) AS `INTERVAL 1 DAY + "1997-12-31"`,extract(year from _latin1'1999-01-02 10:11:12') AS `extract(YEAR FROM "1999-01-02 10:11:12")`,(_latin1'1997-12-31 23:59:59' + interval 1 second) AS `date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND)`
2007-08-01 10:28:08 +02:00
SET @TMP='2007-08-01 12:22:49';
2004-03-23 18:10:23 +01:00
CREATE TABLE t1 (d DATETIME);
2007-08-01 10:28:08 +02:00
INSERT INTO t1 VALUES ('2007-08-01 12:22:59');
INSERT INTO t1 VALUES ('2007-08-01 12:23:01');
INSERT INTO t1 VALUES ('2007-08-01 12:23:20');
2004-03-25 21:11:22 +01:00
SELECT count(*) FROM t1 WHERE d>FROM_DAYS(TO_DAYS(@TMP)) AND d<=FROM_DAYS(TO_DAYS(@TMP)+1);
2004-03-23 18:10:23 +01:00
count(*)
3
DROP TABLE t1;
2005-06-24 11:04:48 +02:00
select last_day('2005-00-00');
last_day('2005-00-00')
NULL
Warnings:
2006-05-16 03:32:24 +02:00
Warning 1292 Incorrect datetime value: '2005-00-00'
2005-06-24 11:04:48 +02:00
select last_day('2005-00-01');
last_day('2005-00-01')
NULL
Warnings:
2006-05-16 03:32:24 +02:00
Warning 1292 Incorrect datetime value: '2005-00-01'
2005-06-24 11:04:48 +02:00
select last_day('2005-01-00');
last_day('2005-01-00')
NULL
Warnings:
2006-05-16 03:32:24 +02:00
Warning 1292 Incorrect datetime value: '2005-01-00'
2006-04-25 11:34:19 +02:00
select monthname(str_to_date(null, '%m')), monthname(str_to_date(null, '%m')),
monthname(str_to_date(1, '%m')), monthname(str_to_date(0, '%m'));
monthname(str_to_date(null, '%m')) monthname(str_to_date(null, '%m')) monthname(str_to_date(1, '%m')) monthname(str_to_date(0, '%m'))
NULL NULL January NULL
2006-05-17 14:00:30 +02:00
set time_zone='-6:00';
create table t1(a timestamp);
insert into t1 values (19691231190001);
select * from t1;
a
1969-12-31 19:00:01
drop table t1;
2006-06-13 17:09:24 +02:00
create table t1(f1 date, f2 time, f3 datetime);
insert into t1 values ("2006-01-01", "12:01:01", "2006-01-01 12:01:01");
insert into t1 values ("2006-01-02", "12:01:02", "2006-01-02 12:01:02");
2006-09-07 22:59:34 +02:00
select f1 from t1 where f1 between CAST("2006-1-1" as date) and CAST(20060101 as date);
2006-06-13 17:09:24 +02:00
f1
2006-01-01
2006-09-07 22:59:34 +02:00
select f1 from t1 where f1 between cast("2006-1-1" as date) and cast("2006.1.1" as date);
2006-06-13 17:09:24 +02:00
f1
2006-01-01
2006-09-07 22:59:34 +02:00
select f1 from t1 where date(f1) between cast("2006-1-1" as date) and cast("2006.1.1" as date);
2006-06-13 17:09:24 +02:00
f1
2006-01-01
2006-09-07 22:59:34 +02:00
select f2 from t1 where f2 between cast("12:1:2" as time) and cast("12:2:2" as time);
2006-06-13 17:09:24 +02:00
f2
12:01:02
2006-09-07 22:59:34 +02:00
select f2 from t1 where time(f2) between cast("12:1:2" as time) and cast("12:2:2" as time);
2006-06-13 17:09:24 +02:00
f2
12:01:02
2006-09-07 22:59:34 +02:00
select f3 from t1 where f3 between cast("2006-1-1 12:1:1" as datetime) and cast("2006-1-1 12:1:2" as datetime);
2006-06-13 17:09:24 +02:00
f3
2006-01-01 12:01:01
2006-09-07 22:59:34 +02:00
select f3 from t1 where timestamp(f3) between cast("2006-1-1 12:1:1" as datetime) and cast("2006-1-1 12:1:2" as datetime);
2006-06-13 17:09:24 +02:00
f3
2006-01-01 12:01:01
2006-09-07 22:59:34 +02:00
select f1 from t1 where cast("2006-1-1" as date) between f1 and f3;
2006-06-13 17:09:24 +02:00
f1
2006-01-01
2006-09-07 22:59:34 +02:00
select f1 from t1 where cast("2006-1-1" as date) between date(f1) and date(f3);
2006-06-13 17:09:24 +02:00
f1
2006-01-01
2006-09-18 12:14:27 +02:00
select f1 from t1 where cast("2006-1-1" as date) between f1 and cast('zzz' as date);
2006-06-13 17:09:24 +02:00
f1
Warnings:
2006-09-18 16:30:51 +02:00
Warning 1292 Incorrect datetime value: 'zzz'
Warning 1292 Incorrect datetime value: 'zzz'
2006-06-13 17:09:24 +02:00
select f1 from t1 where makedate(2006,1) between date(f1) and date(f3);
f1
2006-01-01
select f1 from t1 where makedate(2006,2) between date(f1) and date(f3);
f1
2006-01-02
drop table t1;
2006-06-25 22:04:11 +02:00
create table t1 select now() - now(), curtime() - curtime(),
2006-05-02 15:00:44 +02:00
sec_to_time(1) + 0, from_unixtime(1) + 0;
2006-06-25 22:04:11 +02:00
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`now() - now()` double(23,6) NOT NULL DEFAULT '0.000000',
`curtime() - curtime()` double(23,6) NOT NULL DEFAULT '0.000000',
`sec_to_time(1) + 0` double(23,6) DEFAULT NULL,
`from_unixtime(1) + 0` double(23,6) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
2006-10-04 15:13:32 +02:00
SELECT SEC_TO_TIME(3300000);
SEC_TO_TIME(3300000)
838:59:59
Warnings:
Warning 1292 Truncated incorrect time value: '3300000'
SELECT SEC_TO_TIME(3300000)+0;
SEC_TO_TIME(3300000)+0
8385959.000000
Warnings:
Warning 1292 Truncated incorrect time value: '3300000'
SELECT SEC_TO_TIME(3600 * 4294967296);
SEC_TO_TIME(3600 * 4294967296)
838:59:59
Warnings:
Warning 1292 Truncated incorrect time value: '15461882265600'
SELECT TIME_TO_SEC('916:40:00');
TIME_TO_SEC('916:40:00')
3020399
Warnings:
Warning 1292 Truncated incorrect time value: '916:40:00'
SELECT ADDTIME('500:00:00', '416:40:00');
ADDTIME('500:00:00', '416:40:00')
838:59:59
Warnings:
Warning 1292 Truncated incorrect time value: '916:40:00'
SELECT ADDTIME('916:40:00', '416:40:00');
ADDTIME('916:40:00', '416:40:00')
838:59:59
Warnings:
Warning 1292 Truncated incorrect time value: '916:40:00'
Warning 1292 Truncated incorrect time value: '1255:39:59'
SELECT SUBTIME('916:40:00', '416:40:00');
SUBTIME('916:40:00', '416:40:00')
422:19:59
Warnings:
Warning 1292 Truncated incorrect time value: '916:40:00'
SELECT SUBTIME('-916:40:00', '416:40:00');
SUBTIME('-916:40:00', '416:40:00')
-838:59:59
Warnings:
Warning 1292 Truncated incorrect time value: '-916:40:00'
Warning 1292 Truncated incorrect time value: '-1255:39:59'
SELECT MAKETIME(916,0,0);
MAKETIME(916,0,0)
838:59:59
Warnings:
Warning 1292 Truncated incorrect time value: '916:00:00'
SELECT MAKETIME(4294967296, 0, 0);
MAKETIME(4294967296, 0, 0)
838:59:59
Warnings:
Warning 1292 Truncated incorrect time value: '4294967296:00:00'
SELECT MAKETIME(-4294967296, 0, 0);
MAKETIME(-4294967296, 0, 0)
-838:59:59
Warnings:
Warning 1292 Truncated incorrect time value: '-4294967296:00:00'
SELECT MAKETIME(0, 4294967296, 0);
MAKETIME(0, 4294967296, 0)
NULL
SELECT MAKETIME(0, 0, 4294967296);
MAKETIME(0, 0, 4294967296)
NULL
SELECT MAKETIME(CAST(-1 AS UNSIGNED), 0, 0);
MAKETIME(CAST(-1 AS UNSIGNED), 0, 0)
838:59:59
Warnings:
Warning 1292 Truncated incorrect time value: '18446744073709551615:00:00'
SELECT EXTRACT(HOUR FROM '100000:02:03');
EXTRACT(HOUR FROM '100000:02:03')
838
Warnings:
Warning 1292 Truncated incorrect time value: '100000:02:03'
CREATE TABLE t1(f1 TIME);
INSERT INTO t1 VALUES('916:00:00 a');
Warnings:
Warning 1265 Data truncated for column 'f1' at row 1
2006-10-17 22:22:44 +02:00
Warning 1264 Out of range value for column 'f1' at row 1
2006-10-04 15:13:32 +02:00
SELECT * FROM t1;
f1
838:59:59
DROP TABLE t1;
SELECT SEC_TO_TIME(CAST(-1 AS UNSIGNED));
SEC_TO_TIME(CAST(-1 AS UNSIGNED))
838:59:59
Warnings:
Warning 1292 Truncated incorrect time value: '18446744073709551615'
2006-09-04 09:13:40 +02:00
SET NAMES latin1;
SET character_set_results = NULL;
SHOW VARIABLES LIKE 'character_set_results';
Variable_name Value
character_set_results
CREATE TABLE testBug8868 (field1 DATE, field2 VARCHAR(32) CHARACTER SET BINARY);
INSERT INTO testBug8868 VALUES ('2006-09-04', 'abcd');
SELECT DATE_FORMAT(field1,'%b-%e %l:%i%p') as fmtddate, field2 FROM testBug8868;
fmtddate field2
Sep-4 12:00AM abcd
DROP TABLE testBug8868;
SET NAMES DEFAULT;
2006-08-10 15:37:24 +02:00
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 DAY)),'%H') As H)
union
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 DAY)),'%H') As H);
H
120
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 DAY)),'%k') As H)
union
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 DAY)),'%k') As H);
H
120
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 HOUR)),'%H') As H)
union
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 HOUR)),'%H') As H);
H
05
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 HOUR)),'%k') As H)
union
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 HOUR)),'%k') As H);
H
5
2006-11-09 13:17:50 +01:00
select last_day('0000-00-00');
last_day('0000-00-00')
NULL
2006-12-26 12:08:41 +01:00
select isnull(week(now() + 0)), isnull(week(now() + 0.2)),
week(20061108), week(20061108.01), week(20061108085411.000002);
isnull(week(now() + 0)) isnull(week(now() + 0.2)) week(20061108) week(20061108.01) week(20061108085411.000002)
0 0 45 45 45
2006-05-16 03:32:24 +02:00
End of 4.1 tests
2003-12-08 14:44:56 +01:00
explain extended select timestampdiff(SQL_TSI_WEEK, '2001-02-01', '2001-05-01') as a1,
timestampdiff(SQL_TSI_FRAC_SECOND, '2001-02-01 12:59:59.120000', '2001-05-01 12:58:58.119999') as a2;
2006-07-28 19:27:01 +02:00
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
2003-12-08 14:44:56 +01:00
Warnings:
2005-08-12 20:42:50 +02:00
Note 1003 select timestampdiff(WEEK,_latin1'2001-02-01',_latin1'2001-05-01') AS `a1`,timestampdiff(SECOND_FRAC,_latin1'2001-02-01 12:59:59.120000',_latin1'2001-05-01 12:58:58.119999') AS `a2`
2005-05-28 01:41:53 +02:00
select time_format('100:00:00', '%H %k %h %I %l');
time_format('100:00:00', '%H %k %h %I %l')
100 100 04 04 4
2006-11-17 21:30:28 +01:00
SET GLOBAL log_bin_trust_function_creators = 1;
2005-08-25 00:50:58 +02:00
create table t1 (a timestamp default '2005-05-05 01:01:01',
b timestamp default '2005-05-05 01:01:01');
This changeset is largely a handler cleanup changeset (WL#3281), but includes fixes and cleanups that was found necessary while testing the handler changes
Changes that requires code changes in other code of other storage engines.
(Note that all changes are very straightforward and one should find all issues
by compiling a --debug build and fixing all compiler errors and all
asserts in field.cc while running the test suite),
- New optional handler function introduced: reset()
This is called after every DML statement to make it easy for a handler to
statement specific cleanups.
(The only case it's not called is if force the file to be closed)
- handler::extra(HA_EXTRA_RESET) is removed. Code that was there before
should be moved to handler::reset()
- table->read_set contains a bitmap over all columns that are needed
in the query. read_row() and similar functions only needs to read these
columns
- table->write_set contains a bitmap over all columns that will be updated
in the query. write_row() and update_row() only needs to update these
columns.
The above bitmaps should now be up to date in all context
(including ALTER TABLE, filesort()).
The handler is informed of any changes to the bitmap after
fix_fields() by calling the virtual function
handler::column_bitmaps_signal(). If the handler does caching of
these bitmaps (instead of using table->read_set, table->write_set),
it should redo the caching in this code. as the signal() may be sent
several times, it's probably best to set a variable in the signal
and redo the caching on read_row() / write_row() if the variable was
set.
- Removed the read_set and write_set bitmap objects from the handler class
- Removed all column bit handling functions from the handler class.
(Now one instead uses the normal bitmap functions in my_bitmap.c instead
of handler dedicated bitmap functions)
- field->query_id is removed. One should instead instead check
table->read_set and table->write_set if a field is used in the query.
- handler::extra(HA_EXTRA_RETRIVE_ALL_COLS) and
handler::extra(HA_EXTRA_RETRIEVE_PRIMARY_KEY) are removed. One should now
instead use table->read_set to check for which columns to retrieve.
- If a handler needs to call Field->val() or Field->store() on columns
that are not used in the query, one should install a temporary
all-columns-used map while doing so. For this, we provide the following
functions:
my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->read_set);
field->val();
dbug_tmp_restore_column_map(table->read_set, old_map);
and similar for the write map:
my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->write_set);
field->val();
dbug_tmp_restore_column_map(table->write_set, old_map);
If this is not done, you will sooner or later hit a DBUG_ASSERT
in the field store() / val() functions.
(For not DBUG binaries, the dbug_tmp_restore_column_map() and
dbug_tmp_restore_column_map() are inline dummy functions and should
be optimized away be the compiler).
- If one needs to temporary set the column map for all binaries (and not
just to avoid the DBUG_ASSERT() in the Field::store() / Field::val()
methods) one should use the functions tmp_use_all_columns() and
tmp_restore_column_map() instead of the above dbug_ variants.
- All 'status' fields in the handler base class (like records,
data_file_length etc) are now stored in a 'stats' struct. This makes
it easier to know what status variables are provided by the base
handler. This requires some trivial variable names in the extra()
function.
- New virtual function handler::records(). This is called to optimize
COUNT(*) if (handler::table_flags() & HA_HAS_RECORDS()) is true.
(stats.records is not supposed to be an exact value. It's only has to
be 'reasonable enough' for the optimizer to be able to choose a good
optimization path).
- Non virtual handler::init() function added for caching of virtual
constants from engine.
- Removed has_transactions() virtual method. Now one should instead return
HA_NO_TRANSACTIONS in table_flags() if the table handler DOES NOT support
transactions.
- The 'xxxx_create_handler()' function now has a MEM_ROOT_root argument
that is to be used with 'new handler_name()' to allocate the handler
in the right area. The xxxx_create_handler() function is also
responsible for any initialization of the object before returning.
For example, one should change:
static handler *myisam_create_handler(TABLE_SHARE *table)
{
return new ha_myisam(table);
}
->
static handler *myisam_create_handler(TABLE_SHARE *table, MEM_ROOT *mem_root)
{
return new (mem_root) ha_myisam(table);
}
- New optional virtual function: use_hidden_primary_key().
This is called in case of an update/delete when
(table_flags() and HA_PRIMARY_KEY_REQUIRED_FOR_DELETE) is defined
but we don't have a primary key. This allows the handler to take precisions
in remembering any hidden primary key to able to update/delete any
found row. The default handler marks all columns to be read.
- handler::table_flags() now returns a ulonglong (to allow for more flags).
- New/changed table_flags()
- HA_HAS_RECORDS Set if ::records() is supported
- HA_NO_TRANSACTIONS Set if engine doesn't support transactions
- HA_PRIMARY_KEY_REQUIRED_FOR_DELETE
Set if we should mark all primary key columns for
read when reading rows as part of a DELETE
statement. If there is no primary key,
all columns are marked for read.
- HA_PARTIAL_COLUMN_READ Set if engine will not read all columns in some
cases (based on table->read_set)
- HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS
Renamed to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION.
- HA_DUPP_POS Renamed to HA_DUPLICATE_POS
- HA_REQUIRES_KEY_COLUMNS_FOR_DELETE
Set this if we should mark ALL key columns for
read when when reading rows as part of a DELETE
statement. In case of an update we will mark
all keys for read for which key part changed
value.
- HA_STATS_RECORDS_IS_EXACT
Set this if stats.records is exact.
(This saves us some extra records() calls
when optimizing COUNT(*))
- Removed table_flags()
- HA_NOT_EXACT_COUNT Now one should instead use HA_HAS_RECORDS if
handler::records() gives an exact count() and
HA_STATS_RECORDS_IS_EXACT if stats.records is exact.
- HA_READ_RND_SAME Removed (no one supported this one)
- Removed not needed functions ha_retrieve_all_cols() and ha_retrieve_all_pk()
- Renamed handler::dupp_pos to handler::dup_pos
- Removed not used variable handler::sortkey
Upper level handler changes:
- ha_reset() now does some overall checks and calls ::reset()
- ha_table_flags() added. This is a cached version of table_flags(). The
cache is updated on engine creation time and updated on open.
MySQL level changes (not obvious from the above):
- DBUG_ASSERT() added to check that column usage matches what is set
in the column usage bit maps. (This found a LOT of bugs in current
column marking code).
- In 5.1 before, all used columns was marked in read_set and only updated
columns was marked in write_set. Now we only mark columns for which we
need a value in read_set.
- Column bitmaps are created in open_binary_frm() and open_table_from_share().
(Before this was in table.cc)
- handler::table_flags() calls are replaced with handler::ha_table_flags()
- For calling field->val() you must have the corresponding bit set in
table->read_set. For calling field->store() you must have the
corresponding bit set in table->write_set. (There are asserts in
all store()/val() functions to catch wrong usage)
- thd->set_query_id is renamed to thd->mark_used_columns and instead
of setting this to an integer value, this has now the values:
MARK_COLUMNS_NONE, MARK_COLUMNS_READ, MARK_COLUMNS_WRITE
Changed also all variables named 'set_query_id' to mark_used_columns.
- In filesort() we now inform the handler of exactly which columns are needed
doing the sort and choosing the rows.
- The TABLE_SHARE object has a 'all_set' column bitmap one can use
when one needs a column bitmap with all columns set.
(This is used for table->use_all_columns() and other places)
- The TABLE object has 3 column bitmaps:
- def_read_set Default bitmap for columns to be read
- def_write_set Default bitmap for columns to be written
- tmp_set Can be used as a temporary bitmap when needed.
The table object has also two pointer to bitmaps read_set and write_set
that the handler should use to find out which columns are used in which way.
- count() optimization now calls handler::records() instead of using
handler->stats.records (if (table_flags() & HA_HAS_RECORDS) is true).
- Added extra argument to Item::walk() to indicate if we should also
traverse sub queries.
- Added TABLE parameter to cp_buffer_from_ref()
- Don't close tables created with CREATE ... SELECT but keep them in
the table cache. (Faster usage of newly created tables).
New interfaces:
- table->clear_column_bitmaps() to initialize the bitmaps for tables
at start of new statements.
- table->column_bitmaps_set() to set up new column bitmaps and signal
the handler about this.
- table->column_bitmaps_set_no_signal() for some few cases where we need
to setup new column bitmaps but don't signal the handler (as the handler
has already been signaled about these before). Used for the momement
only in opt_range.cc when doing ROR scans.
- table->use_all_columns() to install a bitmap where all columns are marked
as use in the read and the write set.
- table->default_column_bitmaps() to install the normal read and write
column bitmaps, but not signaling the handler about this.
This is mainly used when creating TABLE instances.
- table->mark_columns_needed_for_delete(),
table->mark_columns_needed_for_delete() and
table->mark_columns_needed_for_insert() to allow us to put additional
columns in column usage maps if handler so requires.
(The handler indicates what it neads in handler->table_flags())
- table->prepare_for_position() to allow us to tell handler that it
needs to read primary key parts to be able to store them in
future table->position() calls.
(This replaces the table->file->ha_retrieve_all_pk function)
- table->mark_auto_increment_column() to tell handler are going to update
columns part of any auto_increment key.
- table->mark_columns_used_by_index() to mark all columns that is part of
an index. It will also send extra(HA_EXTRA_KEYREAD) to handler to allow
it to quickly know that it only needs to read colums that are part
of the key. (The handler can also use the column map for detecting this,
but simpler/faster handler can just monitor the extra() call).
- table->mark_columns_used_by_index_no_reset() to in addition to other columns,
also mark all columns that is used by the given key.
- table->restore_column_maps_after_mark_index() to restore to default
column maps after a call to table->mark_columns_used_by_index().
- New item function register_field_in_read_map(), for marking used columns
in table->read_map. Used by filesort() to mark all used columns
- Maintain in TABLE->merge_keys set of all keys that are used in query.
(Simplices some optimization loops)
- Maintain Field->part_of_key_not_clustered which is like Field->part_of_key
but the field in the clustered key is not assumed to be part of all index.
(used in opt_range.cc for faster loops)
- dbug_tmp_use_all_columns(), dbug_tmp_restore_column_map()
tmp_use_all_columns() and tmp_restore_column_map() functions to temporally
mark all columns as usable. The 'dbug_' version is primarily intended
inside a handler when it wants to just call Field:store() & Field::val()
functions, but don't need the column maps set for any other usage.
(ie:: bitmap_is_set() is never called)
- We can't use compare_records() to skip updates for handlers that returns
a partial column set and the read_set doesn't cover all columns in the
write set. The reason for this is that if we have a column marked only for
write we can't in the MySQL level know if the value changed or not.
The reason this worked before was that MySQL marked all to be written
columns as also to be read. The new 'optimal' bitmaps exposed this 'hidden
bug'.
- open_table_from_share() does not anymore setup temporary MEM_ROOT
object as a thread specific variable for the handler. Instead we
send the to-be-used MEMROOT to get_new_handler().
(Simpler, faster code)
Bugs fixed:
- Column marking was not done correctly in a lot of cases.
(ALTER TABLE, when using triggers, auto_increment fields etc)
(Could potentially result in wrong values inserted in table handlers
relying on that the old column maps or field->set_query_id was correct)
Especially when it comes to triggers, there may be cases where the
old code would cause lost/wrong values for NDB and/or InnoDB tables.
- Split thd->options flag OPTION_STATUS_NO_TRANS_UPDATE to two flags:
OPTION_STATUS_NO_TRANS_UPDATE and OPTION_KEEP_LOG.
This allowed me to remove some wrong warnings about:
"Some non-transactional changed tables couldn't be rolled back"
- Fixed handling of INSERT .. SELECT and CREATE ... SELECT that wrongly reset
(thd->options & OPTION_STATUS_NO_TRANS_UPDATE) which caused us to loose
some warnings about
"Some non-transactional changed tables couldn't be rolled back")
- Fixed use of uninitialized memory in ha_ndbcluster.cc::delete_table()
which could cause delete_table to report random failures.
- Fixed core dumps for some tests when running with --debug
- Added missing FN_LIBCHAR in mysql_rm_tmp_tables()
(This has probably caused us to not properly remove temporary files after
crash)
- slow_logs was not properly initialized, which could maybe cause
extra/lost entries in slow log.
- If we get an duplicate row on insert, change column map to read and
write all columns while retrying the operation. This is required by
the definition of REPLACE and also ensures that fields that are only
part of UPDATE are properly handled. This fixed a bug in NDB and
REPLACE where REPLACE wrongly copied some column values from the replaced
row.
- For table handler that doesn't support NULL in keys, we would give an error
when creating a primary key with NULL fields, even after the fields has been
automaticly converted to NOT NULL.
- Creating a primary key on a SPATIAL key, would fail if field was not
declared as NOT NULL.
Cleanups:
- Removed not used condition argument to setup_tables
- Removed not needed item function reset_query_id_processor().
- Field->add_index is removed. Now this is instead maintained in
(field->flags & FIELD_IN_ADD_INDEX)
- Field->fieldnr is removed (use field->field_index instead)
- New argument to filesort() to indicate that it should return a set of
row pointers (not used columns). This allowed me to remove some references
to sql_command in filesort and should also enable us to return column
results in some cases where we couldn't before.
- Changed column bitmap handling in opt_range.cc to be aligned with TABLE
bitmap, which allowed me to use bitmap functions instead of looping over
all fields to create some needed bitmaps. (Faster and smaller code)
- Broke up found too long lines
- Moved some variable declaration at start of function for better code
readability.
- Removed some not used arguments from functions.
(setup_fields(), mysql_prepare_insert_check_table())
- setup_fields() now takes an enum instead of an int for marking columns
usage.
- For internal temporary tables, use handler::write_row(),
handler::delete_row() and handler::update_row() instead of
handler::ha_xxxx() for faster execution.
- Changed some constants to enum's and define's.
- Using separate column read and write sets allows for easier checking
of timestamp field was set by statement.
- Remove calls to free_io_cache() as this is now done automaticly in ha_reset()
- Don't build table->normalized_path as this is now identical to table->path
(after bar's fixes to convert filenames)
- Fixed some missed DBUG_PRINT(.."%lx") to use "0x%lx" to make it easier to
do comparision with the 'convert-dbug-for-diff' tool.
Things left to do in 5.1:
- We wrongly log failed CREATE TABLE ... SELECT in some cases when using
row based logging (as shown by testcase binlog_row_mix_innodb_myisam.result)
Mats has promised to look into this.
- Test that my fix for CREATE TABLE ... SELECT is indeed correct.
(I added several test cases for this, but in this case it's better that
someone else also tests this throughly).
Lars has promosed to do this.
2006-06-04 17:52:22 +02:00
drop function if exists t_slow_sysdate;
2005-08-25 00:50:58 +02:00
create function t_slow_sysdate() returns timestamp
begin
do sleep(2);
return sysdate();
end;
//
insert into t1 set a = sysdate(), b = t_slow_sysdate();//
create trigger t_before before insert on t1
for each row begin
set new.b = t_slow_sysdate();
end
//
insert into t1 set a = sysdate();
select a != b from t1;
a != b
1
1
drop trigger t_before;
drop function t_slow_sysdate;
drop table t1;
2006-11-17 21:30:28 +01:00
SET GLOBAL log_bin_trust_function_creators = 0;
2005-08-25 00:50:58 +02:00
create table t1 (a datetime, i int, b datetime);
insert into t1 select sysdate(), sleep(1), sysdate() from dual;
select a != b from t1;
a != b
1
drop table t1;
create procedure t_sysdate()
begin
select sysdate() into @a;
do sleep(2);
select sysdate() into @b;
select @a != @b;
end;
//
call t_sysdate();
@a != @b
1
drop procedure t_sysdate;
2005-10-14 00:32:31 +02:00
select timestampdiff(month,'2004-09-11','2004-09-11');
timestampdiff(month,'2004-09-11','2004-09-11')
0
select timestampdiff(month,'2004-09-11','2005-09-11');
timestampdiff(month,'2004-09-11','2005-09-11')
12
select timestampdiff(month,'2004-09-11','2006-09-11');
timestampdiff(month,'2004-09-11','2006-09-11')
24
select timestampdiff(month,'2004-09-11','2007-09-11');
timestampdiff(month,'2004-09-11','2007-09-11')
36
select timestampdiff(month,'2005-09-11','2004-09-11');
timestampdiff(month,'2005-09-11','2004-09-11')
-12
select timestampdiff(month,'2005-09-11','2003-09-11');
timestampdiff(month,'2005-09-11','2003-09-11')
-24
select timestampdiff(month,'2004-02-28','2005-02-28');
timestampdiff(month,'2004-02-28','2005-02-28')
12
select timestampdiff(month,'2004-02-29','2005-02-28');
timestampdiff(month,'2004-02-29','2005-02-28')
11
select timestampdiff(month,'2004-02-28','2005-02-28');
timestampdiff(month,'2004-02-28','2005-02-28')
12
select timestampdiff(month,'2004-03-29','2005-03-28');
timestampdiff(month,'2004-03-29','2005-03-28')
11
select timestampdiff(month,'2003-02-28','2004-02-29');
timestampdiff(month,'2003-02-28','2004-02-29')
12
select timestampdiff(month,'2003-02-28','2005-02-28');
timestampdiff(month,'2003-02-28','2005-02-28')
24
select timestampdiff(month,'1999-09-11','2001-10-10');
timestampdiff(month,'1999-09-11','2001-10-10')
24
select timestampdiff(month,'1999-09-11','2001-9-11');
timestampdiff(month,'1999-09-11','2001-9-11')
24
select timestampdiff(year,'1999-09-11','2001-9-11');
timestampdiff(year,'1999-09-11','2001-9-11')
2
select timestampdiff(year,'2004-02-28','2005-02-28');
timestampdiff(year,'2004-02-28','2005-02-28')
1
select timestampdiff(year,'2004-02-29','2005-02-28');
timestampdiff(year,'2004-02-29','2005-02-28')
0
2006-04-11 19:03:37 +02:00
CREATE TABLE t1 (id int NOT NULL PRIMARY KEY, day date);
CREATE TABLE t2 (id int NOT NULL PRIMARY KEY, day date);
INSERT INTO t1 VALUES
(1, '2005-06-01'), (2, '2005-02-01'), (3, '2005-07-01');
INSERT INTO t2 VALUES
(1, '2005-08-01'), (2, '2005-06-15'), (3, '2005-07-15');
SELECT * FROM t1, t2
WHERE t1.day BETWEEN
'2005.09.01' - INTERVAL 6 MONTH AND t2.day;
id day id day
1 2005-06-01 1 2005-08-01
3 2005-07-01 1 2005-08-01
1 2005-06-01 2 2005-06-15
1 2005-06-01 3 2005-07-15
3 2005-07-01 3 2005-07-15
SELECT * FROM t1, t2
WHERE CAST(t1.day AS DATE) BETWEEN
'2005.09.01' - INTERVAL 6 MONTH AND t2.day;
id day id day
1 2005-06-01 1 2005-08-01
3 2005-07-01 1 2005-08-01
1 2005-06-01 2 2005-06-15
1 2005-06-01 3 2005-07-15
3 2005-07-01 3 2005-07-15
DROP TABLE t1,t2;
2006-06-22 20:23:22 +02:00
set time_zone= @@global.time_zone;
2006-10-17 13:30:49 +02:00
select str_to_date('10:00 PM', '%h:%i %p') + INTERVAL 10 MINUTE;
str_to_date('10:00 PM', '%h:%i %p') + INTERVAL 10 MINUTE
NULL
2007-03-02 15:23:13 +01:00
create table t1 (field DATE);
insert into t1 values ('2006-11-06');
select * from t1 where field < '2006-11-06 04:08:36.0';
field
2006-11-06
select * from t1 where field = '2006-11-06 04:08:36.0';
field
select * from t1 where field = '2006-11-06';
field
2006-11-06
select * from t1 where CAST(field as DATETIME) < '2006-11-06 04:08:36.0';
field
2006-11-06
select * from t1 where CAST(field as DATE) < '2006-11-06 04:08:36.0';
field
2006-11-06
drop table t1;
2007-01-30 16:43:34 +01:00
CREATE TABLE t1 (a int, t1 time, t2 time, d date, PRIMARY KEY (a));
INSERT INTO t1 VALUES (1, '10:00:00', NULL, NULL),
(2, '11:00:00', '11:15:00', '1972-02-06');
SELECT t1, t2, SEC_TO_TIME( TIME_TO_SEC( t2 ) - TIME_TO_SEC( t1 ) ), QUARTER(d)
FROM t1;
t1 t2 SEC_TO_TIME( TIME_TO_SEC( t2 ) - TIME_TO_SEC( t1 ) ) QUARTER(d)
10:00:00 NULL NULL NULL
11:00:00 11:15:00 00:15:00 1
SELECT t1, t2, SEC_TO_TIME( TIME_TO_SEC( t2 ) - TIME_TO_SEC( t1 ) ), QUARTER(d)
FROM t1 ORDER BY a DESC;
t1 t2 SEC_TO_TIME( TIME_TO_SEC( t2 ) - TIME_TO_SEC( t1 ) ) QUARTER(d)
11:00:00 11:15:00 00:15:00 1
10:00:00 NULL NULL NULL
DROP TABLE t1;
2007-01-25 17:58:04 +01:00
SELECT TIME_FORMAT(SEC_TO_TIME(a),"%H:%i:%s") FROM (SELECT 3020399 AS a UNION SELECT 3020398 ) x GROUP BY 1;
TIME_FORMAT(SEC_TO_TIME(a),"%H:%i:%s")
838:59:58
838:59:59
2006-05-16 03:32:24 +02:00
End of 5.0 tests
select date_sub("0050-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0050-01-01 00:00:01",INTERVAL 2 SECOND)
2007-03-23 21:08:31 +01:00
0049-12-31 23:59:59
2006-05-16 03:32:24 +02:00
select date_sub("0199-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0199-01-01 00:00:01",INTERVAL 2 SECOND)
2007-03-23 21:08:31 +01:00
0198-12-31 23:59:59
2006-05-16 03:32:24 +02:00
select date_add("0199-12-31 23:59:59",INTERVAL 2 SECOND);
date_add("0199-12-31 23:59:59",INTERVAL 2 SECOND)
2007-03-23 21:08:31 +01:00
0200-01-01 00:00:01
2006-05-16 03:32:24 +02:00
select date_sub("0200-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0200-01-01 00:00:01",INTERVAL 2 SECOND)
0199-12-31 23:59:59
select date_sub("0200-01-01 00:00:01",INTERVAL 1 SECOND);
date_sub("0200-01-01 00:00:01",INTERVAL 1 SECOND)
0200-01-01 00:00:00
select date_sub("0200-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0200-01-01 00:00:01",INTERVAL 2 SECOND)
0199-12-31 23:59:59
select date_add("2001-01-01 23:59:59",INTERVAL -2000 YEAR);
date_add("2001-01-01 23:59:59",INTERVAL -2000 YEAR)
0001-01-01 23:59:59
select date_sub("50-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("50-01-01 00:00:01",INTERVAL 2 SECOND)
2049-12-31 23:59:59
select date_sub("90-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("90-01-01 00:00:01",INTERVAL 2 SECOND)
1989-12-31 23:59:59
select date_sub("0069-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0069-01-01 00:00:01",INTERVAL 2 SECOND)
2007-03-23 21:08:31 +01:00
0068-12-31 23:59:59
2006-05-16 03:32:24 +02:00
select date_sub("0169-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0169-01-01 00:00:01",INTERVAL 2 SECOND)
2007-03-23 21:08:31 +01:00
0168-12-31 23:59:59
2006-05-16 03:32:24 +02:00
End of 5.1 tests
