date_formats.result 20.7 KB
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drop table if exists t1;
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SHOW GLOBAL VARIABLES LIKE "%_format%";
Variable_name	Value
date_format	%d.%m.%Y
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datetime_format	%Y-%m-%d %H:%i:%s
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default_week_format	0
time_format	%H.%i.%s
SHOW SESSION VARIABLES LIKE "%_format%";
Variable_name	Value
date_format	%d.%m.%Y
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datetime_format	%Y-%m-%d %H:%i:%s
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default_week_format	0
time_format	%H.%i.%s
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SET time_format='%H%i%s';
SET time_format='%H:%i:%s.%f';
SET time_format='%h-%i-%s.%f%p';
SET time_format='%h:%i:%s.%f %p';
SET time_format='%h:%i:%s%p';
SET date_format='%Y%m%d';
SET date_format='%Y.%m.%d';
SET date_format='%d.%m.%Y';
SET date_format='%m-%d-%Y';
set datetime_format= '%Y%m%d%H%i%s';
set datetime_format= '%Y-%m-%d %H:%i:%s';
set datetime_format= '%m-%d-%y %H:%i:%s.%f';
set datetime_format= '%d-%m-%Y %h:%i:%s%p';
set datetime_format= '%H:%i:%s %Y-%m-%d';
set datetime_format= '%H:%i:%s.%f %m-%d-%Y';
set datetime_format= '%h:%i:%s %p %Y-%m-%d';
set datetime_format= '%h:%i:%s.%f %p %Y-%m-%d';
SHOW SESSION VARIABLES LIKE "%format";
Variable_name	Value
date_format	%m-%d-%Y
datetime_format	%h:%i:%s.%f %p %Y-%m-%d
default_week_format	0
time_format	%h:%i:%s%p
SET time_format='%h:%i:%s';
ERROR 42000: Variable 'time_format' can't be set to the value of '%h:%i:%s'
SET time_format='%H %i:%s';
ERROR 42000: Variable 'time_format' can't be set to the value of '%H %i:%s'
SET time_format='%H::%i:%s';
ERROR 42000: Variable 'time_format' can't be set to the value of '%H::%i:%s'
SET time_format='%H:%i:%s%f';
ERROR 42000: Variable 'time_format' can't be set to the value of '%H:%i:%s%f'
SET time_format='%H:%i.%f:%s';
ERROR 42000: Variable 'time_format' can't be set to the value of '%H:%i.%f:%s'
SET time_format='%H:%i:%s%p';
ERROR 42000: Variable 'time_format' can't be set to the value of '%H:%i:%s%p'
SET time_format='%h:%i:%s.%f %p %Y-%m-%d';
ERROR 42000: Variable 'time_format' can't be set to the value of '%h:%i:%s.%f %p %Y-%m-%d'
SET time_format='%H%i%s.%f';
ERROR 42000: Variable 'time_format' can't be set to the value of '%H%i%s.%f'
SET time_format='%H:%i-%s.%f';
ERROR 42000: Variable 'time_format' can't be set to the value of '%H:%i-%s.%f'
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SET date_format='%d.%m.%d';
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ERROR 42000: Variable 'date_format' can't be set to the value of '%d.%m.%d'
SET datetime_format='%h.%m.%y %d.%i.%s';
ERROR 42000: Variable 'datetime_format' can't be set to the value of '%h.%m.%y %d.%i.%s'
set datetime_format= '%H:%i:%s.%f %p %Y-%m-%d';
ERROR 42000: Variable 'datetime_format' can't be set to the value of '%H:%i:%s.%f %p %Y-%m-%d'
set GLOBAL datetime_format= '%H:%i:%s %Y-%m-%d';
SET SESSION datetime_format=default;
select @@global.datetime_format, @@session.datetime_format;
@@global.datetime_format	@@session.datetime_format
%H:%i:%s %Y-%m-%d	%H:%i:%s %Y-%m-%d
SET GLOBAL datetime_format=default;
SET SESSION datetime_format=default;
select @@global.datetime_format, @@session.datetime_format;
@@global.datetime_format	@@session.datetime_format
%Y-%m-%d %H:%i:%s	%Y-%m-%d %H:%i:%s
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SET GLOBAL date_format=default;
SET GLOBAL time_format=default;
SET GLOBAL datetime_format=default;
SET time_format=default;
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SET date_format=default;
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SET datetime_format=default;
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select str_to_date(concat('15-01-2001',' 2:59:58.999'),
concat('%d-%m-%Y',' ','%H:%i:%s.%f'));
str_to_date(concat('15-01-2001',' 2:59:58.999'),
concat('%d-%m-%Y',' ','%H:%i:%s.%f'))
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2001-01-15 02:59:58.999000
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create table t1 (date char(30), format char(30) not null);
insert into t1 values
('2003-01-02 10:11:12', '%Y-%m-%d %H:%i:%S'),
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('03-01-02 8:11:2.123456', '%y-%m-%d %H:%i:%S.%#'),
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('2003-01-02 10:11:12 PM', '%Y-%m-%d %h:%i:%S %p'),
('2003-01-02 01:11:12.12345AM', '%Y-%m-%d %h:%i:%S.%f%p'),
('2003-01-02 02:11:12.12345AM', '%Y-%m-%d %h:%i:%S.%f %p'),
('2003-01-02 12:11:12.12345 am', '%Y-%m-%d %h:%i:%S.%f%p'),
('2003-01-02 11:11:12Pm', '%Y-%m-%d %h:%i:%S%p'),
('10:20:10', '%H:%i:%s'),
('10:20:10', '%h:%i:%s.%f'),
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('10:20:10', '%T'),
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('10:20:10AM', '%h:%i:%s%p'),
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('10:20:10AM', '%r'),
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('10:20:10.44AM', '%h:%i:%s.%f%p'),
('15-01-2001 12:59:58', '%d-%m-%Y %H:%i:%S'),
('15 September 2001', '%d %M %Y'),
('15 SEPTEMB 2001', '%d %M %Y'),
('15 MAY 2001', '%d %b %Y'),
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('15th May 2001', '%D %b %Y'),
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('Sunday 15 MAY 2001', '%W %d %b %Y'),
('Sund 15 MAY 2001', '%W %d %b %Y'),
('Tuesday 00 2002', '%W %U %Y'),
('Thursday 53 1998', '%W %u %Y'),
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('Sunday 01 2001', '%W %v %x'),
('Tuesday 52 2001', '%W %V %X'),
('060 2004', '%j %Y'),
('4 53 1998', '%w %u %Y'),
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('15-01-2001', '%d-%m-%Y %H:%i:%S'),
('15-01-20', '%d-%m-%y'),
('15-2001-1', '%d-%Y-%c');
select date,format,str_to_date(date, format) as str_to_date from t1;
date	format	str_to_date
2003-01-02 10:11:12	%Y-%m-%d %H:%i:%S	2003-01-02 10:11:12
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03-01-02 8:11:2.123456	%y-%m-%d %H:%i:%S.%#	2003-01-02 08:11:02
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2003-01-02 10:11:12 PM	%Y-%m-%d %h:%i:%S %p	2003-01-02 22:11:12
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2003-01-02 01:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f%p	2003-01-02 01:11:12.123450
2003-01-02 02:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f %p	2003-01-02 02:11:12.123450
2003-01-02 12:11:12.12345 am	%Y-%m-%d %h:%i:%S.%f%p	2003-01-02 00:11:12.123450
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2003-01-02 11:11:12Pm	%Y-%m-%d %h:%i:%S%p	2003-01-02 23:11:12
10:20:10	%H:%i:%s	0000-00-00 10:20:10
10:20:10	%h:%i:%s.%f	0000-00-00 10:20:10
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10:20:10	%T	0000-00-00 10:20:10
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10:20:10AM	%h:%i:%s%p	0000-00-00 10:20:10
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10:20:10AM	%r	0000-00-00 10:20:10
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10:20:10.44AM	%h:%i:%s.%f%p	0000-00-00 10:20:10.440000
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15-01-2001 12:59:58	%d-%m-%Y %H:%i:%S	2001-01-15 12:59:58
15 September 2001	%d %M %Y	2001-09-15 00:00:00
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15 SEPTEMB 2001	%d %M %Y	2001-09-15 00:00:00
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15 MAY 2001	%d %b %Y	2001-05-15 00:00:00
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15th May 2001	%D %b %Y	2001-05-15 00:00:00
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Sunday 15 MAY 2001	%W %d %b %Y	2001-05-15 00:00:00
Sund 15 MAY 2001	%W %d %b %Y	2001-05-15 00:00:00
Tuesday 00 2002	%W %U %Y	2002-01-01 00:00:00
Thursday 53 1998	%W %u %Y	1998-12-31 00:00:00
137 138 139 140
Sunday 01 2001	%W %v %x	2001-01-07 00:00:00
Tuesday 52 2001	%W %V %X	2002-01-01 00:00:00
060 2004	%j %Y	2004-02-29 00:00:00
4 53 1998	%w %u %Y	1998-12-31 00:00:00
141 142 143 144 145 146
15-01-2001	%d-%m-%Y %H:%i:%S	2001-01-15 00:00:00
15-01-20	%d-%m-%y	2020-01-15 00:00:00
15-2001-1	%d-%Y-%c	2001-01-15 00:00:00
select date,format,concat('',str_to_date(date, format)) as con from t1;
date	format	con
2003-01-02 10:11:12	%Y-%m-%d %H:%i:%S	2003-01-02 10:11:12
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03-01-02 8:11:2.123456	%y-%m-%d %H:%i:%S.%#	2003-01-02 08:11:02
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2003-01-02 10:11:12 PM	%Y-%m-%d %h:%i:%S %p	2003-01-02 22:11:12
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2003-01-02 01:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f%p	2003-01-02 01:11:12.123450
2003-01-02 02:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f %p	2003-01-02 02:11:12.123450
2003-01-02 12:11:12.12345 am	%Y-%m-%d %h:%i:%S.%f%p	2003-01-02 00:11:12.123450
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2003-01-02 11:11:12Pm	%Y-%m-%d %h:%i:%S%p	2003-01-02 23:11:12
10:20:10	%H:%i:%s	0000-00-00 10:20:10
10:20:10	%h:%i:%s.%f	0000-00-00 10:20:10
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10:20:10	%T	0000-00-00 10:20:10
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10:20:10AM	%h:%i:%s%p	0000-00-00 10:20:10
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10:20:10AM	%r	0000-00-00 10:20:10
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10:20:10.44AM	%h:%i:%s.%f%p	0000-00-00 10:20:10.440000
159 160
15-01-2001 12:59:58	%d-%m-%Y %H:%i:%S	2001-01-15 12:59:58
15 September 2001	%d %M %Y	2001-09-15 00:00:00
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15 SEPTEMB 2001	%d %M %Y	2001-09-15 00:00:00
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15 MAY 2001	%d %b %Y	2001-05-15 00:00:00
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15th May 2001	%D %b %Y	2001-05-15 00:00:00
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Sunday 15 MAY 2001	%W %d %b %Y	2001-05-15 00:00:00
Sund 15 MAY 2001	%W %d %b %Y	2001-05-15 00:00:00
Tuesday 00 2002	%W %U %Y	2002-01-01 00:00:00
Thursday 53 1998	%W %u %Y	1998-12-31 00:00:00
168 169 170 171
Sunday 01 2001	%W %v %x	2001-01-07 00:00:00
Tuesday 52 2001	%W %V %X	2002-01-01 00:00:00
060 2004	%j %Y	2004-02-29 00:00:00
4 53 1998	%w %u %Y	1998-12-31 00:00:00
172 173 174 175 176 177
15-01-2001	%d-%m-%Y %H:%i:%S	2001-01-15 00:00:00
15-01-20	%d-%m-%y	2020-01-15 00:00:00
15-2001-1	%d-%Y-%c	2001-01-15 00:00:00
select date,format,cast(str_to_date(date, format) as datetime) as datetime from t1;
date	format	datetime
2003-01-02 10:11:12	%Y-%m-%d %H:%i:%S	2003-01-02 10:11:12
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03-01-02 8:11:2.123456	%y-%m-%d %H:%i:%S.%#	2003-01-02 08:11:02
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2003-01-02 10:11:12 PM	%Y-%m-%d %h:%i:%S %p	2003-01-02 22:11:12
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2003-01-02 01:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f%p	2003-01-02 01:11:12.123450
2003-01-02 02:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f %p	2003-01-02 02:11:12.123450
2003-01-02 12:11:12.12345 am	%Y-%m-%d %h:%i:%S.%f%p	2003-01-02 00:11:12.123450
183 184 185
2003-01-02 11:11:12Pm	%Y-%m-%d %h:%i:%S%p	2003-01-02 23:11:12
10:20:10	%H:%i:%s	0000-00-00 10:20:10
10:20:10	%h:%i:%s.%f	0000-00-00 10:20:10
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10:20:10	%T	0000-00-00 10:20:10
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10:20:10AM	%h:%i:%s%p	0000-00-00 10:20:10
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10:20:10AM	%r	0000-00-00 10:20:10
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10:20:10.44AM	%h:%i:%s.%f%p	0000-00-00 10:20:10.440000
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15-01-2001 12:59:58	%d-%m-%Y %H:%i:%S	2001-01-15 12:59:58
15 September 2001	%d %M %Y	2001-09-15 00:00:00
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15 SEPTEMB 2001	%d %M %Y	2001-09-15 00:00:00
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15 MAY 2001	%d %b %Y	2001-05-15 00:00:00
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15th May 2001	%D %b %Y	2001-05-15 00:00:00
195 196 197 198
Sunday 15 MAY 2001	%W %d %b %Y	2001-05-15 00:00:00
Sund 15 MAY 2001	%W %d %b %Y	2001-05-15 00:00:00
Tuesday 00 2002	%W %U %Y	2002-01-01 00:00:00
Thursday 53 1998	%W %u %Y	1998-12-31 00:00:00
199 200 201 202
Sunday 01 2001	%W %v %x	2001-01-07 00:00:00
Tuesday 52 2001	%W %V %X	2002-01-01 00:00:00
060 2004	%j %Y	2004-02-29 00:00:00
4 53 1998	%w %u %Y	1998-12-31 00:00:00
203 204 205 206 207 208
15-01-2001	%d-%m-%Y %H:%i:%S	2001-01-15 00:00:00
15-01-20	%d-%m-%y	2020-01-15 00:00:00
15-2001-1	%d-%Y-%c	2001-01-15 00:00:00
select date,format,DATE(str_to_date(date, format)) as date2 from t1;
date	format	date2
2003-01-02 10:11:12	%Y-%m-%d %H:%i:%S	2003-01-02
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03-01-02 8:11:2.123456	%y-%m-%d %H:%i:%S.%#	2003-01-02
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2003-01-02 10:11:12 PM	%Y-%m-%d %h:%i:%S %p	2003-01-02
2003-01-02 01:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f%p	2003-01-02
2003-01-02 02:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f %p	2003-01-02
2003-01-02 12:11:12.12345 am	%Y-%m-%d %h:%i:%S.%f%p	2003-01-02
2003-01-02 11:11:12Pm	%Y-%m-%d %h:%i:%S%p	2003-01-02
10:20:10	%H:%i:%s	0000-00-00
10:20:10	%h:%i:%s.%f	0000-00-00
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10:20:10	%T	0000-00-00
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10:20:10AM	%h:%i:%s%p	0000-00-00
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10:20:10AM	%r	0000-00-00
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10:20:10.44AM	%h:%i:%s.%f%p	0000-00-00
15-01-2001 12:59:58	%d-%m-%Y %H:%i:%S	2001-01-15
15 September 2001	%d %M %Y	2001-09-15
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15 SEPTEMB 2001	%d %M %Y	2001-09-15
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15 MAY 2001	%d %b %Y	2001-05-15
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15th May 2001	%D %b %Y	2001-05-15
226 227 228 229
Sunday 15 MAY 2001	%W %d %b %Y	2001-05-15
Sund 15 MAY 2001	%W %d %b %Y	2001-05-15
Tuesday 00 2002	%W %U %Y	2002-01-01
Thursday 53 1998	%W %u %Y	1998-12-31
230 231 232 233
Sunday 01 2001	%W %v %x	2001-01-07
Tuesday 52 2001	%W %V %X	2002-01-01
060 2004	%j %Y	2004-02-29
4 53 1998	%w %u %Y	1998-12-31
234 235 236 237 238 239
15-01-2001	%d-%m-%Y %H:%i:%S	2001-01-15
15-01-20	%d-%m-%y	2020-01-15
15-2001-1	%d-%Y-%c	2001-01-15
select date,format,TIME(str_to_date(date, format)) as time from t1;
date	format	time
2003-01-02 10:11:12	%Y-%m-%d %H:%i:%S	10:11:12
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03-01-02 8:11:2.123456	%y-%m-%d %H:%i:%S.%#	08:11:02
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2003-01-02 10:11:12 PM	%Y-%m-%d %h:%i:%S %p	22:11:12
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2003-01-02 01:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f%p	01:11:12.123450
2003-01-02 02:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f %p	02:11:12.123450
2003-01-02 12:11:12.12345 am	%Y-%m-%d %h:%i:%S.%f%p	00:11:12.123450
245 246 247
2003-01-02 11:11:12Pm	%Y-%m-%d %h:%i:%S%p	23:11:12
10:20:10	%H:%i:%s	10:20:10
10:20:10	%h:%i:%s.%f	10:20:10
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10:20:10	%T	10:20:10
249
10:20:10AM	%h:%i:%s%p	10:20:10
250
10:20:10AM	%r	10:20:10
251
10:20:10.44AM	%h:%i:%s.%f%p	10:20:10.440000
252 253 254 255
15-01-2001 12:59:58	%d-%m-%Y %H:%i:%S	12:59:58
15 September 2001	%d %M %Y	00:00:00
15 SEPTEMB 2001	%d %M %Y	00:00:00
15 MAY 2001	%d %b %Y	00:00:00
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15th May 2001	%D %b %Y	00:00:00
257 258 259 260
Sunday 15 MAY 2001	%W %d %b %Y	00:00:00
Sund 15 MAY 2001	%W %d %b %Y	00:00:00
Tuesday 00 2002	%W %U %Y	00:00:00
Thursday 53 1998	%W %u %Y	00:00:00
261 262 263 264
Sunday 01 2001	%W %v %x	00:00:00
Tuesday 52 2001	%W %V %X	00:00:00
060 2004	%j %Y	00:00:00
4 53 1998	%w %u %Y	00:00:00
265 266 267 268 269 270
15-01-2001	%d-%m-%Y %H:%i:%S	00:00:00
15-01-20	%d-%m-%y	00:00:00
15-2001-1	%d-%Y-%c	00:00:00
select date,format,concat(TIME(str_to_date(date, format))) as time2 from t1;
date	format	time2
2003-01-02 10:11:12	%Y-%m-%d %H:%i:%S	10:11:12
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03-01-02 8:11:2.123456	%y-%m-%d %H:%i:%S.%#	08:11:02
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2003-01-02 10:11:12 PM	%Y-%m-%d %h:%i:%S %p	22:11:12
273 274 275
2003-01-02 01:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f%p	01:11:12.123450
2003-01-02 02:11:12.12345AM	%Y-%m-%d %h:%i:%S.%f %p	02:11:12.123450
2003-01-02 12:11:12.12345 am	%Y-%m-%d %h:%i:%S.%f%p	00:11:12.123450
276 277 278
2003-01-02 11:11:12Pm	%Y-%m-%d %h:%i:%S%p	23:11:12
10:20:10	%H:%i:%s	10:20:10
10:20:10	%h:%i:%s.%f	10:20:10
279
10:20:10	%T	10:20:10
280
10:20:10AM	%h:%i:%s%p	10:20:10
281
10:20:10AM	%r	10:20:10
282
10:20:10.44AM	%h:%i:%s.%f%p	10:20:10.440000
283 284 285 286
15-01-2001 12:59:58	%d-%m-%Y %H:%i:%S	12:59:58
15 September 2001	%d %M %Y	00:00:00
15 SEPTEMB 2001	%d %M %Y	00:00:00
15 MAY 2001	%d %b %Y	00:00:00
287
15th May 2001	%D %b %Y	00:00:00
288 289 290 291
Sunday 15 MAY 2001	%W %d %b %Y	00:00:00
Sund 15 MAY 2001	%W %d %b %Y	00:00:00
Tuesday 00 2002	%W %U %Y	00:00:00
Thursday 53 1998	%W %u %Y	00:00:00
292 293 294 295
Sunday 01 2001	%W %v %x	00:00:00
Tuesday 52 2001	%W %V %X	00:00:00
060 2004	%j %Y	00:00:00
4 53 1998	%w %u %Y	00:00:00
296 297 298
15-01-2001	%d-%m-%Y %H:%i:%S	00:00:00
15-01-20	%d-%m-%y	00:00:00
15-2001-1	%d-%Y-%c	00:00:00
299 300 301
select concat('',str_to_date('8:11:2.123456 03-01-02','%H:%i:%S.%f %y-%m-%d'));
concat('',str_to_date('8:11:2.123456 03-01-02','%H:%i:%S.%f %y-%m-%d'))
2003-01-02 08:11:02.123456
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truncate table t1;
insert into t1 values
('2003-01-02 10:11:12 PM', '%Y-%m-%d %H:%i:%S %p'),
('2003-01-02 10:11:12.123456', '%Y-%m-%d %h:%i:%S %p'),
('2003-01-02 10:11:12AM', '%Y-%m-%d %h:%i:%S.%f %p'),
('2003-01-02 10:11:12AN', '%Y-%m-%d %h:%i:%S%p'),
('2003-01-02 10:11:12 PM', '%y-%m-%d %H:%i:%S %p'),
('10:20:10AM', '%H:%i:%s%p'),
('15 Septembei 2001', '%d %M %Y'),
('15 Ju 2001', '%d %M %Y'),
('Sund 15 MA', '%W %d %b %Y'),
('Thursdai 12 1998', '%W %u %Y'),
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('Sunday 01 2001', '%W %v %X'),
('Tuesday 52 2001', '%W %V %x'),
('Tuesday 52 2001', '%W %V %Y'),
('Tuesday 52 2001', '%W %u %x'),
('7 53 1998', '%w %u %Y'),
(NULL, get_format(DATE,'USA'));
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select date,format,str_to_date(date, format) as str_to_date from t1;
date	format	str_to_date
2003-01-02 10:11:12 PM	%Y-%m-%d %H:%i:%S %p	NULL
2003-01-02 10:11:12.123456	%Y-%m-%d %h:%i:%S %p	NULL
2003-01-02 10:11:12AM	%Y-%m-%d %h:%i:%S.%f %p	NULL
2003-01-02 10:11:12AN	%Y-%m-%d %h:%i:%S%p	NULL
2003-01-02 10:11:12 PM	%y-%m-%d %H:%i:%S %p	NULL
10:20:10AM	%H:%i:%s%p	NULL
15 Septembei 2001	%d %M %Y	NULL
15 Ju 2001	%d %M %Y	NULL
Sund 15 MA	%W %d %b %Y	NULL
Thursdai 12 1998	%W %u %Y	NULL
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Sunday 01 2001	%W %v %X	NULL
Tuesday 52 2001	%W %V %x	NULL
Tuesday 52 2001	%W %V %Y	NULL
Tuesday 52 2001	%W %u %x	NULL
7 53 1998	%w %u %Y	NULL
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NULL	%m.%d.%Y	NULL
select date,format,concat(str_to_date(date, format),'') as con from t1;
date	format	con
2003-01-02 10:11:12 PM	%Y-%m-%d %H:%i:%S %p	NULL
2003-01-02 10:11:12.123456	%Y-%m-%d %h:%i:%S %p	NULL
2003-01-02 10:11:12AM	%Y-%m-%d %h:%i:%S.%f %p	NULL
2003-01-02 10:11:12AN	%Y-%m-%d %h:%i:%S%p	NULL
2003-01-02 10:11:12 PM	%y-%m-%d %H:%i:%S %p	NULL
10:20:10AM	%H:%i:%s%p	NULL
15 Septembei 2001	%d %M %Y	NULL
15 Ju 2001	%d %M %Y	NULL
Sund 15 MA	%W %d %b %Y	NULL
Thursdai 12 1998	%W %u %Y	NULL
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Sunday 01 2001	%W %v %X	NULL
Tuesday 52 2001	%W %V %x	NULL
Tuesday 52 2001	%W %V %Y	NULL
Tuesday 52 2001	%W %u %x	NULL
7 53 1998	%w %u %Y	NULL
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NULL	%m.%d.%Y	NULL
truncate table t1;
insert into t1 values
('10:20:10AM', '%h:%i:%s'),
('2003-01-02 10:11:12', '%Y-%m-%d %h:%i:%S'),
('03-01-02 10:11:12 PM', '%Y-%m-%d %h:%i:%S %p');
select date,format,str_to_date(date, format) as str_to_date from t1;
date	format	str_to_date
10:20:10AM	%h:%i:%s	0000-00-00 10:20:10
2003-01-02 10:11:12	%Y-%m-%d %h:%i:%S	2003-01-02 10:11:12
03-01-02 10:11:12 PM	%Y-%m-%d %h:%i:%S %p	0003-01-02 22:11:12
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Warnings:
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Warning	1292	Truncated incorrect datetime value: '10:20:10AM'
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select date,format,concat(str_to_date(date, format),'') as con from t1;
date	format	con
10:20:10AM	%h:%i:%s	0000-00-00 10:20:10
2003-01-02 10:11:12	%Y-%m-%d %h:%i:%S	2003-01-02 10:11:12
03-01-02 10:11:12 PM	%Y-%m-%d %h:%i:%S %p	0003-01-02 22:11:12
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Warnings:
374
Warning	1292	Truncated incorrect datetime value: '10:20:10AM'
375
drop table t1;
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select get_format(DATE, 'USA') as a;
a
%m.%d.%Y
select get_format(TIME, 'internal') as a;
a
%H%i%s
select get_format(DATETIME, 'eur') as a;
a
384
%Y-%m-%d %H.%i.%s
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select get_format(TIMESTAMP, 'eur') as a;
a
%Y-%m-%d %H.%i.%s
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select get_format(DATE, 'TEST') as a;
a
NULL
select str_to_date('15-01-2001 12:59:59', GET_FORMAT(DATE,'USA'));
str_to_date('15-01-2001 12:59:59', GET_FORMAT(DATE,'USA'))
NULL
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explain extended select makedate(1997,1), addtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002"),subtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002"),timediff("01.01.97 11:59:59.000001 PM","31.12.95 11:59:59.000002 PM"),cast(str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S") as TIME), maketime(23,11,12),microsecond("1997-12-31 23:59:59.000001");
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
Warnings:
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Note	1003	select makedate(1997,1) AS `makedate(1997,1)`,addtime(_latin1'31.12.97 11.59.59.999999 PM',_latin1'31.12.97 11.59.59.999999 PM') AS `addtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002")`,subtime(_latin1'31.12.97 11.59.59.999999 PM',_latin1'31.12.97 11.59.59.999999 PM') AS `subtime("31.12.97 11.59.59.999999 PM", "1 1.1.1.000002")`,timediff(_latin1'01.01.97 11:59:59.000001 PM',_latin1'31.12.95 11:59:59.000002 PM') AS `timediff("01.01.97 11:59:59.000001 PM","31.12.95 11:59:59.000002 PM")`,cast(str_to_date(_latin1'15-01-2001 12:59:59',_latin1'%d-%m-%Y %H:%i:%S') as time) AS `cast(str_to_date("15-01-2001 12:59:59", "%d-%m-%Y %H:%i:%S") as TIME)`,maketime(23,11,12) AS `maketime(23,11,12)`,microsecond(_latin1'1997-12-31 23:59:59.000001') AS `microsecond("1997-12-31 23:59:59.000001")`
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create table t1 (d date);
insert into t1 values ('2004-07-14'),('2005-07-14');
select date_format(d,"%d") from t1 order by 1;
date_format(d,"%d")
14
14
drop table t1;
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select str_to_date("2003-....01ABCD-02 10:11:12.0012", "%Y-%.%m%@-%d %H:%i:%S.%f") as a;
a
2003-01-02 10:11:12.001200
create table t1 select str_to_date("2003-01-02 10:11:12.0012", "%Y-%m-%d %H:%i:%S.%f") as f1,
str_to_date("10:11:12.0012", "%H:%i:%S.%f") as f2,
str_to_date("2003-01-02", "%Y-%m-%d") as f3,
str_to_date("02", "%d") as f4, str_to_date("02 10", "%d %H") as f5;
describe t1;
Field	Type	Null	Key	Default	Extra
f1	datetime	YES		NULL	
f2	time	YES		NULL	
f3	date	YES		NULL	
f4	date	YES		NULL	
f5	time	YES		NULL	
select * from t1;
f1	f2	f3	f4	f5
2003-01-02 10:11:12	10:11:12	2003-01-02	0000-00-02	58:00:00
drop table t1;
create table t1 select "02 10" as a, "%d %H" as b;
select str_to_date(a,b) from t1;
str_to_date(a,b)
0000-00-02 10:00:00
create table t2 select str_to_date(a,b) from t1;
describe t2;
Field	Type	Null	Key	Default	Extra
431
str_to_date(a,b)	binary(29)	YES		NULL	
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select str_to_date("2003-01-02 10:11:12.0012", "%Y-%m-%d %H:%i:%S.%f") as f1,
str_to_date("2003-01-02 10:11:12.0012", "%Y-%m-%d %H:%i:%S") as f2,
str_to_date("2003-01-02", "%Y-%m-%d") as f3,
str_to_date("02 10:11:12", "%d %H:%i:%S.%f") as f4,
str_to_date("02 10:11:12", "%d %H:%i:%S") as f5,
str_to_date("02 10", "%d %f") as f6;
f1	f2	f3	f4	f5	f6
2003-01-02 10:11:12.001200	2003-01-02 10:11:12	2003-01-02	58:11:12	58:11:12	48:00:00.100000
Warnings:
441
Warning	1292	Truncated incorrect datetime value: '2003-01-02 10:11:12.0012'
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drop table t1, t2;
select str_to_date("2003-01-02 10:11:12.0012ABCD", "%Y-%m-%d %H:%i:%S.%f") as f1,
addtime("-01:01:01.01 GGG", "-23:59:59.1") as f2,
microsecond("1997-12-31 23:59:59.01XXXX") as f3;
f1	f2	f3
2003-01-02 10:11:12.001200	-25:01:00.110000	10000
Warnings:
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Warning	1292	Truncated incorrect datetime value: '2003-01-02 10:11:12.0012ABCD'
Warning	1292	Truncated incorrect time value: '-01:01:01.01 GGG'
Warning	1292	Truncated incorrect time value: '1997-12-31 23:59:59.01XXXX'
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select str_to_date("2003-04-05  g", "%Y-%m-%d") as f1,
str_to_date("2003-04-05 10:11:12.101010234567", "%Y-%m-%d %H:%i:%S.%f") as f2;
f1	f2
2003-04-05	2003-04-05 10:11:12.101010
Warnings:
457 458
Warning	1292	Truncated incorrect date value: '2003-04-05  g'
Warning	1292	Truncated incorrect datetime value: '2003-04-05 10:11:12.101010234567'
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create table t1 (f1 datetime);
insert into t1 (f1) values ("2005-01-01");
insert into t1 (f1) values ("2005-02-01");
select date_format(f1, "%m") as d1, date_format(f1, "%M") as d2 from t1 order by date_format(f1, "%M");
d1	d2
02	February
01	January
drop table t1;
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select str_to_date( 1, NULL );
str_to_date( 1, NULL )
NULL
select str_to_date( NULL, 1 );
str_to_date( NULL, 1 )
NULL
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select str_to_date( 1, IF(1=1,NULL,NULL) );
str_to_date( 1, IF(1=1,NULL,NULL) )
NULL
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SELECT TIME_FORMAT("24:00:00", '%r');
TIME_FORMAT("24:00:00", '%r')
12:00:00 AM
SELECT TIME_FORMAT("00:00:00", '%r');
TIME_FORMAT("00:00:00", '%r')
12:00:00 AM
SELECT TIME_FORMAT("12:00:00", '%r');
TIME_FORMAT("12:00:00", '%r')
12:00:00 PM
SELECT TIME_FORMAT("15:00:00", '%r');
TIME_FORMAT("15:00:00", '%r')
03:00:00 PM
SELECT TIME_FORMAT("01:00:00", '%r');
TIME_FORMAT("01:00:00", '%r')
01:00:00 AM
SELECT TIME_FORMAT("25:00:00", '%r');
TIME_FORMAT("25:00:00", '%r')
01:00:00 AM
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SELECT TIME_FORMAT("00:00:00", '%l %p');
TIME_FORMAT("00:00:00", '%l %p')
12 AM
SELECT TIME_FORMAT("01:00:00", '%l %p');
TIME_FORMAT("01:00:00", '%l %p')
1 AM
SELECT TIME_FORMAT("12:00:00", '%l %p');
TIME_FORMAT("12:00:00", '%l %p')
12 PM
SELECT TIME_FORMAT("23:00:00", '%l %p');
TIME_FORMAT("23:00:00", '%l %p')
11 PM
SELECT TIME_FORMAT("24:00:00", '%l %p');
TIME_FORMAT("24:00:00", '%l %p')
12 AM
SELECT TIME_FORMAT("25:00:00", '%l %p');
TIME_FORMAT("25:00:00", '%l %p')
1 AM