MySQL: Function 3: Date and Time Functions: Important formatting Functions

Source: Internet
Author: User
Tags iso 8601 month name

Date_format (Date,Format_ Str)

FormatsDateValue according
TheFormatString.

The following specifiers MAY BE USED INFormatString. The"%"Character is required before format specifier
Characters.

Specifier Description
% Abbreviated weekday name (Sun..Sat)
% B Abbreviated month name (Jan..Dec)
% C Month, numeric (0..12)
% D Day of the month with English suffix (0th,1st,2nd,3rd,...)
% D Day of the month, numeric (00..31)
% E Day of the month, numeric (0..31)
% F Microseconds (000000..999999)
% H Hour (00..23)
% H Hour (01..12)
% I Hour (01..12)
% I Minutes, numeric (00..59)
% J Day of year (001..366)
% K Hour (0..23)
% L Hour (1..12)
% M Month name (January..December)
% M Month, numeric (00..12)
% P AMOrPM
% R Time, 12-hour (Hh: mm: SSFollowedAMOrPM)
% S Seconds (00..59)
% S Seconds (00..59)
% T Time, 24-hour (Hh: mm: SS)
% U Week (00..53), Where
Sunday is the first day of the week
% U Week (00..53), Where
Monday is the first day of the week
% V Week (01..53), Where
Sunday is the first day of the week; used% X
% V Week (01..53), Where
Monday is the first day of the week; used% X
% W Weekday name (Sunday..Saturday)
% W Day of the week (0= Sunday ..6= Saturday)
% X Year for the week where Sunday is the first day of the week, numeric, four
Digits; used% V
% X Year for the week, where Monday is the first day of the week, numeric, four
Digits; used% V
% Y Year, numeric, four digits
% Y Year, numeric (two digits)
% A literal"%"
Character
%X X, For any"X"Not listed
Above

Ranges for the month and day specifiers begin with zero due to the fact that
MySQL allows the storing of incomplete dates such'2017-00-00'.

As of MySQL 5.1.12, the language used for day and month names and
Abbreviations is controlled by the value ofLc_time_namesSystem variable (section 9.8, "MySQL
Server locale support ").

As of MySQL 5.1.15,Date_format ()Returns a string with a character set and
Collation givenCharacter_set_connectionAndCollation_connectionSo that it can return month and
Weekday names containing non-ASCII characters. Before 5.1.15, the return value
Is a binary string.

Mysql> Select date_format ('2017-10-04 22:23:00 ',' % w % m % y '); 
-> 'Sunday October 2009'
Mysql> Select date_format ('2017-10-04 22:23:00 ',' % H: % I: % s ');
-> '22: 23: 00'
Mysql> Select date_format ('2017-10-04 22:23:00 ',
-> '% D % Y % A % d % m % B % J ');
-> '4th 00 Thu 04 10 Oct 277'
Mysql> Select date_format ('2017-10-04 22:23:00 ',
-> '% H % K % I % R % T % S % W ');
-> '22 22 10 10:23:00 PM 22:23:00 6'
Mysql> Select date_format ('2017-01-01 ',' % x % V ');
-> '2014 52'
Mysql> Select date_format ('2017-06-00 ',' % D ');
-> '00'



Get_format ({date | time | datetime },
{'Eur' | 'usa' | 'jis '| 'iso' | 'internal '})

Returns a format string. This function is useful in combination withDate_format ()AndStr_to_date ()Functions.

The possible values for the first and second arguments result in several
Possible format strings (for the specifiers used, see the table inDate_format ()Function Description). ISO Format refers
To ISO 9075, not ISO 8601.

Function call Result
Get_format (date, 'USA ') '% M. % d. % y'
Get_format (date, 'jis ') '% Y-% m-% d'
Get_format (date, 'iso ') '% Y-% m-% d'
Get_format (date, 'eur ') '% D. % m. % y'
Get_format (date, 'internal ') '% Y % m % d'
Get_format (datetime, 'USA ') '% Y-% m-% d % H. % I. % s'
Get_format (datetime, 'jis ') '% Y-% m-% d % H: % I: % s'
Get_format (datetime, 'iso ') '% Y-% m-% d % H: % I: % s'
Get_format (datetime, 'eur ') '% Y-% m-% d % H. % I. % s'
Get_format (datetime, 'internal ') '% Y % m % d % H % I % s'
Get_format (time, 'USA ') '% H: % I: % S % P'
Get_format (time, 'jis ') '% H: % I: % s'
Get_format (time, 'iso ') '% H: % I: % s'
Get_format (time, 'eur ') '% H. % I. % s'
Get_format (time, 'internal ') '% H % I % s'

Date, and
Timestamp types "href =" ch10s03.html # datetime ">TimestampCan also
Be used as the first argumentGet_format (), In which case the function returns
Same values as for date, and
Timestamp types "href =" ch10s03.html # datetime ">Datetime.

Mysql>Select date_format ('2017-10-03 ', get_format (date, 'eur '));
-> '03. 10.2003'
Mysql>Select str_to_date ('10. 31.2003 ', get_format (date, 'USA '));
-> '2017-10-31'

 

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