本文转自：http://dev.mysql.com/doc/refman/4.1/en/date-and-time-functions.html#function_date-format
DATE_FORMAT(date,format)
Formats the date value according to the format string.
The following specifiers may be used in the format string. As of MySQL 3.23, the “%” character is required before format specifier characters. In earlier versions of MySQL, “%” was optional.
| Specifier | Description |
|---|---|
%a |
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 |
AM or PM |
%r |
Time, 12-hour (hh:mm:ss followed by AM or PM) |
%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 with %X |
%v |
Week (01..53), where Monday is the first day of the week; used with %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 with %V |
%x |
Year for the week, where Monday is the first day of the week, numeric, four digits; used with %v |
%Y |
Year, numeric, four digits |
%y |
Year, numeric (two digits) |
%% |
A literal “%” character |
% |
x, for any “x” not listed above |
The %v, %V, %x, and %X format specifiers are available as of MySQL 3.23.8. %f is available as of MySQL 4.1.1.
Ranges for the month and day specifiers begin with zero due to the fact that MySQL permits the storing of incomplete dates such as '2014-00-00' (as of MySQL 3.23).
As of MySQL 4.1.21, the language used for day and month names and abbreviations is controlled by the value of the lc_time_names system variable (Section 9.8, “MySQL Server Locale Support”).
As of MySQL 4.1.23, DATE_FORMAT() returns a string with a character set and collation given by character_set_connection and collation_connection so that it can return month and weekday names containing non-ASCII characters. Before 4.1.23, the return value is a binary string.
mysql>SELECT DATE_FORMAT('2009-10-04 22:23:00', '%W %M %Y');-> 'Sunday October 2009' mysql>SELECT DATE_FORMAT('2007-10-04 22:23:00', '%H:%i:%s');-> '22:23:00' mysql>SELECT DATE_FORMAT('1900-10-04 22:23:00',->'%D %y %a %d %m %b %j');-> '4th 00 Thu 04 10 Oct 277' mysql>SELECT DATE_FORMAT('1997-10-04 22:23:00',->'%H %k %I %r %T %S %w');-> '22 22 10 10:23:00 PM 22:23:00 00 6' mysql>SELECT DATE_FORMAT('1999-01-01', '%X %V');-> '1998 52' mysql>SELECT DATE_FORMAT('2006-06-00', '%d');-> '00'
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