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本文轉自：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.
%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
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'
