Mysql 日期时间 DATE_FORMAT(date,format)_MySQL

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本文转自：http://dev.mysql.com/doc/refman/4.1/en/date-and-time-functions.html#function_date-format

DATE_FORMAT(<em class="replaceable"><code>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
%<em class="replaceable"><code>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> <strong class="userinput"><code>SELECT DATE_FORMAT('2009-10-04 22:23:00', '%W %M %Y');</code></strong>    -> 'Sunday October 2009'mysql> <strong class="userinput"><code>SELECT DATE_FORMAT('2007-10-04 22:23:00', '%H:%i:%s');</code></strong>    -> '22:23:00'mysql> <strong class="userinput"><code>SELECT DATE_FORMAT('1900-10-04 22:23:00',</code></strong>  -> <strong class="userinput"><code>        '%D %y %a %d %m %b %j');</code></strong>    -> '4th 00 Thu 04 10 Oct 277'mysql> <strong class="userinput"><code>SELECT DATE_FORMAT('1997-10-04 22:23:00',</code></strong>  -> <strong class="userinput"><code>        '%H %k %I %r %T %S %w');</code></strong>    -> '22 22 10 10:23:00 PM 22:23:00 00 6'mysql> <strong class="userinput"><code>SELECT DATE_FORMAT('1999-01-01', '%X %V');</code></strong>    -> '1998 52'mysql> <strong class="userinput"><code>SELECT DATE_FORMAT('2006-06-00', '%d');</code></strong>    -> '00'

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