Mysql 日期时间 DATE_FORMAT(date,format)

%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) %pAM 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,four digits; used with %v%Y Year,four digits %y Year,numeric (two digits) %% A literal “%” character %xx,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'

（编辑：李大同）

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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(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