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.
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'
