SELECT LAST_DAY(\'2003-02-05\');\n        -> \'2003-02-28\'\nmysql> SELECT LAST_DAY(\'2004-02-05\');\n        -> \'2004-02-29\'\nmysql> SELECT LAST_DAY(\'2004-01-01 01:01:01\');\n        -> \'2004-01-31\'\nmysql> SELECT LAST_DAY(\'2003-03-32\');\n        -> NULL\n','http://dev.mysql.com/doc/refman/5.7/en/date-and-time-functions.html');